Coupling Finite Element Analysis and the Theory of Critical Distances to Estimate Critical Loads in Al6060-T66 Tubular Beams Containing Notches
<p>Tensile test specimens. Dimensions in mm.</p> "> Figure 2
<p>Schematic of fracture single edge notched bend (SENB) specimens. Dimensions in mm.</p> "> Figure 3
<p>Experimental setup.</p> "> Figure 4
<p>Schematic of the tubular cantilever beams containing a U-notch close to the fixed support.</p> "> Figure 5
<p>Geometry of the model used in finite element (FE) simulations, showing the middle line on the fracture section (<b>a</b>) and the generated mesh (<b>b</b>).</p> "> Figure 6
<p>Obtaining theory of critical distances (TCD) parameters using the stress–distance curves.</p> "> Figure 7
<p>(<b>a</b>) Mesh employed in the FEA (finite element analysis) of the tubular beams; (<b>b</b>) detail of the notch tip.</p> "> Figure 8
<p>Load–displacement curves of some of the fracture tests.</p> "> Figure 9
<p>Load–displacement curves of the different tubular beam.</p> "> Figure 10
<p>Stress–distance curves at critical load in SENB specimens. The solid circles correspond to the cutoff points.</p> "> Figure 11
<p>Stress–distance curves in tubular beams when applying a unit load (1 N) at the free end.</p> "> Figure 12
<p>Comparison between the experimental results (LBCexp) and the resulting estimations (LBCest).</p> ">
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
3. Results
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
---|---|---|---|---|---|---|---|---|
0.30–0.60 | 0.10–0.30 | ≤0.10 | ≤0.10 | 0.35–0.60 | ≤0.05 | ≤0.15 | ≤0.10 | balance |
Tube | Material | Ø | B | D | L | 2a | ρ |
---|---|---|---|---|---|---|---|
AL1 | AL6060-T66 | 312 | 6.0 | 30.4 | 1451 | 27.2 | 0.8 |
AL2 | AL6060-T66 | 312 | 6.0 | 27.0 | 1448 | 27.2 | 1.5 |
AL3 | AL6060-T66 | 260 | 5.0 | 21. | 1452 | 45.3 | 0.8 |
Material | E (MPa) | σ0.2 (MPa) | σu (MPa) | εmax (%) |
---|---|---|---|---|
AL 6060 | 70,750 ± 554 | 215.0 ± 1.7 | 264.4 ± 1.8 | 11.60 ± 0.31 |
Material | Specimen | ρ (mm) | Defect Length (mm) | Critical Load (N) | KNmat (MPa∙m1/2) |
---|---|---|---|---|---|
AL6060-T66 | 0-1 | 0 | 4.23 | 1208.8 | 51.89 |
0-2 | 4.62 | 1341.6 | 59.42 | ||
1-1 | 1 | 5.00 | 1235.8 | 96.53 | |
1-2 | 5.00 | 1236.2 | 92.62 | ||
1-3 | 5.00 | 1226.7 | 103.56 | ||
2-1 | 2 | 5.00 | 1296.1 | 125.49 | |
2-2 | 5.00 | 1259.2 | 116.47 | ||
2-3 | 5.00 | 1259.2 | 130.03 |
Tube | L (mm) | σo (MPa) | LBCexp (kN) | LBCest (kN) |
---|---|---|---|---|
AL1 | 0.22 | 920 | 72.65 | 76.67 |
AL2 | 72.75 | 87.62 | ||
AL3 | 42.86 | 39.15 |
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Sánchez, M.; Cicero, S.; Arroyo, B.; Álvarez, J.A. Coupling Finite Element Analysis and the Theory of Critical Distances to Estimate Critical Loads in Al6060-T66 Tubular Beams Containing Notches. Metals 2020, 10, 1395. https://doi.org/10.3390/met10101395
Sánchez M, Cicero S, Arroyo B, Álvarez JA. Coupling Finite Element Analysis and the Theory of Critical Distances to Estimate Critical Loads in Al6060-T66 Tubular Beams Containing Notches. Metals. 2020; 10(10):1395. https://doi.org/10.3390/met10101395
Chicago/Turabian StyleSánchez, Marcos, Sergio Cicero, Borja Arroyo, and José Alberto Álvarez. 2020. "Coupling Finite Element Analysis and the Theory of Critical Distances to Estimate Critical Loads in Al6060-T66 Tubular Beams Containing Notches" Metals 10, no. 10: 1395. https://doi.org/10.3390/met10101395