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Article
Experimental Testing of Bend-Twist Coupled Composite Shafts
Bend-twist coupling is a property of certain specially designed composite beams that when subjected to loading conditions that would normally result in pure bending, undergo both bending and twisting. This phe...
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Article
A Novel Method for Dynamic Short-Beam Shear Testing of 3D Woven Composites
A new test method for performing dynamic short-beam shear tests using a momentum trapped Hopkinson pressure bar is proposed. Angle-interlock 3D woven composite specimens were tested under quasi-static and dyna...
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Article
Optimization of functionally graded metallic foam insulation under transient heat transfer conditions
The problem of minimizing the maximum temperature of a structure insulated by a functionally graded metal foam insulation under transient heat conduction is studied. First, the performance of insulation design...
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Article
Multi-fidelity design of stiffened composite panel with a crack
Crack propagation is an important concern in the design of aircraft composite fuselage and wing panels. However, numerical simulation of crack propagation is computationally expensive. This work proposes combi...
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Article
Optimizing energy absorption in multi-layered materials through controlled delamination
The intent of this paper is to investigate the mechanics of delamination growth in an isotropic, ideally-brittle layered material under an impact load and to present guidelines for the design of more energy ab...
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Chapter
Optimization of Composite Structures Using Response Surface Approximations
Response surface techniques have been originally developed for improving designs based on testing in the laboratory or the field. These techniques fit simple functions, typically low order polynomials, to the ...
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Chapter and Conference Paper
A Mechanistic Model for Attrition of Particles in Flow Systems
Particle-particle contact affects many industrial systems such as powder processing, particle handling, and slurry flows. The control of fracture processes during contact is the key to the success of these sys...
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Chapter and Conference Paper
Axisymmetric Contact Between a Rigid Sphere and a Layered Plate
The problem of axisymmetric contact between a rigid sphere and a circular layered plate is solved by using the finite difference method. The shear stress distribution in the vicinity of contact deviates consid...