Introduction to Elasticity/Hu-Washizu principle

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Hu-Washizu Variational Principle[edit | edit source]

In this case, the admissible states are not required to meet any of the field equations or boundary conditions.

Let denote the set of all admissible states and let be a functional on defined by

for every .

Then,

at an admissible state if and only if is a solution of the mixed problem.