%0 Journal Article
%T FRACTAL EFFECTS OF DYNAMIC CRACK PROPAGATION<br>动态裂纹扩展中的分形效应
%A XieHeping
%A <br>谢和平
%J 力学学报
%D 1995
%I 
%X Crack extension paths are often irregular, producing rough fracture surfaceswhich have a fractal geometry.In this paper, crack tip motion along a fractal crack trace isanalysed. A fractal kinking model of the crack extension path is established to describe ir-regular crack growth. A formula is derived to describe the effects of fractal crack propagationon the dvnamic stross intensity factor and on crack velocity. The ratio of the dvnamic stressintensity factor to the applied stress intensity factor,K(l(t),V...
%K crack propagation
%K dynamic fracture
%K fractal crack path
%K fractal kinked model
%K fractal effect<br>裂纹扩展
%K 动态断裂
%K 分形效应
%K 断裂力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=18E4054FCB3C7B868E76814E8B82BBD4&yid=BBCD5003575B2B5F&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=13553B2D12F347E8&eid=DB817633AA4F79B9&journal_id=0459-1879&journal_name=力学学报&referenced_num=14&reference_num=7