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Crash Test Bench
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Hi I am working on the designing of a crash test bench to measure vehicle door intrusions ?
Could some one provide me basic ideas on the test bench set up and how to mout the door on the test rig and which degrees of freedom to lock ?.
A novel self-locked energy absorbing system
http://dx.doi.org/10.1016/j.jmps.2015.11.008 Metallic thin-walled round tubes are widely used as energy absorption elements. However, lateral splash of the round tubes under impact loadings reduces the energy absorption efficiency and may cause secondary damages. Therefore, it is necessary to assemble and fasten round tubes together by boundary constraints and/or fasteners between tubes, which increases the time and labor cost and affects the mechanical performance of round tubes. In an
Predictive Theoretical and Computational Approaches for Additive Manufacturing
On October 7-9, 2015, the U.S. National Committee on Theoretical and Applied Mechanics (USNC/TAM) held a Workshop on Predictive Theoretical and Computational Approaches for Additive Manufacturing in Washington, DC. The three-day workshop featured 24 presentations from speakers in academia, industry, and government labs.
On the overall yield function of a hollow sphere
Motivated mostly by analytical (or formal) considerations, a vast majority of the works dedicated to the study of the overall plastic response of a porous metal assumes that the sound material (or matrix) obeys a quadratic yielding criterion (von Mises or Hill'48). However, most metals of technological interest today feature significant deviations from the quadratic form of yielding. Therefore a realistic modeling of their behavior, while sustaining damage, requires appropriate consideration of their yielding properties.
Bonds, bands and elasticity of smithsonite rock
The objective here is to spread out in detail the various fundamental state properties of smithsonite rock (ZnCO3) for which the most intrinsic quantities remain still unknown. First-principles electronic structure calculations based on the density functional theory with the pseudopotential method were performed using diverse functionals. A number of mechanical quantities were evaluated such as bulk modulus, elastic constants, Young's and shear moduli, and transversal and longitudinal sound velocities (VS and VP).
Computational analysis of metallic nanowire-elastomer nanocomposite based strain sensors
Possessing a strong piezoresistivity, nanocomposites of metal nanowires and elastomer have been studied extensively for its use in highly flexible, stretchable, and sensitive sensors. In this work, we analyze the working mechanism and performance of a nanocomposite based stretchable strain sensor by calculating the conductivity of the nanowire percolation network as a function of strain. We reveal that the nonlinear piezoresistivity is attributed to the topological change of percolation network, which leads to a bottleneck in the electric path.
Journal of Dynamic Behavior of Materials finishes its first year
The December Issue of JDBM is now available, completing the first year of this new journal sponsored by the Society for Experimental Mechanics. Springer is making all papers freely available for the first two years. http://link.springer.com/journal/volumesAndIssues/40870
