摘要
利用弹粘性模型，对Ⅰ型扩展裂纹的渐近问题进行了研究．通过对裂纹扩展问题的分析，给出了所有渐近解的形式．分析结果表明，准静态解仅仅是动态解的一种特殊形式，解的统一性得到了充分证明．
The asymptotic problem of mode Ⅰ propagating crack-tip field is investigated using an elastic-viscoplastic model. The forms of all asymptotic solutions are given through the analsis of crack growing problems. Results show quasi-statically growing crack solutions are the special case of the dynamic propagating solutions. Identical asymptotic solutions are therefore given.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
1999年第2期11-13,共3页
Journal of Harbin Institute of Technology
基金
中船总国防预研基金
关键词
裂纹尖端场
渐近分析
裂纹扩展
蠕变材料
Elastic-viscoplastic matetial
viscosity coefficient
quasi-static growth
dynamic propagating
