Ramesh Malla
University of Connecticut, Civil and Enviromental Engineering, Faculty Member
Research Interests:
Research Interests:
Research Interests:
Research Interests:
An analytical and computational procedure has been developed to study the response of truss structures subject to member failure under static and dynamic loadings. Emphasis is given to the dynamic effects of member failure and the... more
An analytical and computational procedure has been developed to study the response of truss structures subject to member failure under static and dynamic loadings. Emphasis is given to the dynamic effects of member failure and the propagation of local damage to ...
Research Interests:
[4] Z.-H. Zhong, Finite Element Procedures for Contact-Impact Problems, Oxford University Press, 1993.[5] R. Malla and G. Anandakumar,“Force-Displacement Behavior of Activated Alumina Packed Beds For Water Processing Application In Space... more
[4] Z.-H. Zhong, Finite Element Procedures for Contact-Impact Problems, Oxford University Press, 1993.[5] R. Malla and G. Anandakumar,“Force-Displacement Behavior of Activated Alumina Packed Beds For Water Processing Application In Space Life Support Systems”, ...
Research Interests:
Research Interests:
Since the dawn of civilization, the civil engineering profession has served mankind. Civil engineers have provided humanity with safe, reliable, and economical facilities and a livable environment. This paper seeks to outline the... more
Since the dawn of civilization, the civil engineering profession has served mankind. Civil engineers have provided humanity with safe, reliable, and economical facilities and a livable environment. This paper seeks to outline the potential applications of various Earth-based ...
Research Interests:
This paper is the first part of a two-part general review paper on static and dynamic analysis methods, and special topics for the design of double-layer grids (DLGs). This work is part of a forthcoming report of the ASCE Task Committee... more
This paper is the first part of a two-part general review paper on static and dynamic analysis methods, and special topics for the design of double-layer grids (DLGs). This work is part of a forthcoming report of the ASCE Task Committee on Double Layer Grids. In this paper, the ...
Research Interests:
... Special thanks go to Mr. Boodey, Mr. Fura, Mr. David Hiscox (CT DOT), and Mr. Weykamp for coordinating to bring all the logistics together for (and being personally present at) the field installation of the sealants in their... more
... Special thanks go to Mr. Boodey, Mr. Fura, Mr. David Hiscox (CT DOT), and Mr. Weykamp for coordinating to bring all the logistics together for (and being personally present at) the field installation of the sealants in their states' bridges. ...
Research Interests:
Effects of initial conditions of axial deformation (length) and attitude (pitch) angle have been investigated on the subsequent orbital motion, attitude (librational) motion, and axial deformation (length) of a large space structure under... more
Effects of initial conditions of axial deformation (length) and attitude (pitch) angle have been investigated on the subsequent orbital motion, attitude (librational) motion, and axial deformation (length) of a large space structure under the action of the earth's gravitational force. The space ...
Research Interests:
Resilient modulus value of a subgrade soil is the primary property needed for pavement design and analysis. It is the elastic modulus based on the recoverable strain under repeated loads, and depends on several factors including soil... more
Resilient modulus value of a subgrade soil is the primary property needed for pavement design and analysis. It is the elastic modulus based on the recoverable strain under repeated loads, and depends on several factors including soil properties, soil type, and state of stresses. ...
Research Interests:
Papers in these proceedings cover many technology areas, including: Structures, Structural Vibrations, Dynamics and Controls, Smart Structures, Intelligent Sensors and Actuators, Exploration and Utilization of Extraterrestrial Bodies,... more
Papers in these proceedings cover many technology areas, including: Structures, Structural Vibrations, Dynamics and Controls, Smart Structures, Intelligent Sensors and Actuators, Exploration and Utilization of Extraterrestrial Bodies, Advanced Materials for Sustainable ...
Research Interests:
A critical component in the oxygen generation assembly for long term human habitation system in space is the de-ionizing (DI) bed - a packed bed of ion-exchange resin beads - that purifies water by removing ions (dissolved salts and... more
A critical component in the oxygen generation assembly for long term human habitation system in space is the de-ionizing (DI) bed - a packed bed of ion-exchange resin beads - that purifies water by removing ions (dissolved salts and organic impurities) from reclaimed water. The DI bed shrinks during the course of its operation. For the bed to work satisfactorily in microgravity environment, it is required that the bed is kept compressed and this is done with the aid of a compressed spring mechanism placed at one end. The objective of this current research work is to study the behavior of the full-scale DI bed experimentally in order to gain an understanding of how a force applied at one end is transmitted along the length of the bed and to determine an analytical model that fits experimentally obtained data. A series of experimental investigations was carried out in several lengths of full-scale DI bed made of Amberlite IRN- 78 ion exchange resin to determine load-deflection charact...
Page 1. Establish Subgrade Support Values for Typical Soils in New England (NETC 02-3) By Ramesh B. Malla, Ph.D. (Principal Investigator) Associate Professor Umashankar Balunaini, Graduate Research Assistant Department of Civil &... more
Page 1. Establish Subgrade Support Values for Typical Soils in New England (NETC 02-3) By Ramesh B. Malla, Ph.D. (Principal Investigator) Associate Professor Umashankar Balunaini, Graduate Research Assistant Department of Civil & Environmental Engineering ...
Effects of the differential gravitational forces have been investigated simultaneously on the orbital motion, attitude motion, and axial deformation of a very large axially flexible space structure executing planar pitch motion. Also,... more
Effects of the differential gravitational forces have been investigated simultaneously on the orbital motion, attitude motion, and axial deformation of a very large axially flexible space structure executing planar pitch motion. Also, included in the present study are the effects of total mass of the space system and attractive forces among concentrated masses present in the structure. It is observed that these parameters do not have appreciable effects on the structure's orbital motion, attitude motion, and axial length (deformation).
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In addition to causes, such as material defects and fabrication and construction errors, of structural failure, damage to space structures can come from such adverse events as impact by foreign objects, docking, drastic temperature... more
In addition to causes, such as material defects and fabrication and construction errors, of structural failure, damage to space structures can come from such adverse events as impact by foreign objects, docking, drastic temperature changes, and exposure to radiation and charged ...
Research Interests:
Large space structures, such as a space station operating in an orbital environment, are lightweight and very flexible. These structures consist of flexible beams and plates. They are likely to undergo large orbital displacements and... more
Large space structures, such as a space station operating in an orbital environment, are lightweight and very flexible. These structures consist of flexible beams and plates. They are likely to undergo large orbital displacements and rotations as well as large structural deformation. ...
Granular hard bed materials like activated alumina and magchem packed in cylindrical containers are used for removing volatile organic components from wastewater aboard the International Space Station. For proper packing in the... more
Granular hard bed materials like activated alumina and magchem packed in cylindrical containers are used for removing volatile organic components from wastewater aboard the International Space Station. For proper packing in the microgravity environment and to keep the bed ...
Research Interests:
Granular material beds have significant space application, especially in the Advanced Life Support Systems (ALSS). Long‐term space missions are possible by using ALSS that facilitate in successively recycling vital life sustaining... more
Granular material beds have significant space application, especially in the Advanced Life Support Systems (ALSS). Long‐term space missions are possible by using ALSS that facilitate in successively recycling vital life sustaining elements, like water, thereby ...
One of the most critical components in the oxygen generation assembly for long term human habitation system in space is the de‐ionizing (DI) bed ‐ a packed bed of ion‐exchange resin beads ‐ that purifies water by removing ions (dissolved... more
One of the most critical components in the oxygen generation assembly for long term human habitation system in space is the de‐ionizing (DI) bed ‐ a packed bed of ion‐exchange resin beads ‐ that purifies water by removing ions (dissolved salts and organic impurities) from ...
Research Interests:
Space structures, such as space station, solar arrays, deployable and inflatable structures are large and flexible. These structures undergo orbital rigid body motion and large structural deformations under space environmental loadings.... more
Space structures, such as space station, solar arrays, deployable and inflatable structures are large and flexible. These structures undergo orbital rigid body motion and large structural deformations under space environmental loadings. In this paper, a finite element ...
Structures in space experience large change in temperature when they are orbiting around the Earth as they travel through sun lit and Earth shadow regions. Furthermore, uneven thermal loading, such as thermal bending, occurs when one side... more
Structures in space experience large change in temperature when they are orbiting around the Earth as they travel through sun lit and Earth shadow regions. Furthermore, uneven thermal loading, such as thermal bending, occurs when one side directly faces the sun and the ...