中国物理B ›› 1997, Vol. 6 ›› Issue (8): 578-588.doi: 10.1088/1004-423X/6/8/003

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

A STATISTICAL THEORY OF CREEP FRACTURE

许汇颖, 邢修山   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:1996-10-15 出版日期:1997-08-20 发布日期:1997-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

A STATISTICAL THEORY OF CREEP FRACTURE

XU HUI-YING (许汇颖), XING XIU-SAN (邢修山)   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • Received:1996-10-15 Online:1997-08-20 Published:1997-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： A theory of creep fracture has been constructed by means of the concept and the method of nonequilibrium statistical physics. In this paper, the cavity evolution equation is given; the cavity distribution function, the cavity distribution probability, the creep fracture life of materials and the famous Monkman-Grant empirical relation are derived on the basis of the two mechanisms of the constrained cavity growth and the unconstrained cavity growth, respectively.

Abstract: A theory of creep fracture has been constructed by means of the concept and the method of nonequilibrium statistical physics. In this paper, the cavity evolution equation is given; the cavity distribution function, the cavity distribution probability, the creep fracture life of materials and the famous Monkman-Grant empirical relation are derived on the basis of the two mechanisms of the constrained cavity growth and the unconstrained cavity growth, respectively.

中图分类号:  (Fracture mechanics, fatigue and cracks)

  • 46.50.+a
62.20.M- (Structural failure of materials)