March 25, 2021 at 1:19 pm

Rameez_ul_Haq

Subscriber

Array, After solving the system of equations, the displacements become known and the strain-displacement equation is used to recover the strains and the stress-strain equation is used to recover the stress. strains and stresses of what? Of the same nodes within the model whose displacements were first found out? If yes, then why there is a need for shape functions to find stresses at the nodes (using guass points) when we can already find the strains of all the nodes using strain-displacement equations and stresses of all the nodes using stress-strain equation?n