%0 Journal Article
%T ELASTIC-PLASTIC FIELDS NEAR THE GROWING CRACK TIP<br>扩展裂纹尖端弹塑性场
%A W ei Yueguang
%A wang Tzuchiang
%A <br>魏悦广
%A 王自强
%J 力学学报
%D 1994
%I 
%X In this paper,the propagation process of a crack in the power-law hardeningmaterials is accurately calculated by the elastic- plastic finite element method under planestrain and Mode I conditions. The elaistic-plastic fields near the growing crack tip are givenin detail.A unified three term solutions of stress fields ahead of the growing crack tip are firstpresented. The firs t term is t he H RR singularity solut io n. T he second t erm describes thetriaxiality The third term includes a linear term of the radius coordinate r besides the HRRsingularity term.Th is conclusion is completely sat isfied for t he various sp ecimen geometries, differentmaterials and a variety of yielding degrees from small scale yielding to large scale yielding.
%K growing crack
%K elastic-plastic fields
%K three parameter characterization<br>扩展裂纹，弹塑性场，三参量表征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=405B05CDFDE4A61AA481924D5F51AB89&yid=3EBE383EEA0A6494&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&sid=7C3A4C1EE6A45749&eid=B6DA1AC076E37400&journal_id=0459-1879&journal_name=力学学报&referenced_num=1&reference_num=0