应用数学和力学(英文版)
應用數學和力學(英文版)
응용수학화역학(영문판)
APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION)
2003年
11期
1342-1347
,共6页
periodical crack%interracial crack%anisotropic elastoplastic fracture of bimaterial%antiplane problem%Dugdale-Barenblatt ( D-B ) model%crack openning displacement (COD)
By tusing Fourier transformation the boundary problem of periodical interfacial cracks in anisotropic elastoplas tic bimaterial was transformed into a set of dual integral equations and then it was further reduced by means of definite integral transformation into a group of singular equations. Closed form of its solution was obtained and three corresponding problems of isotropic bi material, of a single anisotropic material and of a bimaterial of isotropy-anisotropy were treated as the specific cases. The plastic zone length of the crack tip and crack openning displacement ( COD ) decline asthe smaller yield limit of the two bonded materials rises, and they were also determined by crack length and the space between two neighboring cracks. In addition, COD also relates it with moduli of the materials.
