The yield-point phenomenon and cyclic plasticity of the uniaxially loaded specimens
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- 作者：Andrej Žerovnik ; andrej.zerovnik@fs.uni-lj.si" class="auth_mail" title="E-mail the corresponding author ; Vili Pepel vili.pepel@fs.uni-lj.si" class="auth_mail" title="E-mail the corresponding author ; Ivan Prebil ivan.prebil@fs.uni-lj.si" class="auth_mail" title="E-mail the corresponding author ; Robert Kunc robert.kunc@fs.uni-lj.si" class="auth_mail" title="E-mail the corresponding author
- 关键词：Yield-point phenomenon ; Cyclic loading ; Mechanical testing
- 刊名：Materials & Design
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：92
- 期：Complete
- 页码：971-977
- 全文大小：1753 K
文摘
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The yield-point phenomenon (YPP) was analysed in relation with cyclic plasticity.
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Uniaxial cyclically-loaded specimens made of EN 42CrMo4 were analysed in normalized and tempered state.
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Digital image correlation was used for observing the strain field of specimens during monotonic and cyclic experiments.
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In specific conditions, the YPP is present during the whole lifetime of uniaxial specimens.
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The YPP can affects the lifetime of a cyclically-loaded specimen, when material exhibits cyclic softening.