自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 5    No. 2    December 1998

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EXPERIMENTAL AND THEORETICAL STUDY OF STATIC-DYNAMIC MIXED MODE BRITTLE FRACTURE OF ROCK
Li Zhenzi1 Lin Guoxiang1 Xu Jicheng1 Zhang Jingyi1 Luo Zhang1 Zhou Hongbin2 Li Huijian2

1.Department of Architecture Engineering, Central South University of Technology,Changsha 410083,China;
2.Department of Civil Engineering,Yan-shan University,Hebei 066004,China

Abstract:A new criterion of static-dynamic state mixed mode brittle fracture initiation in rock is suggested, i.e. the distortion strain energy criterion.Whent→∞, the static-state distortion strain energy criteria and the formula for determiming static-state fracture angle are obtained. The new static-state criterion, suggested by authors, is in good agreement with the author′s experimental results. In addition, the relative accuracy of three current fracture theories and the new criterion in predicting static-state mixed-mode initiation fracture loading and fracture angle in rock have been evaluated experimentally.

 

Key words: static-dynamic; mixed-mode fracture; rock

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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