The set of finite element equations of motion of an initially stressed elastic solid is derived by using the principle of virtual displacement. And this is compared with what obtained from Hamilton's principle.
The set of equations of motion is appli...
The set of finite element equations of motion of an initially stressed elastic solid is derived by using the principle of virtual displacement. And this is compared with what obtained from Hamilton's principle.
The set of equations of motion is applied to an initially stressed fixed-free plate strip on the sudden lateral loading condition at the free end.
By comparing numerical result, we shall examine the effect of incremental stresses, and the selective reduction of the order of Gauss-Legendre quadrature.