文章基本信息

标题：Evaluation of Localized Necking Models for Fracture Prediction in Punch-Loaded Steel Panels
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作者：Burak Can Cerik ; Kangsu Lee ; Joonmo Choung 等
期刊名称：Journal of Marine Science and Engineering
电子版ISSN：2077-1312
出版年度：2021
卷号：9
期号：2
页码：117
DOI：10.3390/jmse9020117
语种：English
出版社：MDPI AG
摘要：This study compared the experimental test results on punch-loaded unstiffened and stiffened panels with numerical predictions using different localized necking modeling approaches with shell elements. The analytical models that were derived by Bressan–Williams–Hill (BWH) were used in their original form and extended version, which considers non-proportional loading paths while using the forming-severity concept and bending-induced suppression of through-thickness necking. The results suggest that the mesh size sensitivity depends on the punch geometry. Moreover, the inclusion of bending effects and the use of the forming-severity concept in the BWH criterion yielded improved estimations of fracture initiation with shell elements.