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Assessment of newly developed ductile fracture criteria for lightweight metals

  • Deakin University
  • Korea Advanced Institute of Science and Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publicationAdvances in Engineering Plasticity and its Application IX
EditorsJeong Whan Yoon, Heung Nam Han, Beom Soo Kang, Young-Suk Kim
PublisherTrans Tech Publications Ltd
Pages42-47
Number of pages6
ISBN (Print)9783035713626
DOIs
StatePublished - 2019
Event14th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2018 - Seogwipo-si, Korea, Republic of
Duration: 2 Dec 20187 Dec 2018

Publication series

NameKey Engineering Materials
Volume794 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference14th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2018
Country/TerritoryKorea, Republic of
CitySeogwipo-si
Period2/12/187/12/18

Keywords

  • Aluminum alloy
  • Ductile fracture criteria
  • Fracture strain
  • Lode parameter
  • Stress triaxiality

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