Question: In considering the patch test, answer the following questions: (a) Can elements of different mechanical properties be used? Why? (b) Can the patch be arbitrary

In considering the patch test, answer the following questions:

(a) Can elements of different mechanical properties be used? Why?

(b) Can the patch be arbitrary in shape? Why?

(c) Can we mix triangular and quadrilateral elements in the patch test?

(d) Can we mix bar elements with triangular or quadrilateral elements? Why?

(e) When should the patch test be applied?

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