Weak form boundary condition, a problem of mechanics.
As i tried to do the poroelastic simulation in PED , weak form, i firstly built up the weak equation for linear elastic part. All ran fine, and was tested and compared with results obtained in Solid...
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I think I may had the answer: 1. the equations and weak forms were all right 2. notice that: several operators can be used for derivative, as ux, d(u,x), dtang(u,x), tec. Although I can't quite tell...
View ArticleRe: Weak form boundary condition, a problem of mechanics.
I inspected the results: displacement=sqrt(u^2+v^2) stress along x: sigma_x = D*(ux+mu*vy) (here both ux, and d(u,x) get the right result) von mises stress (equivalent stress): =...
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