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Weak form

rohan_patel8388's picture

Meaning of Weak form use in Finite element Method

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 I am a Computational Mechanics Student. I always come across during class of Finite Element Methods. I want to know what does actual mean by "Weak Form"? IAnd What are we take Test Function while using in Galerkin Method?



Coupled differential equations + Weak form and Least square form

If there are two coulpled diffrential equations , say f1(u,e) anf f2(u,e) ?

Now i can solve these either by weak form or minimizing least square form .

Is it possible to solve f1 by least-square and f2 by weak form ? 

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