Numerical Evaluation of T-stress under Mixed Mode Loading Through the Use of Coarse Meshes

M. Acanfora, P. Gallo, S. M.J. Razavi*, M. R. Ayatollahi, F. Berto

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The present paper investigates the employment of coarse meshes in evaluating the T-stress with the displacement method. Several finite element analyses have been carried out with different mesh refinements and accuracies. Mode I and mixed mode I/II loadings have been considered in finite element analyses. Under mode I loading, single and double edge notched geometries have been considered, while plate with central crack has been considerd for mixed mode loading condition. The analyses are compared with the results by the well-nown stress based approach, and showed that the displacement method permits the evaluation of the T-stress with the employment of coarse meshes. By the way, several precautions must be taken when dealing with coarse and very coarse meshes.

Original languageEnglish
Pages (from-to)124-134
Number of pages11
JournalPhysical Mesomechanics
Volume21
Issue number2
DOIs
Publication statusPublished - 1 Mar 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • coarse mesh
  • displacement method
  • mixed mode loading
  • T-stress

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