Effect of a dislocation pile-up at the neutral axis on trans-crystalline crack growth for micro-bending fatigue
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- 作者：Lena Eisenhut l.eisenhut@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author ; Florian Schaefer ; f.schaefer@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author ; Patrick Gruenewald p.gruenewald@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author ; Laura Weiter l.weiter@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author ; Michael Marx m.marx@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author ; Christian Motz motz@matsci.uni-sb.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Fatigue crack growth ; Fatigue crack initiation ; Micromechanics ; Dislocation pile-up ; Bauschinger effect
- 刊名：International Journal of Fatigue
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：94
- 期：part_P1
- 页码：131-139
- 全文大小：2323 K
文摘
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Trans-crystalline fatigue crack growth in CMSX-4 micro-beam implemented.
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Dislocation pile-up causes crack deceleration at the neutral axis of a micro-beam.
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Bauschinger effect resulting from a dislocation pile-up during micro-beam fatigue.
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Crack growth curve gathered by combination of FEM-simulations and experiment.
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Fatigue crack growth in micro-beams needs higher stress intensity factor ranges.
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