Fatigue Damage Initiation in Waspaloy Under Complex Cyclic Loading

[+] Author and Article Information
A. Abdul-Latif

GIM/ERBEM, IUT de Tremblay, 93290 Tremblay-en-France, France

V. Ferney, K. Saanouni

GSM/LASMIS, Université de Technologie de Troyes, B.P. 2060, 10010 Troyes Cedex, France

J. Eng. Mater. Technol 121(3), 278-285 (Jul 01, 1999) (8 pages) doi:10.1115/1.2812376 History: Received April 14, 1998; Revised August 07, 1998; Online November 27, 2007


The low-cycle fatigue damage initiation in Waspaloy under complex cyclic loading (out-of-phase) is studied from experimental and theoretical viewpoints. Special emphasis is put on the transgranular damage development and results are compared to those reproduced in the literature. A physico-phenomenological model based on slip theory is used to predict the damage initiation lives as well as the directional aspect of the damage distribution. In this model, the micro-damage is supposed to initiate and then evolve on the activated crystallographic slip systems. The theoretical results are compared to both the experimental ones concerning the same material (Waspaloy) as well as other experimental results extracted from the literature.

Copyright © 1999 by The American Society of Mechanical Engineers
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