Measurement of fatigue crack closure through electron microscopy

Sunder, R and Dash, PK (1981) Measurement of fatigue crack closure through electron microscopy. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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Abstract

A technique is proposed for estimation of crack opening stress during fatigue crack growth. It involves electron fractography of fracture surfaces obtained under specially designed load sequences. The technique was experimentally validated on an Al-Cu alloy. The experimental data bear evidence to fatigue crack closure. They also indicate that fatigue crack closure is uneven across the specimen thickness.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Tress;Fatigue;Crack growth;Load sequences
Subjects: CHEMISTRY AND MATERIALS > Metals and Metallic Materials
Depositing User: Users 90 not found.
Date Deposited: 03 Nov 2006
Last Modified: 24 May 2010 04:22
URI: http://nal-ir.nal.res.in/id/eprint/3164

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