ISSN:
1573-9325
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A method is proposed for raising the fatigue strength of a construction by inducing residual stresses by local heating with a high-power pulsed laser. Fatigue failure can be slowed or eliminated, as can the formation of fatigue defects, if a pattern of compressive residual stresses is produced in the most readily damaged zones. Experiments have been done on how laser heating affects the fatigue strengths of planar specimens and fatigue crack growth. Finite-element calculations have been used to examine the effects of the heating parameters on the residual stresses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02216035
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