EXPERIMENTAL GH SINGULARITY FIELD AROUND GROWING CRACK-TIP

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    摘要 Thedisplacementfieldsux,uyatgrowingcracktipofLYI2-Mspecimenswithdoubleedgecracksaremeasuredusingmoiremethod.TheexperimentalsingularityfieldsarecomparedwithGHtheoreticalfield[12-14].ThesizeandshapeoftheexperimentalGHsingularityfieldsareobtained.Theerrorinboththeexperimentalandtheoreticalevaluationsiscontrolledwithin±10%.Theexperimentsshowthatthereis(InA/r)+1singularitydominantaroundagrowingcracktip.Theshapeofthisdominantregionrangesfrombutterflywingtooblateandcircular.InsideGH-field,thereisa3-DdeformeddamagezonewherenoGHsin-gularityexists.
    机构地区 不详
    出处 《力学学报:英文版》 1991年3期
    出版日期 1991年03月13日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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