On the failure condition in strain-controlled low cycle fatigue

Bhanu Sankara Rao, K. ; Valsan, M. ; Sandhya, R. ; Ray, S. K. ; Mannan, S. L. ; Rodriguez, P. (1985) On the failure condition in strain-controlled low cycle fatigue International Journal of Fatigue, 7 (3). pp. 141-147. ISSN 0142-1123

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/014211...

Related URL: http://dx.doi.org/10.1016/0142-1123(85)90024-6

Abstract

Axial-strain controlled low cycle fatigue tests were performed on several materials in different metallurgical conditions using various test-piece geometries, strain ranges, temperatures and frequencies in order to arrive at a proper choice for the definition of failure. Several alternative failure criteria proposed in the literature were examined in terms of load response measurements and the shape of the hysteresis loop in the compressive portion of the cycle. A 20% fall in the saturation stress in tension and cusp formation in the compressive portion of the cycle have been identified as the two best criteria for defining the failure life of laboratory specimens in strain-controlled low cycle fatigue testing.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Low Cycle Fatigue; Strain Control; Failure Criteria; Austenitic Stainless Steels
ID Code:18270
Deposited On:17 Nov 2010 12:52
Last Modified:18 May 2011 06:56

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