On the potential application of a numerical optimization of fatigue life with DoE and FEM

Author:  Miao, Levesque
Source:  Conf Proc 2011: ICSP-11 South Bend, IN USA (pgs. 411-416)
Doc ID:  2011069
Year of Publication:  2011
Abstract:  
Abstract Shot peening is a complicated and expensive process and many shot peening parameters have an influence on the improvement in fatigue performance. Design of Experiment (DoE) has become a very useful tool to optimize the process by considering the greatest amount of information. With the development of computer ability, the Finite Element Method (FEM) has been widely used to simulate this dynamic shot peening process. The Navarro-Rios model has been well developed for the prediction of the fatigue life after shot peening. Therefore, the objective of this work is to integrate these tools in order to establish a numerical OFDF system (Optimisation Fatigue life with DoE and FEM). With this system, it is possible to simulate the shot peening process, to predict the fatigue life of the shot peened component and to optimize the controlled shot peening process. Keywords Shot peening, Almen intensity, fatigue life, DoE, N-R model, FEM