Abstract
Fatigue failure is typically driven by component geometric requirements that result in local areas of high tensile loading stress. Within this paper we discuss the deep protective stress generated by laser peening and show examples of using a newly developed finite element predictive strain and stress tool that accurately models laser peening. The analysis tool and robust process enable the accurate engineering of local compressive stress into critical areas of diverse/all(?) ferrous and non-ferrous materials in a well-defined manner that significantly improves fatigue life and strength. This capability opens the potential for advanced designs with increased performance, enhanced reliability and reduced system weight.
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