Application of the Eigenstrain Theory to Predict Residual Stress around Curved Edges after Laser Shock Peening

Abstract:

Residual stresses play a fundamental role in mechanical engineering. They can be generated by manufacturing processes or introduced purposely by surface treatment technologies. One of the most recent technologies developed to introduce residual stresses is Laser Shock Peening. Since it is a relatively expensive technology, a fundamental role is played by the Finite Element Analysis approach to predict the final residual stress profile. The FEA approach consists of either direct simulation of the LSP process or the application of the eigenstrain approach. The application of the eigenstrain theory in predicting residual stresses after LSP treatment in curved edges is the subject of this research.

• Periodical: Materials Science Forum (Volumes 768-769)
• Pages: 185-192
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.768-769.185
• Online since: September 2013
• Authors: Stefano Coratella, M. Burak Toparli, Michael E. Fitzpatrick
• Keywords: Curved Edge, Eigenstrain, Laser Shock Peening, Residual Stress

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