Question

For the element described in Problem 10.36, determine the element nodal force vector as a result of the following prestress: sxx0 ¼ 800 psi, syy0 ¼ 500 psi, and sxy0 ¼ 750 psi. Assume the element to be in a state of plane stress. (take any triangular element or write the formula only).

Answer 1

Nodal forces :

Nodal forces are concentrated forces acting on the nodes which are equivalent statically to the boundary stresses and distributed loads on the element.