摘要
本文利用缺陷规范场理论给出有效临界扩展力,并且从理论上分析了有效临界扩展力的对数值是断口分形维数的线性函数的合理性,澄清了分形用于断裂韧性研究中存在的不定性问题。
Using gauge field theory of defects, the effective critical extensionforce in elastic-plastic fracture mechanics was given. The rationality of logarithmof effective critical extension force as a linear function of the fractal dimensionali-ty of the fracture was analyzed in theory. The explanation in approach to studyingmaterial toughness using the fractal has been clarified.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第2期A145-A149,共5页
Acta Metallurgica Sinica
关键词
分形维数
临界
扩展力
缺陷规范场
defect gauge field
fractal dimensionality
critical extension force
