Computational modeling of the drop-weight tear test: A comparison of two failure modeling approaches
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- 作者：C. Hari Manoj Simha ; hari.simha@nrcan.gc.ca" class="auth_mail" title="E-mail the corresponding author ; Su Xu su.xu@nrcan.gc.ca" class="auth_mail" title="E-mail the corresponding author ; W.R. Tyson bill.tyson@nrcan.gc.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：Pipeline ; Fracture ; Steel ; Voids ; Damage ; Gurson&ndash ; Tvergaard&ndash ; Needleman ; DWTT ; CTOA
- 刊名：Engineering Fracture Mechanics
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：148
- 期：Complete
- 页码：304-323
- 全文大小：2280 K
文摘
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The DWTT is modeled using GTN and damage-mechanics models.
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Both models include Lode-angle dependent damage formulation.
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Non-local formulation is used to mitigate mesh-dependence of results.
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Transferability of model to larger scales is assessed using simulations.