摘要
探讨了饱和强化粘塑性介质中的动态损伤演化规律，给出了损伤演化微分方程。利用动态破碎的能量描述，确定了动态破碎碎块平均尺寸与材料孔隙度的定量关系。最后给出了动态损伤与破碎规律的数值结果。
The evolution rule of dynamic damage in saturated strain-hardened viscoplstic materials is investigated and the evolution equation of damage is proposed. The quantitative relation between dynamic nominal fragment size and porosity is developed by employing the energy description of dynamic fragmentation.Numerical results on damage and fragmentation rules are obtained.
出处
《材料科学与工艺》
CAS
CSCD
北大核心
1996年第3期6-10,共5页
Materials Science and Technology
基金
国家自然科学基金
关键词
饱和强化
粘塑性
损伤
细观力学
Saturated strain-hardening
viscoplasticity
damage
fragmentation
mesomechanics
