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Title: Methode De La Fleche Methods De La Source Des Contraintes Residuelles
Author: Niku-Lari, A.
Source: Conf Proc: ICSP-1, (p.237-247)
Publication year 1981
Document number: 1981051
Number of pages: 11
Abstract:
Two methods of stress analysis are discussed. The so-called bending deflection method is a measurement procedure while machining away successive layers of metal. Its
simplicity of use and numerous potential applications in industry make it a valuable procedure. Its sensitivity allows the determination of the stress gradient changes
under the influence of minor modifications in treatment conditions. The so-called stress source method implies modelizing of the residual stress formation phenomena. For
the case of shot-peening (A1 AG3 and steel SC70) the model developed at CETIM gave way to simple formulas for the calculation of the max. stress and the surface stresses
with good approximation. Based upon these formulas, charts have been drawn for shot peening which allow the direct determination of these stresses when the following
parameters have been measured: deflection of specimen after shot peening and depth of plastically deformed layer of metal.
Descriptors: Aluminum base alloys-- Mechanical properties; Carbon steels-- Mechanical properties; Stress analaysis; Shot peening; Residual stress
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