摘要
表明裂纹扩展过程中在裂尖处由于塑性流变变形而造成温度场,它形成如下的热-力耦合的循环关系:变形→能量耗散→内部耗散热→温度场→变形.实验结果证明,内部耗散热源的影响不可忽略。
This paper shows that the temperature field is created bythe plasto-rheological deformation at the crack-tip during the processof crack growth,and it has been made that the thermo-mechanicalcoupled circular relation:deformation→dissipation of energy→innerdissipative heat→temperature field→deformation.It has been provedby experimental evidence that the effect of the inner dissipative heatsources is noticeable and regardful.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1992年第1期44-50,60,共8页
Natural Science Journal of Xiangtan University
基金
中国国家自然科学基金会
美国国家科学基金会
中国科学院非线性连续介质力学开放实验室共同资助项目
关键词
能量耗散
裂尖
温度场
裂纹扩展
dissipation of energy/plasto-rheological zone at-thecrack-tip
inner dissipative heat sources
temperature field at the crack-tip
thermo-mechanical coupled relation
