衝撃負荷逆負荷に適用できる動的構成式について : アルミニウム材の実験値との比較

概要

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In this paper, a dynamic constitutive equation that is applicable for impact loading and inverse loading was investigated. The numerical calculation was done for aluminum using finite difference method under the boundary condition of measured axial and angular velocities. The calculated stress and strain agreed well with the experimental ones under torsional and inverse torsional loadings about the strain rate of 40 l/s. The comparison of calculated result with experimental one for the combined loadings of impact tension and torsion was also performed, and the validity of this constitutive equation was verified. Moreover, the appearing yield points were discussed based on some simulations under two-stage combined loadings of tension and torsion.
社団法人日本機械学会の論文
2003-06-25