文章基本信息

标题：Investigation of low cycle asymmetric torsion
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作者：Daunys M. ; Česnavičius R.
期刊名称：Mechanika
印刷版ISSN：1392-1207
出版年度：2010
卷号：86
期号：6
页码：5-10
DOI：10.5755/j01.mech.86.6.15968
语种：English
出版社：Kauno Technologijos Universitetas
摘要：During exploitation the materials of constructionsstart gradually accumulate the damage, which finallycauses fracture of the construction. The accumulation ofdamage occurs as a result of the high cycle and low cycledamage due to the cyclic overloads, which cause the elas-tic-plastic deformation. Especially dangerous is the over-load as cyclically varying stresses exceed the proportionallimit of the material and plastic strain starts, which resultsthe hysteresis loop of the plastic strain and causes the re-duction in material fatigue life up to thousands or hundredscycles. It is defined that 75% of fracture of the mechanicalsystems’ constructions occurs due to material fatigue [1 -6].