Blog posts

FEM simulation of residual stresses and plastic deformation induced by laser peening or shot peening superficial treatment

Submitted by mounir_frija on Tue, 05/06/2008 - 14:36

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.

How to write the transfer function of mechanic systems in C language?

Submitted by Xianfeng Ye on Tue, 05/06/2008 - 02:08

I have finished building the transfer function model of mechanic systems in MATLAB. But now if I am going to write the model in C language, what could I do? Any hints, fire are welcome!

Surface Stress Effects on the Resonant Properties of Silicon Nanowires

Submitted by Harold S. Park on Fri, 05/02/2008 - 19:14

Abstract of paper recently accepted for publication in Journal of Applied Physics:

how to model bones using abaqus

Submitted by nina333 on Fri, 05/02/2008 - 13:20

research

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

Submitted by Ning Wang on Fri, 05/02/2008 - 11:40

research

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.

Theory about orthotropic plate

Submitted by Noel Dioyan on Fri, 05/02/2008 - 11:06

Orthotropic plate

Anyone can provide a comprehensive lecture about orthotropic plate theory.

Postdoc position available at MIT / Hierarchical nanomechanics of amyloid protein materials

Submitted by Markus J. Buehler on Thu, 05/01/2008 - 10:36

Review paper by Professor Jerry Ericksen on Cauchy-Born rule; Special issue on scale effects---freely available for a month

Submitted by Pradeep Sharma on Thu, 05/01/2008 - 02:50

research

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).

Postdoctoral position in Multiscale Modeling

Submitted by marisolkoslowski on Wed, 04/30/2008 - 17:56

The Computational Solid Mechanics group under the direction of Prof. Marisol Koslowski in the School of Mechanical Engineering at Purdue has an opening for a postdoctoral position in the area of multiscale modeling as part of the project “Plasticity in ultrafine grained materials” funded by DOE. A successful candidate is expected to have a strong background in computational solid mechanics and programming experience. While experience in plasticity using dislocation dynamics or phase field methods is a plus, all outstanding candidates will be considered.

Coupling meshfree and Finite element methods

Submitted by Rajathachal.MK on Wed, 04/30/2008 - 09:17

research

meshfree 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.

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