Seminar tackles residual stresses

An Engineering Integrity Society product story
Edited by the Engineeringtalk editorial team Feb 27, 2006

Seminar addresses some of the problems associated with the effects of residual stresses in the design process and looks at modern methods of overcoming them.

The Engineering Integrity Society is holding a seminar called "Allowing for Residual Stresses in Design" at Mira, Nuneaton, on Wednesday 3rd May 2006.

This event addresses some of the problems associated with the effects of residual stresses in the design process and looks at some modern methods of overcoming them.

The day will be of direct benefit to engineering designers and those involved in developing and marketing high integrity products at low cost.

Components intended to carry loads often contain stresses before any loads are applied.

These residual stresses may have been caused by normal production processes such as forging or they may be deliberately introduced.

Either way, they can have significant effects on the performance of a component such as the fatigue life, springback during pressing and buckling resistance.

After an introduction to the basics, speakers will look at two of the most recent ways of approaching residual stresses: laser peening, which aims to create controlled residual stresses; and Maps, a technique for measuring such stresses.

Emphasis will then shift to applications with Norman Thornton of NCode International and Angelo Fanourakis of GKN Autostructures looking at the effect of residual strain on product life and manufacture and John Draper of Safe Technology addressing the inclusion of forming and assembly stresses in fatigue analysis from FEA.

Afternoon sessions major on fatigue crack propagation.

Two presentations deal with applying fracture mechanics to the problem of numerical life prediction and the last two reports, from Serco Assurance and British Nuclear Fuels, cover their experience in this field.

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