CN112697698B - Double-beam synergistic laser shock wave binding force detection device and method - Google Patents

Abstract

The application provides a double-beam cooperative laser shock wave binding force detection method and a detection device suitable for the method, belongs to the technical field of laser application, and is characterized in that the existing single beam is improved into double beams, the double beams after improvement are used for impacting a composite material adhesive part to be detected according to a preset cooperative mode, and then an ultrasonic nondestructive detection device is used for detecting whether a double-beam impacted area has a delaminating defect or not, so that whether the bonding position of the composite material to be detected meets a bonding force standard or not is judged.

Description

Double-beam synergy laser shock wave binding force detection device and method

technical field

The invention relates to the technical field of laser applications, in particular to a double-beam cooperative laser shock wave binding force detection method.

Background technique

Laser Bond Inspection (LBI) is a new type of interface bonding detection technology, which uses high-power nanosecond pulse laser to irradiate the surface of the material, and the surface of the material absorbs the protective layer (black tape, aluminum foil, etc.) The laser energy rapidly undergoes explosive gasification and evaporation to form a high-pressure plasma shock wave. The shock wave first propagates into the material in the form of a compression wave, but is transformed into a stretching wave after being reflected on the back, and the reflected stretching wave will couple with the unloading wave of the compression wave. , and act on the adhesive interface, when the coupling tensile stress value exceeds the bonding strength of the bonding interface, spallation will occur at this place, so it can be judged whether the material bonding force meets the design according to the tensile wave stress value and spallation phenomenon standard. Laser shock wave bonding force detection technology is a derivative technology of laser shock strengthening technology. The latter uses the first wave of laser shock wave (incident compression wave) to carry out surface plastic processing of metal materials, while the latter uses the second wave of laser shock wave (reflection Tensile wave) is used to perform tensile testing on the adhesive interface of resin matrix composites. The laser shock wave bonding force detection technology can not only detect the bonding force of the composite material bonding interface, but also detect the interface bonding force of the coating/film and dissimilar material connection, especially in the "kissing" and "weak bonding" of the composite material bonding interface. "It has unique advantages in detection, and has great application prospects in aircraft resin-based composite materials, functional coatings/films of aircraft/engine components.

The position of the interface that can be detected by laser shock wave combined force detection depends on the coupling position of the reflected stretching wave and the unloading wave of the compressional wave. In actual engineering, aircraft resin-based composite parts may be glued from laminates of different thicknesses, and the glued interface will be at different depths. When it is necessary to detect composite parts with different adhesive forms, that is, the adhesive interface is located at different depths of the composite parts, it is necessary to control the coupling position of the reflected tensile wave and the unloaded wave. According to the propagation law of the laser shock wave in the composite material, the coupling position of the reflected wave and the unloaded wave mainly depends on the laser pulse width, and has nothing to do with the laser energy, spot size and other parameters. However, at present, most of the nanosecond pulse lasers used for laser shock strengthening and laser shock wave binding force detection in China are of fixed pulse width, and a few pulse widths are adjustable only for a few nanoseconds. The coupling position of the wave is basically fixed, so it can only detect the adhesive interface at a specific depth, which cannot meet the detection requirements of composite materials with different adhesive forms.

Therefore, there is an urgent need for a laser shock wave bonding force detection method applicable to the adhesive interface at any depth position under the condition of a fixed pulse width nanosecond pulse laser beam.

Contents of the invention

In view of this, the present invention provides a double-beam cooperative laser shock wave binding force detection method, which is characterized in that: the method includes the following steps:

S1: Through the finite element software, the dynamic simulation of single-beam laser shock wave propagation of the composite material adhesive part to be tested is carried out, and the attenuation law and reflection law of the single-beam laser shock wave inside the composite material adhesive part to be tested are obtained;

S2: According to the relationship between the coupling position of the two-beam laser shock wave tensile stress wave and the adhesive interface, a double-beam cooperative impact method is designed. The adhesive interface is located at a depth of > 1/2. Single-sided double-beam delayed impact is used, and the adhesive interface is located at 1/2. 2. Double-sided double-beam frontal impact is used for the depth, and double-sided double-beam frontal delayed impact is used for the adhesive interface at <1/2 depth; then, according to the relationship between the stress value of the coupling position and the bonding force standard, the laser energy and spot Size design, adjust the initial shock wave pressure amplitude, so that the stress value at the coupling position is equal to the bonding force standard;

S3: Apply an absorbing protective layer and a constrained layer sequentially on the composite adhesive part, set the energy and spot size of the pulsed laser according to step S2, and perform double-beam coordination on the composite adhesive part to be tested according to the impact mode determined in step S2 impact;

S4: Use the ultrasonic non-destructive testing device to detect the internal lamination defect of the composite material adhesive part to be tested, and judge whether there is abnormal echo in the adhesive part. If it is, the adhesive force does not meet the standard; if not, the adhesive force meets the standard standard.

Further, the single-sided double-beam delay impact specifically includes: lengthening the optical path through the optical lens assembly, adjusting the delayed arrival time of the second beam-splitting pulse laser, and realizing the delay of the second beam-splitting laser relative to the first beam-splitting laser As a result, by adjusting the reflected wave of the first beam-splitting laser shock wave and the unloading wave of the second beam-splitting laser shock wave, the coupling position coincides with the adhesive interface of the composite material to be detected.

Further, the double-sided double-beam frontal impact specifically includes: using optical lenses to split the laser beam, the two split laser beams reach both sides of the composite material component at the same time, the reflected wave of the first split laser shock wave and the second split laser beam The coupling position of the reflected wave of the shock wave is just at the middle depth of the composite material, that is, the glued place of two equal-thickness composite material plates, that is, 1/2 of the thickness of the entire part.

Further, the double-sided double-beam facing delay impact specifically includes: using optical lenses to split the laser beam, and at the same time, placing the optical lenses to lengthen the optical path, adjusting the delayed arrival time of the second split laser, and controlling the delay time Adjust the length of the coupling of the reflected wave of the first split laser shock wave and the reflected wave of the second split laser shock wave, and make the coupling position coincide with the adhesive interface of the composite material to be detected.

Correspondingly, the present invention also provides a double-beam cooperative laser shock wave bonding force detection device, characterized in that: the detection device is suitable for any of the detection methods in claims 1-4, and the device includes: a laser, a full Reflecting mirror, beam splitter and ultrasonic nondestructive testing device, the laser is used to emit a single laser beam, and the beam splitter is used to divide the single laser beam emitted by the laser into a first split laser beam and a second split beam laser, the total reflection mirror is used to form an optical path that transmits the first beam-splitting laser and the second beam-splitting laser to the composite material to be tested, and the ultrasonic non-destructive testing device is used to inspect the inner layer of the double-beam laser impact area Crack defect detection;

The ultrasonic non-destructive testing device includes a probe, a data connection and a host computer, and the probe is set in the area where the composite material to be tested is impacted by the laser.

Further, the optical path of the device is matched with the coordinated impact of double beams, and the optical path includes a single-sided double-beam delayed impact optical path, a double-sided double-beam facing impact optical path, and a double-sided double-beam delayed impact optical path;

The total reflection mirror in the single-sided double-beam delay impact optical path includes total reflection mirror I, total reflection mirror II, total reflection mirror III and total reflection mirror IV, and the total reflection mirror makes the laser beam entering the total reflection mirror It is perpendicular to the laser beam reflected by the total reflection mirror, and the total reflection mirror Ⅰ is set on the optical path of the laser beam emitted by the laser. The laser beam is vertical, and the laser beam reflected by the total reflection mirror I enters the beam splitter, and the beam splitter divides the injected laser beam into the first split laser beam and the second split laser beam, and the first split laser beam passes through the total reflection mirror IV reaches the surface of the composite material to be detected, the second split laser beam enters the total reflection mirror III through the total reflection mirror II, and the second split laser beam is reflected to the surface of the composite material to be detected by the total reflection mirror III,

The first beam-splitting laser arriving at the surface of the composite material to be detected is the same surface as the second beam-splitting laser arriving at the surface of the composite material to be detected, and the first beam-splitting laser arrives at the surface of the composite material to be detected before the second beam-splitting laser;

Further, the total reflection mirror with two sides and two beams facing the impacting optical path includes total reflection mirror I, total reflection mirror II, total reflection mirror III and total reflection mirror IV, and the beam splitter is arranged on the optical path of the laser beam emitted by the laser, The beam splitter is used to divide the laser beam into the first split laser and the second split laser. The first split laser enters the total reflection mirror II through the total reflection mirror I, and is reflected by the total reflection mirror II to the composite material to be tested. The second split laser beam enters the total reflection mirror IV through the total reflection mirror III, and is reflected by the total reflection mirror IV to the second surface of the composite material to be detected;

The first surface and the second surface are respectively two opposite surfaces of the composite material to be inspected, and the first split-beam laser and the second split-beam laser reach the surface of the composite material to be inspected at the same time.

Further, in the double-sided double-beam delay impact optical path, the first split laser reaches the surface of the composite material to be inspected before the second split laser.

Beneficial technical effects of the present invention: This application discloses three double-beam synergistic impact methods: single-sided double-beam delayed impact, double-sided double-beam positive impact and double-sided double-beam positive delayed impact, realizing resin-based composite Fast and accurate detection of the bonding force of the adhesive interface at any depth position of the material part. The whole detection method is simple in principle, low in laser technical parameter requirements, easy to operate, strong in versatility, fast and accurate in detection, and can be applied to composite material parts of different adhesive forms in actual engineering.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

FIG. 1 is a schematic structural diagram of the single-sided double-beam delayed impact method of the laser shock wave bonding force detection system of the present application.

Fig. 2 is a schematic structural diagram of the double-sided double-beam facing impact method of the laser shock wave bonding force detection system of the present application.

Fig. 3 is a schematic structural diagram of the double-sided double-beam facing delay impact method of the laser shock wave bonding force detection system of the present application.

FIG. 4 is a flow chart of the laser shock wave binding force detection method of the present application.

FIG. 5 is a schematic diagram of shock wave propagation in the laser shock wave binding force detection method of the present invention.

In Fig. 1-Fig. 3, 1--laser, 2--nanosecond pulsed laser beam, 3--optical total reflection lens, 4--optical beam splitter, 5--the first split pulse laser, 6--the first Two-beam split pulse laser, 7-constrained layer, 8-absorbing protective layer, 9-composite material, 10-adhesive layer, 11-first split laser shock wave, 12-second split laser Shock wave, 13--ultrasonic non-destructive testing probe, 14--data connection and 15--ultrasonic non-destructive testing host; in Figure 5, (a) schematic diagram of shock wave propagation in single-sided single-beam laser shock mode, (b) single-sided double Schematic diagram of shock wave propagation in beam-delayed impact mode, (c) schematic diagram of shock wave propagation in double-sided double-beam frontal impact mode, (d) schematic diagram of shock wave propagation in double-sided double-beam frontal impact mode; 9--Composite materials, 10—adhesive layer, 16—compression wave of the first split laser shock wave, 17—unloading wave of the first split laser shock wave, 18—reflected stretch wave of the first split laser shock wave, 19— - the compression wave of the second beam split laser shock wave, 20 - the unloading wave of the second beam split laser shock wave, 21 - the reflected stretch wave of the second beam split laser shock wave and 22 - the adhesive interface detection point.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

The present invention provides a double-beam cooperative laser shock wave binding force detection method, which is characterized in that: the method includes the following steps: as shown in Figure 4,

S1: Use finite element software to perform dynamic simulation of the single-beam laser shock wave propagation of the composite material adhesive part to be tested, and obtain the attenuation and reflection laws of the single-beam laser shock wave inside the composite material adhesive part to be tested; the finite element software uses the existing finite element software, which will not be repeated here;

S2: According to the relationship between the coupling position of the two-beam laser shock wave tensile stress wave and the adhesive interface, a double-beam cooperative impact method is designed. The adhesive interface is located at a depth of > 1/2. Single-sided double-beam delayed impact is used, and the adhesive interface is located at 1/2. 2. Double-sided double-beam frontal impact is used for the depth, and double-sided double-beam frontal delayed impact is used for the adhesive interface at <1/2 depth; then, according to the relationship between the stress value of the coupling position and the bonding force standard, the laser energy and spot Size design, adjust the initial shock wave pressure amplitude, so that the stress value at the coupling position is equal to the bonding force standard;

S3: Apply an absorbing protective layer and a constrained layer sequentially on the composite adhesive part, set the energy and spot size of the pulsed laser according to step S2, and perform double-beam coordination on the composite adhesive part to be tested according to the impact mode determined in step S2 Impact; the absorbing protective layer is black adhesive tape, and the constraining layer is deionized water;

S4: Use the ultrasonic non-destructive testing device to detect the internal lamination defect of the composite material adhesive part to be tested, and judge whether there is abnormal echo in the adhesive part. If it is, the adhesive force does not meet the standard; if not, the adhesive force meets the standard standard.

The above technical scheme discloses three double-beam cooperative impact methods: single-sided double-beam delayed impact, double-sided double-beam frontal impact and double-sided double-beam positive delayed impact, which realizes resin-based composite material components at any depth. Fast and accurate detection of cohesion at sticky interfaces. The whole detection method is simple in principle, low in laser technical parameter requirements, easy to operate, strong in versatility, fast and accurate in detection, and can be applied to composite material parts of different adhesive forms in actual engineering.

In this embodiment, the single-sided double-beam delay impact specifically includes: lengthening the optical path through the optical lens assembly, adjusting the delayed arrival time of the second beam-splitting pulse laser, and realizing the second beam-splitting laser relative to the first beam-splitting The time-delay effect of the laser, by adjusting the reflected wave of the first beam-splitting laser shock wave and the unloading wave of the second beam-splitting laser shock wave, makes the coupling position coincide with the adhesive interface of the composite material to be detected. The above technical solution can realize the detection of the binding force of the adhesive interface at any depth position.

As shown in (b) of Figure 5, when the single-sided double-beam delay impacts, the total reflection mirror 3 is placed to elongate the optical path, and the delayed arrival time of the second beam-splitting pulse laser 6 is adjusted to realize the second beam-splitting laser 6. Relative to the time-delay effect of the first beam-splitting laser 5, by adjusting the coupling position of the reflected wave 18 of the first beam-splitting laser shock wave 11 and the unloading wave 20 of the second beam-splitting laser shock wave 12, it is just at the glue position 22, Thereby, the binding force detection at the gluing position 22 at any depth position is possible.

In this embodiment, the double-sided double-beam frontal impact specifically includes: using optical lenses to split the laser beam, and the two split beams reach both sides of the composite material component at the same time, and the reflected wave of the first split laser shock wave and the second The coupling position of the reflected wave of the two-beam split laser shock wave is exactly at the middle depth of the composite material, that is, the glued place of two equal-thickness composite material plates, that is, 1/2 of the thickness of the entire part. The above technical scheme can realize the detection of the binding force at the glued position of two equal-thickness laminated boards.

As shown in (c) of Figure 5, when double-sided double-beams are facing the impact, the laser beam 2 is split by the beam-splitting mirror 4, and the two split-beam lasers 5 and 6 reach both sides of the composite material component at the same time, and the first beam-splitting The coupling position of the reflected wave 18 of the laser shock wave 11 and the reflected wave 21 of the second split laser shock wave 12 is in the middle of the depth, so that the detection of the bonding force at the bonding position 22 of two equal-thickness laminates can be realized.

In this embodiment, the double-sided double-beam facing delay impact specifically includes: using optical lenses to split the laser beam, and at the same time, placing the optical lenses to lengthen the optical path, adjusting the delayed arrival time of the second split laser, The coupling of the reflected wave of the first beam-splitting laser shock wave and the reflected wave of the second beam-splitting laser shock wave is regulated by controlling the length of the delay time, and the coupling position coincides with the adhesive interface of the composite material to be detected. The above technical solution can realize the detection of the binding force of the adhesive interface at any depth position.

As shown in (d) of Figure 5, when the two-sided double-beam is facing the delayed impact, the laser beam 2 is split by the beam splitter lens 4, and the optical path is lengthened by placing the total reflection mirror 3 at the same time to adjust the second split beam The delayed arrival time of the laser 6 realizes the delay effect of the second split laser 6 relative to the first split laser 5, and regulates the reflected wave 18 of the first split laser shock wave 11 and the second split laser shock wave by controlling the delay time length The coupling position of the reflected wave 21 of 12 is exactly located at the gluing position 22, so as to realize the detection of the bonding force at the gluing position 22 at any depth position.

A double-beam synergistic laser shock wave bonding force detection method described in the present invention uses two split-beam pulsed lasers 5 and 6 to induce two-beam shock waves 11 and 12, and proposes single-sided double-beam delayed shock and double-sided double-beam positive There are two ways of impacting, the coupling position of the reflected wave 18 of the first split laser shock wave 11 and the unloading wave 20 of the second split laser shock wave 12 is adjusted during the single-sided double-beam delayed impact; By regulating the coupling position of the reflected wave 18 of the first split laser shock wave 11 and the reflected wave 21 of the second split laser shock wave 12, the fast and accurate detection of the bonding force at the bonding position 22 at any depth position of the resin-based composite material component is realized . The whole detection method is simple in principle, low in laser parameter requirements, easy to operate, strong in versatility, fast and accurate in detection, and can be applied to composite material parts of different adhesive forms in actual engineering.

Correspondingly, the present invention also provides a double-beam synergistic laser shock wave bonding force detection device, which is characterized in that: the detection device is suitable for the detection method described in any one of claims 1-4, and the device includes: as shown in Figure 1 -As shown in Fig. 3, the laser 1, the total reflection mirror 3, the beam splitter 4 and the ultrasonic non-destructive testing device, the laser 1 is used to send out double beams of laser beams, and the beam splitter 4 is used to send out the double beams of the laser The laser beam is divided into a first beam split laser 5 and a second beam split laser 6, and the total reflection mirror 3 is used to form the first beam split laser 5 and the second beam split laser 6 to be transmitted to the composite material to be detected. Optical path, the ultrasonic nondestructive testing device is used to detect internal spalling defects in the double-beam laser impact area;

The ultrasonic non-destructive testing device includes a probe 13, a data connection 14 and a host computer 15, and the probe 13 is set in the area where the composite material to be tested is impacted by the laser.

The device is used for the detection of the combined force of the laser shock wave with the cooperation of two beams.

In this embodiment, as shown in Figures 1-3, the optical path of the device is matched with the coordinated impact of double beams, and the optical path includes a single-sided double-beam delayed impact optical path, a double-sided double-beam positive impact optical path, and Double-sided double-beam delay impact optical path;

As shown in Figure 1, the total reflection mirror in the single-sided double-beam delayed impact optical path includes a total reflection mirror I3.1, a total reflection mirror II3.2, a total reflection mirror III3.3 and a total reflection mirror IV3.4, The total reflection mirror 3 makes the laser beam entering the total reflection mirror 3 perpendicular to the laser beam reflected by the total reflection mirror 3, and the total reflection mirror I3.1 is arranged on the optical path of the laser beam emitted by the laser 1, and the total reflection mirror I3. .1 It is used to make the laser beam entering the total reflection mirror I3.1 perpendicular to the laser beam reflected by the total reflection mirror I3.1, and the laser beam reflected by the total reflection mirror I3.1 enters the beam splitter 4, and the beam splitter 4 Divide the injected laser beam into the first split laser 5 and the second split laser 6, the first split laser 5 reaches the surface of the composite material to be detected through the total reflection mirror IV 3.4, and the second split laser 6 passes through The total reflection mirror II3.2 is injected into the total reflection mirror III3.3, and the second split laser beam 6 is reflected by the total reflection mirror III3.3 to the surface of the composite material to be detected,

The first split laser 5 arrives at the surface of the composite material to be detected and the second split laser 6 reaches the surface of the composite material to be detected on the same surface, and the first split laser arrives at the surface of the composite material to be detected before the second split laser ; The above-mentioned technical scheme can be used to realize single-sided double-beam time-delay impact detection.

In this embodiment, as shown in Figure 2, the total reflection mirror with double-sided double beams facing the impacting optical path includes total reflection mirror I3.1, total reflection mirror II3.2, total reflection mirror III3.3 and total reflection mirror Mirror IV 3.4, the beam splitter 4 is arranged on the optical path of the laser beam emitted by the laser, the beam splitter 4 is used to divide the laser beam into the first beam split laser 5 and the second beam split laser 6, the first beam split laser 5 is injected into the total reflection mirror Ⅱ 3.2 through the total reflection mirror Ⅰ 3.1, and is reflected by the total reflection mirror Ⅱ 3.2 to the first surface of the composite material to be tested, and the second beam splitting laser 6 is irradiated through the total reflection mirror Ⅲ 3.3 into the total reflection mirror IV3.4, and reflected by the total reflection mirror IV3.4 to the second surface of the composite material to be tested;

The first surface and the second surface are respectively two opposite surfaces of the composite material to be inspected, and the first split-beam laser and the second split-beam laser reach the surface of the composite material to be inspected at the same time. The above-mentioned technical solution can realize double-sided double-beam frontal impact detection.

In this embodiment, as shown in FIG. 3 , in the double-sided double-beam delayed impact optical path, the first beam-splitting laser arrives at the surface of the composite material to be inspected before the second beam-splitting laser. Through the position setting of the total reflection mirror III 3.3 and the total reflection mirror IV 3.4, the second split beam laser reaches the surface of the composite material to be detected later than the first split beam laser. The device can realize double-sided double-beam time-delay impact detection.

Through the single-sided double-beam delayed impact optical path, double-sided double-beam frontal impact optical path and double-sided double-beam frontal delayed impact optical path, the fast and accurate detection of the bonding force of the adhesive interface at any depth position of the resin-based composite material component is realized.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (5)

1. A double-beam synergistic laser shock wave binding force detection method is characterized by comprising the following steps: the method comprises the following steps:

s1: carrying out single-beam laser shock wave propagation dynamic simulation on the composite material adhesive part to be detected through finite element software to obtain an attenuation rule and a reflection rule of the single-beam laser shock wave in the composite material adhesive part to be detected;

s2: designing a double-beam cooperative impact mode according to the relation between the coupling position of two laser shock waves and an adhesive interface, wherein the adhesive interface is positioned at a depth of more than 1/2, single-side double-beam time-delay impact is adopted, the adhesive interface is positioned at a depth of 1/2, double-side double-beam opposite impact is adopted, and the adhesive interface is positioned at a depth of less than 1/2, double-side double-beam opposite time-delay impact is adopted; designing laser energy and light spot size according to the relation between the stress value of the coupling position and the binding force standard, and adjusting the pressure amplitude of the initial shock wave to enable the stress value of the coupling position to be equal to the binding force standard;

s3: sequentially applying an absorption protective layer and a constraint layer on the composite material adhesive part, setting the energy and the spot size of the pulse laser according to the step S2, and performing double-beam cooperative impact on the composite material adhesive part to be detected according to the impact mode determined in the step S2;

s4: carrying out internal spalling defect detection on the composite material adhesive part to be detected by using an ultrasonic nondestructive detection device, judging whether abnormal echoes exist in the adhesive part, if so, determining that the bonding force does not meet the standard, otherwise, determining that the bonding force meets the standard;

the single-side double-beam time-delay impact specifically comprises the following steps: lengthening the optical path through the optical lens assembly, adjusting the delayed arrival time of the second beam-splitting pulse laser, realizing the time delay effect of the second beam-splitting laser relative to the first beam-splitting laser, and enabling the coupling position to be coincident with the adhesive interface of the composite material to be detected by regulating and controlling the coupling position of the reflected wave of the first beam-splitting laser shock wave and the unloading wave of the second beam-splitting laser shock wave;

the double-sided double-beam opposite impact specifically comprises the following steps: splitting the laser beam by using an optical lens, wherein two split lasers simultaneously reach two sides of the composite material part, and the coupling position of the reflected wave of the first split laser shock wave and the reflected wave of the second split laser shock wave is just positioned at the middle depth of the composite material, namely the gluing position of two equal-thickness composite material plates, namely the thickness 1/2 of the whole part;

the double-sided double-beam dead-against time-delay impact specifically comprises the following steps: and splitting the laser beam by using an optical lens, placing an elongated optical path through the optical lens, adjusting the delayed arrival time of the second split laser, regulating and controlling the coupling of the reflected wave of the first split laser shock wave and the reflected wave of the second split laser shock wave by controlling the delay time, and enabling the coupling position to coincide with the adhesive interface of the composite material to be detected.

2. The utility model provides a laser shock wave cohesion detection device in double beam cooperation which characterized in that: the detection device is suitable for the detection method of claim 1, and comprises: the laser device is used for emitting a single laser beam, the spectroscope is used for dividing the single laser beam emitted by the laser device into a first split laser and a second split laser, the holophote is used for forming a light path for transmitting the first split laser and the second split laser to a composite material to be detected, and the ultrasonic nondestructive detection device is used for detecting internal spallation defects of a double-beam laser impact area;

the ultrasonic nondestructive testing device comprises a probe, a data connecting line and a host, wherein the probe is arranged in a laser-impacted area of the composite material to be tested.

3. The apparatus for detecting the bonding force of dual-beam cooperative laser shock wave according to claim 2, wherein: the light path of the device is matched with a double-beam cooperative impact mode, and the light path comprises a single-side double-beam delayed impact light path, a double-side double-beam opposite impact light path and a double-side double-beam delayed impact light path;

the total reflector in the single-side double-beam time-delay impact light path comprises a total reflector I, a total reflector II, a total reflector III and a total reflector IV, wherein the total reflector enables a laser beam entering the total reflector to be perpendicular to the laser beam reflected by the total reflector, the total reflector I is arranged on the light path of the laser beam emitted by the laser, the total reflector I is used for enabling the laser beam entering the total reflector I to be perpendicular to the laser beam reflected by the total reflector I, the laser beam reflected by the total reflector I enters the spectroscope, the spectroscope divides the laser beam entering into a first beam splitting laser and a second beam splitting laser, the first beam splitting laser reaches the surface of the composite material to be detected through the total reflector IV, the second beam splitting laser enters the total reflector III through the total reflector II and reflects the second beam splitting laser to the surface of the composite material to be detected through the total reflector III,

the first beam laser reaches the surface of the composite material to be detected, the second beam laser reaches the surface of the composite material to be detected, and the first beam laser reaches the surface of the composite material to be detected before the second beam laser.

4. The apparatus for detecting the bonding force of dual-beam cooperative laser shock wave according to claim 3, wherein: the total reflection mirror with the double surfaces and the double beams facing the impact light path comprises a total reflection mirror V, a total reflection mirror VI, a total reflection mirror VII and a total reflection mirror VIII, wherein the spectroscope is arranged on the light path of a laser beam emitted by the laser, the spectroscope is used for dividing the laser beam into a first beam splitting laser and a second beam splitting laser, the first beam splitting laser is emitted into the total reflection mirror VI through the total reflection mirror V and is reflected to the first surface of the composite material to be detected through the total reflection mirror VI, and the second beam splitting laser is emitted into the total reflection mirror VIII through the total reflection mirror VII and is reflected to the second surface of the composite material to be detected through the total reflection mirror VIII;

the first surface and the second surface are two opposite surfaces of the composite material to be detected respectively, and the first beam splitting laser and the second beam splitting laser reach the surface of the composite material to be detected simultaneously.

5. The apparatus for detecting the bonding force of dual-beam cooperative laser shock wave according to claim 4, wherein: and the first beam laser in the double-sided double-beam delay impact light path reaches the surface of the composite material to be detected before the second beam laser.

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