Crack propagation evaluation using virtual prototyping techniques

Abstract

A methodology for crack propagation using virtual prototyping (VP) is demonstrated. It is based on a classical approach to assess crack propagation, improved with finite element analysis tools. It enables to examine in detail all aspects of crack formation and to evaluate the probability of its occurrence. Performed demonstration is based on Al2O3 substrate laser scribing process and its assessment in direction of possible crack occurrence. Presented study gives basic directions on application of virtual prototyping in crack initiation and propagation prediction. This approach gives the opportunity to monitor various parameters as stresses and to predict influence of various design changes over examined physical process output parameters.