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Assessment of newly developed ductile fracture criteria for lightweight metals
conference contribution
posted on 2019-01-01, 00:00 authored by Rugang Chai, Yanshan Lou, Jeong YoonJeong Yoon© 2019 Trans Tech Publications Ltd, Switzerland. This paper assesses various newly developed ductile fracture criteria including modified Mohr-Coulomb (MMC), DF2012, DF2014, DF2016, Hu-Chen and Mu-Zang, which were all proposed in the last decade. The AA2024-T351 is used for the assessment by comparing the predicted fracture limits to the experimental results both in strain and stress spaces. Fracture loci are also constructed by these criteria to evaluate their characteristics. The evaluation demonstrates that the Lode parameter and stress triaxiality should be properly coupled for reasonable modeling of ductile fracture in wide loading conditions. This study also shows that the coupling of the Lode parameter can also be realized by introducing the effect of the largest shear stress in fracture criteria.
History
Event
Engineering Plasticity and its Applications. Symposium (14th : 2018 : Jeju Island, Korea)Volume
794Pagination
42 - 47Publisher
Trans Tech PublicationsLocation
Jeju Island, KoreaPlace of publication
Zurich, SwitzerlandStart date
2018-12-02End date
2018-12-07ISSN
1013-9826ISBN-13
9783035713626Language
engPublication classification
E1 Full written paper - refereedCopyright notice
2019, Trans Tech Publications Ltd, SwitzerlandTitle of proceedings
Key Engineering Materials : 14th Asia-Pacific Symposium on Engineering Plasticity and its ApplicationsUsage metrics
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