MECHANICAL ANALYSIS OF THE MICROSTRUCTURE CRACKING IN DUAL-PHASE MATERIALS
复相材料中微观组织开裂的力学分析

Based on the point of view of mechanics,the cracking analysis ofmicrostructure in dual phase materials was analyzed,the concept of equal strengtth designand its equation were introduced,and the critical length(l_0) of martensite phase inF(ferrite)-M(martensite)dual-phase steels was calculated.Using the concept of criticallength,the cracking sites of microstructure were analyzed and calculated.