%0 Journal Article
%T EFFECT OF PRE-STRAIN ON TORSIONAL FATIGUE PROPERTIES OF MIDDLE CARBON STEEL<br>预应变对中碳钢扭转疲劳特性的影响
%A MIAO Dehua
%A NISHIDA Shin-ichi
%A HATTORI Nobusuke
%A <br>苗德华
%A 西田新
%A 服部信祐
%J 力学与实践
%D 2008
%I 
%X Fatigue test was performed to investigate the reversed torsional fatigue properties of non-pre-strained carbon steel and three kinds of pre-strained carbon steel. Main results summarized in this study are as follows: In the case of pre-strain rate lower than 5{\%}, the fatigue limit is 10{\%} lower than the non-pre-strained specimen. In the case of pre-strain rate higher than 5{\%}, the fatigue limit increases with increasing pre-strain rate. For the pre-strain rate of 8{\%}, the fatigue limit is equal to the fatigue limit of non-pre-strained specimen. The non-propagatinig cracks are observed in all specimens' surfaces after 1$\times $10$^{7}$ cycles under the stress amplitude of fatigue limit.
%K pre-strain
%K torsion
%K fatigue property
%K carbon steel<br>预应变
%K 扭转
%K 疲劳特性
%K 碳钢
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=E12B1EDB497B81B0A9BEED9E00E8611B&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=E158A972A605785F&sid=1D0FA33DA02ABACD&eid=0401E2DB1F51F8DE&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=4