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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.