Torque about ankle from tibialis anterior after heel strike
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FEM simulation of residual stresses and plastic deformation induced by laser peening or shot peening superficial treatment
Laser shock peening (LSP) is an innovative surface treatment technique, which has been successfully applied to improve fatigue performance of metallic components. The key beneficial characteristic after LSP treatment is the presence of compressive residual stresses beneath the treated surface of metallic materials, mechanically produced by high magnitude shock waves induced by a high-energy laser pulse. Finite element analysis method has been applied in order to predict the residual stresses and plastic deformation induced by LSP.
Surface Stress Effects on the Resonant Properties of Silicon Nanowires
Abstract of paper recently accepted for publication in Journal of Applied Physics:
how to model bones using abaqus
I am a new ABACUS user and i would like to model a shoulder bones with applying muscles forces on it. I hope if any one has an idea of applying finite element as well that will be great.
A unique feature of mechanotransduction is revealed
It is generally believed that similar to soluble ligand-induced signal transduction, mechanotransduction initiates at the local force-membrane interface (e.g., at focal adhesions) by inducing local conformational changes or unfolding of membrane-bound proteins, followed by a cascade of diffusion-based or translocation-based signaling in the cytoplasm. However, all published reports, including past studies with the reporter type of construct extended here, were limited in timescale to address this fundamental issue.
Review paper by Professor Jerry Ericksen on Cauchy-Born rule; Special issue on scale effects---freely available for a month
Xin-Lin Gao and I had the pleasure of guest-editing a special issue on "scale effects in mechanics" for the journal, Mathematics and Mechanics of Solids (editor: Professor David Steigmann , UC Berkeley).
Coupling meshfree and Finite element methods
I just wanted to know if i can consider one part of a FE model as a meshless part and form the global stiffness matrix just by assembling the meshfree stiffness matrix corresponding to the meshfree zone and the FE stiffness matrix of the rest. And then apply the boundary conditions to the model and solve. I would use RKPM to generate the meshfree stiffness matrix.
Journal Club Theme of 1 May 2008: Mechanical Behaviors of Polymer-matrix Nanocomposites
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1. Definition of nanocomposites Nanocomposites are a novel class of composite materials whose reinforcements have dimensions in the range of 1-100 nm. Although nanoscale reinforcements (or nanofillers) of nanocomposites have different kinds of fillers such as nanofibers, nanowires, nanotubes and nanoparticles etc, their mechanical behaviors have some common features.
Large deformation elasticity and damping of individual carbon nanotubes in radial direction
Carbon nanotubes as strong fibers in CNT-composites are subjected to large deformations in radial direction. They provide strength as well as structural damping in the composite. Despite being strong in the axial direction, CNTs are rather soft in the radial direction.