%0 Journal Article
%T SHORT FATIGUE CRACK BEHAVIOUR IN ISO-STRESS SPECIMENS
%A HOGN Youshi LU Yonghua ZHENG Zhemin Institute of Mechanics
%A Academia Sinica
%A Beijing
%A China Institute of Mechanics
%A Academia Sinica
%A Beijing
%A China
%A <br>HOGN Youshi LU Yonghua ZHENG Zhemin Institute of Mechanics
%A Academia Sinica
%A Beijing
%A China Institute of Mechanics
%A Academia Sinica
%A Beijing
%A China
%J 金属学报(英文版)
%D 1990
%I 
%X Fatigue tests were made on a vibration machine using specially designed specimens to investi- gate the initiation and propagation features of short fatigue cracks in a weld metal.The spec- imens were triangular in shape so that when loaded as a cantilever beam the surface tensile stress is constant.Test results show that short fatigue cracks mainly originate from slip bands within ferrite grains.The development of short fatigue cracks is marked by a gradual increase in crack density with fatigue cycles.Coalescence of short cracks leads to crack propagation and the crack path is predominantly transgranular.
%K iso—stress
%K specimen
%K short
%K fatigue
%K crack
%K weld
%K metal
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=B1E38C686BD56CF2DFAE7CB8AE778878&yid=8D39DA2CB9F38FD0&vid=38B194292C032A66&iid=E158A972A605785F&sid=44A4891E33BFF455&eid=C1B34927D429E92F&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=1&reference_num=2