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Versatile analysis of limited plasticity by body force method

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Abstract

A problem of thermally induced residual stress under plane strain constraint is considered based on a body force method (BFM). As a numerical example, a simple problem of limited plasticity due to a uniform strength of transient line heat source of finite width, which is applied to a surface of a semi-infinite solid for a short duration of time, was considered. Although the out-of-plane component of normal stress (σ zz ) can be simply estimated from the in-plane normal stress components σ xx , σ yy and the Poisson’s ratio ν as σ zz  = ν(σ xx  + σ yy ) for elastic plane strain problems, this relation is violated when plasticity is considered. As a result, the residual stress in the direction of out-of-plane found to be a major component in the present problem.

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Correspondence to Akihide Saimoto.

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Saimoto, A., Imai, Y. Versatile analysis of limited plasticity by body force method. Acta Mech 214, 185–194 (2010). https://doi.org/10.1007/s00707-010-0328-3

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  • DOI: https://doi.org/10.1007/s00707-010-0328-3

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