Abstract: Failure in industrial term is known as not to perform the intended or desired work. For a design engineer it is very important that a part does perform its intended job efficiently and more reliably. In nuclear power plant there are various pipe lines which carries pressurized fluid and with time under certain conditions these repeated and cyclic loads can cause a fracture inside the pipe wall. Design engineer has to ensure that condition like this doesn’t occur frequently because there are so much at the stake. Now these fracture will occur because of the constantly repeating cyclic loads but measuring the extent to which a pipe can function properly can make a very big difference. System level computer modeling of complex nuclear system is increasingly becoming trend due to availability of advanced computer programs and multi processer based parallel computing hardware and software[1]. Computer based fracture analysis helps in mechanics of the material and computing the different area of the fracture growth.