Delamination of laminates governed by free edge interlaminar stresses using interface element

H. Hosseini-Toudeshky, M. Jalalvand, B. Mohammadi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper, interface element with de-cohesive constitutive law is used to predict the delamination progress of laminates in which delamination is the prominent failure mode. For this purpose, a finite element program is developed to perform nonlinear damage analysis. The analyses are carried out based on the interlaminar constitutive law of elastic-plastic-damage proposed before in the literature. Delamination initiation and propagation of several laminates with dominant interlaminar shear stresses at free edges are investigated to find the failure load. It is shown that the difference between the predicted failure loads using the present study and the experimental results are 3.1% to 19.4% for various laminates.

Original languageEnglish
Pages (from-to)821-824
Number of pages4
JournalKey Engineering Materials
Volume385-387
DOIs
Publication statusPublished - 31 Jul 2008

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Delamination
Laminates
Failure modes
Shear stress
Plastics

Keywords

  • damage mechanics
  • FEM
  • free edge delamination
  • interface element

Cite this

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abstract = "In this paper, interface element with de-cohesive constitutive law is used to predict the delamination progress of laminates in which delamination is the prominent failure mode. For this purpose, a finite element program is developed to perform nonlinear damage analysis. The analyses are carried out based on the interlaminar constitutive law of elastic-plastic-damage proposed before in the literature. Delamination initiation and propagation of several laminates with dominant interlaminar shear stresses at free edges are investigated to find the failure load. It is shown that the difference between the predicted failure loads using the present study and the experimental results are 3.1{\%} to 19.4{\%} for various laminates.",
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Delamination of laminates governed by free edge interlaminar stresses using interface element. / Hosseini-Toudeshky, H.; Jalalvand, M.; Mohammadi, B.

In: Key Engineering Materials, Vol. 385-387, 31.07.2008, p. 821-824.

Research output: Contribution to journalArticle

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