Nondestructive estimation of remaining fatigue life: Thermography technique

Document Type

Article

Publication Date

12-1-2012

Abstract

A technique for the estimation of remaining fatigue life (RFL) of metallic specimens when subjected to cyclic load is presented. The procedure includes evaluation of thermal response of the metal and its correlation with the fatigue life. Results are presented for a series of fully reversed fatigue tests with Stainless Steel 304L at room temperature. It is demonstrated that the slope of temperature rise as a function of time is a good candidate for estimation of RFL. Once the temperature slope is measured, the remaining useful life of the specimen can be effectively estimated. © ASM International 2012.

Publication Source (Journal or Book title)

Journal of Failure Analysis and Prevention

First Page

683

Last Page

688

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