Re: Inverse Neumann boundary condition

s_saletic wrote:
> I have to numerically solve equetions of equilibrium of an elastic
> defromable body (in 2d space). One part of the outer surface is free
> of surface forces, which means Sigma*n=0, and other part is with
> prescribed displacement, which means u=0.
>
> As I have to solve system of three equations (2 of equilibrium + 1 of
> stress compatibility) I have to express boundary condition for
> zero-displacement as a function of stresses.
>
> As it is possible to go in this direction: stress -> Hook's law ->
> strain -> integration -> displacement, I must ask someone to help me
> to formulate boundary condition u=0 in term of stresses.

Since this problem is so much easier to solve using displacement as the
unknown, why do you want to use stress?



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Relevant Pages

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