Computer simulated analyses on deformation and fracture of non-cracked and cracked specimens
作者: Zhang KeshiZheng Changqing
作者单位: 1Northwestern Polytechnical University
刊名: Acta Mechanica Sinica, 1991, Vol.7 (3), pp.243-250
来源数据库: Springer Journal
DOI: 10.1007/BF02487592
关键词: damage and fracture modelfracture initiation and crack propagationlarge elastic-plastic deformationnumerical simulation
英文摘要: Abstract(#br)A unified damage and fracture model, the combinatory work density model, which is suitable for either non-cracked body or cracked body has been suggested [t−7] . In the present paper, the deformation and fracture of the two kinds of tensile spceimen and TPB specimen made of 40Cr steel have been simulated by using the new model together with the large elastic-plastic deformation finite element method. The results give a good picture of the whole deformation and fracture processes of the specimens in experiments; especially, the results on the TPB specimen can be used to obtain the relationship between load and displacement at the loading point P -Δ, and between crack extension and displacement at the loading point Δ a -Δ, the resistance curve J R -Δ a and the fracture...
全文获取路径: Springer  (合作)
影响因子:0.688 (2012)

  • fracture 断口
  • cracked 裂化的
  • simulated 模拟试验
  • deformation 应变
  • Computer 电脑