FRACTAL STUDY OF CRACK PROPAGATION ON DUCTILE HARDENING MATERIAL

Abstract

Abstract: Based on the fractal theory, the formula of fractal kinematics of the crack propagation on ductile hardening material is presented. The correlation of dynamic and static energy releasing rate with crack velocity, HRR field angle function, microstructure parameter and fractal dimension Df was obtained. Fractal velocity formula of crack propagation is also derived. It is showed that the measured crack velocity v0 is less than the fractal crack velocity v. The theoretical results agree with experiment results.

Key words: Dimension, Ductile, Fractal, Propagation velocity

CLC Number:

TG115

Dong Shaohua;Lu Yingmin;Chen Zhonghui. FRACTAL STUDY OF CRACK PROPAGATION ON DUCTILE HARDENING MATERIAL[J]. , 2002, 38(1): 47-54.

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FRACTAL STUDY OF CRACK PROPAGATION ON DUCTILE HARDENING MATERIAL

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