Cracking elements: A self-propagating Strong Discontinuity embedded Approach for quasi-brittle fracture

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Yiming Zhang
  • Xiaoying Zhuang

Research Organisations

External Research Organisations

  • Hebei University of Technology
  • Tongji University

Details

Original languageEnglish
Pages (from-to)84-100
Number of pages17
JournalFinite Elements in Analysis and Design
Volume144
Early online date23 Feb 2018
Publication statusPublished - May 2018

Abstract

In this paper, we present a self-propagating Strong Discontinuity embedded Approach (SDA) for quasi-brittle fracture. The method is based on the Statically Optimal Symmetric formulation (SOS) of the SDA using the 8-node quadrilateral element which avoids local stress locking. A non-continuous crack path is assumed such that the crack is modelled by a set of disconnected cracking segments. Hence, no complex crack tracking procedure and no explicit (or implicit) representation of the crack surface are needed. A local fracture criteria is proposed for determining the orientation of the crack. Several numerical tests with irregular discretizations are performed, demonstrating the effectiveness and robustness of the presented method.

Keywords

    Fracture analysis, Quasi-brittle material, Self-propagating, Strong Discontinuity embedded Approach (SDA)

ASJC Scopus subject areas

Cite this

Cracking elements: A self-propagating Strong Discontinuity embedded Approach for quasi-brittle fracture. / Zhang, Yiming; Zhuang, Xiaoying.
In: Finite Elements in Analysis and Design, Vol. 144, 05.2018, p. 84-100.

Research output: Contribution to journalArticleResearchpeer review

Zhang Y, Zhuang X. Cracking elements: A self-propagating Strong Discontinuity embedded Approach for quasi-brittle fracture. Finite Elements in Analysis and Design. 2018 May;144:84-100. Epub 2018 Feb 23. doi: 10.1016/j.finel.2017.10.007
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