Investigation of Fracture Design for Bi-Steel Materials
The eigen-equation of bi-materials cracks was founded on the basis of the stress field and displacement field. The influence of shearing modulus and Poisson’s ratio of matrix material and additive material to eigen-values were analyzed through the results of calculating. The stress intensity factors at the tip of matrix crack were calculated. The suitable parameters of bi-steel materials crack in fracture design were obtained. The results show that the effect of Poisson’s ratio on eigen-values is not obviously and the effect of shearing modulus is obviously. The shearing modulus of additive material should bigger than that of matrix material.
M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz
Y. T. Li et al., "Investigation of Fracture Design for Bi-Steel Materials", Key Engineering Materials, Vols. 324-325, pp. 503-506, 2006