摘要
提出塑性损伤变量的定义，它由反映微空隙群的材料相对体积膨胀来表征．从理论上导出了塑性损伤变量Ｄｐ 与经典连续损伤力学中弹性损伤变量Ｄｅ＝ １－ Ｅ／Ｅ 之间的关系．根据此关系。
A new plastic damage variable is proposed, which is characterized by relative volume expansion reflecting micro voids in material. The relationship between the plastic damage variable D p and the elastic damage one D e= 1-/E , by classical Continuum Damage Mechanics, is derived. The basis of this relation, the propagation of damage variable in longitudinal tensile process for polymer material HIPS is determined using experimental technique.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第9期1-3,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
塑性损伤变量
弹性损伤变量
空隙群损伤
plastic damage variable
elastic damage variable
voids damageShen Wei Prof.
Dept. of Mechanics, HUST, Wuhan 430074, China.
