Damage analysis of tensile deformation of co-rolled SMATed 304SS

X. Guo, A. Y.T. Leung, A. Chen, Haihui Ruan, J. Lu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

One of recent experimental progresses in strengthening and toughening metals simultaneously is to adopt techniques of surface mechanical attrition treatment (SMAT) and warm co-rolling to 304 stainless steel (SS). To capture deformation behavior and associated damage initiation/evolution process in the co-rolled SMATed 304SS, cohesive finite element method (CFEM) is employed in this paper and simulation results are in agreement with experimental results. Both strengthening effect due to high yield stress of the nanograin layer and toughening effect due to non-localized damage in the nanograin layer are captured. Effect of energy release rate of nanograin layer on failure strain of layered co-rolled SMATed 304SS is investigated. It is found that the more brittle the nanograin layer is, the more potential necking sites in the nanograin layer are, and the more ductile the layered co-rolled SMATed 304SS is.
Original languageEnglish
Title of host publicationISCM II and EPMESC XII - Proc. of the 2nd Int. Symposium on Computational Mechanics and the 12th Int. Conf. on the Enhancement and Promotion of Computational Methods in Engineering and Science
Pages65-70
Number of pages6
Volume1233
EditionPART 1
DOIs
Publication statusPublished - 24 Aug 2010
Event2nd International Symposium on Computational Mechanics, ISCM II, and the 12th International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science, EPMESC XII - Hong Kong, Macau, Hong Kong
Duration: 30 Nov 20093 Dec 2009

Conference

Conference2nd International Symposium on Computational Mechanics, ISCM II, and the 12th International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science, EPMESC XII
Country/TerritoryHong Kong
CityHong Kong, Macau
Period30/11/093/12/09

Keywords

  • CFEM
  • damage initiation and evolution
  • strengthening and toughening

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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