引張荷重下での切欠きおよび有孔ブロックの熱弾粘塑性変形挙動
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概要
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The deformation behaviors of thermo elasto-viscoplastic blocks with relatively sharp U-type notch, slit, and U-type notch with void, subjected to plane strain tension under mode-I loading have been investigated. These blocks have a relatively low strain rate sensitivity and comply with an elasto-viscoplastic constitutive equation which has a viscoplastic strain rate noncoaxial with the stress tensor. Attention has been paid to deformation with a strain rate in the range of 0.02-2/s. A full plane strain finite element analysis of the velocity and temperature fields has clarified the effect of deformation rate, material strain rate sensitivity and thermal conductivity on flow localization, including sharpening the notch tip and coalescence of the notch and void.
- 一般社団法人日本機械学会の論文
- 1991-07-25
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