EXPERIMENTAL AND NUMERICAL ASPECTS OF ADIABATIC SHEAR IN A 4340-STEEL

被引:17
作者
DELTORT, B [1 ]
机构
[1] ETAB TECH CENT ARMEMENT,CREA,DGA,F-94114 ARCUEIL,FRANCE
来源
JOURNAL DE PHYSIQUE IV | 1994年 / 4卷 / C8期
关键词
D O I
10.1051/jp4:1994869
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Shear localization is analysed in dynamic torsion test with a new specimen design. The appearance of localized deformation is governed by the size of the initial defect in the sample. The defect consists of a small thickness reduction around the middle of the sample. An explicit model is used, based on the resolution of the governing thermo-mechanical equations, with heat transfer. The small difference that exists between the simulations and experiments is due to the metallurgical and surface defects, neither of which is accounted for in the model.
引用
收藏
页码:447 / 452
页数:6
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