引張変形を受ける熱粘弾塑性中実丸棒の変形の局所化

概要

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In the present investigation, the material strain rate and temperature sensitivities are incorporated into a numerical simulation of cylindrical bars subjected to uniaxial tension. The analysis is based on a thermo-elasto-viscoplastic version of the rate-dependent constitutive equation where the viscoplastic strain rate has a component noncoaxial with the stress tensor. The effects of the deformation rate, heat conduction, and size of the block on flow localization, including the shear band-type flow localization, are clarified in a full axisymmetric finite-element analysis of velocity and temperature fields. The comparison between the present results and those for the plane strain condition will clarify the influence of the stress system applied on the flow localization.
一般社団法人日本機械学会の論文
1991-07-25