Proceedings of the Institution of Mechanical Engineers - Part C, ( ISI ), Volume (224), No (4), Year (2010-3) , Pages (777-787)

Title : ( Elastic follow-up and relaxation of residual stresses )

Authors: David J Smith , Saeid Hadidi Moud , James McFadden , A J Smith , A J Starmonth-Darling , A A Aziz ,

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Abstract

A series of experiments were undertaken using a multiple bar assembly to measure elastic follow-up and relaxation of an initial residual stress. A test rig was designed to permit different levels of elastic follow-up to occur. The general features of the experimental results confirmed predictions provided by simple models. The most reliable measure of elastic follow-up was obtained by measuring the relaxation of the initial residual stress. The rate of relaxation of the residual stress is found to be proportional to the elastic follow-up factor.

Keywords

, Elastic follow-up, residual stress, stress classification, integrity