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2007年03月09日

【期刊论文】Experimental Verification of Geometric Criterion of Damage and Fracture by Grating Methods

崔希民， Cui Ximin， Chen Zhida

Journal of China University of Mining & Technology Dec., 1998, Vol. 8, No. 2，-0001，（）：

-1年11月30日

摘要

Micro cracking in solid material is a phenomenon of solid plane bifurcation with incompatible micro-rotation. Therefore it is important to analysis the micro-rotation field in a strained material in fractute mechanics. On the basis of strain-rotation (S-R) decomposition theorem, the geometric criterion of cracking has been established. In order to verify its validity, using grating experimental method the thin compact tension specimens were investigated. The analysis results show a good agreement between the experimental and geometric criterion.

strain-rotation decomposition， geometric criterion， grating method