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2008 Summer Research Seminars on Mechanics of Materials

Submitted by Rui Huang on

Place: University of Texas at Austin, WRW 312

Time: Friday 3:00 - 4:30 pm, May 23 - August 22, 2008

Faculty advisors: Chad Landis and Rui Huang

Speakers: postdocs and graduate students, including guest speakers from other groups

Tentative schedule:

(Date, Seminar title, Speaker name, Group affiliation)

 

Bloch-periodic boundary conditions in classical and enriched FEM

Submitted by N. Sukumar on

In the attached paper (accepted for publication), we present enriched FE formulations to impose Bloch-periodic boundary conditions. Bloch-periodic BCs arise in the description of wave-like phenomena in periodic media: periodic composites, Schrodinger equation in quantum mechanics, photonic band-gap materials, etc. For a perspective, see the J-Club on elastodynamic bandgaps and metamaterials that was organized by Biswajit Banerjee

Meshfree/Meshless methods(MLPG)

Submitted by Neelesh.P on

I am using Meshless Petrov-Galerkin Method(MLPG) for non-rectangular domains. There is a flexibility of using any shape for weight function and also for local quadrature  domain. Here in my case case weight function domain and local quadrature domains are same.

 I want to know that  , for non-rectangular domains,how the different shapes of weight functions (specially circular or rectangular) will affect accuracy of the result  ?

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

Submitted by mounir_frija on

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.