Jun 2, 2016 | No Comments | By Hosein Motamedi
1- The performance of the Embedded Finite Element Model (EFEM) is validated with analytical solution for the remotely loaded crack in an infinite sheet. The stress state around the crack tip is appropriately depicted using the adequately fine mesh sizes.
2- The existing EFEM is successfully extended to the fully transient range in order to capturing the dynamic crack propagation.
3- The semi-implicit integration algorithm has been employed to derive evolution equations and conditions in the discrete form. Therefore, the Newton-Raphson scheme is implemented in the code to solve the dynamic system of equations. This feature will help us later to solve the nonlinear dynamic equations in a robust manner.
4- The numerical performance of the upgraded code for dynamic analysis has been investigated with comparing the analytical and numerical results of dilation wave speed in the solids.