Abstract: The objective of this work is to develop a new material model to simulate the fracture behavior of structural plate with hole. Plates are subjected to different types of loading like tension, compression, bending or any combination of these. These different types of loading situation may initiate and propagate a crack. The issue of crack detection and fracture has gained wide spread industrial interest. Crack or damage affects the industrial economic growth. Generally crack in a structural element may occur due environmental defects and during manufacturing of the plates. A finite element based two dimensional crack propagation simulator software ANSYS is used for the analysis. Finite element analysis was employed to simulate the fracture behavior of the plate with inclined crack. The stress intensity factor is an important parameter for estimating the residual life in cracked structures. To determine the mixed-mode stress intensity factors quarter-point (Q-P) singular finite elements are employed. Crack growth depends on the initial crack length, material properties and dimensions, loading conditions etc. So Load versus crack length increase and load versus potential energy are calibrated.
Keywords: stress intensity factor, mixed-mode, quarter-point and singular elements.