Three-dimensional cohesive element formulation for delamination modeling

Peter J. Matthews, Kevin L. Koudela

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work examines cohesive element techniques for modeling delamination within a finite element method framework. Cohesive elements maintain compatibility between plies of a composite laminate where delaminations can occur. The formulation of cohesive elements for three-dimensional models is detailed. The constitutive behavior for cohesive elements is described in terms of traction-separation behavior. A user-defined cohesive element is coded for implementation within the ABAQUS commercial finite element software. User-defined cohesive element damage traction-separation behavior is tested against ABAQUS built-in cohesive elements and results from numerical verification tests of the user-defined cohesive element are shown. The major benefit of having a user-defined element is the ability to customize mixedmode damage models with various novel traction-separation laws.

Original languageEnglish (US)
Title of host publication2011 SAMPE Spring Technical Conference and Exhibition - State of the Industry
Subtitle of host publicationAdvanced Materials, Applications, and Processing Technology
StatePublished - Aug 30 2011
Event2011 SAMPE Spring Technical Conference and Exhibition - State of the Industry: Advanced Materials, Applications, and Processing Technology - Long Beach, CA, United States
Duration: May 23 2011May 26 2011

Other

Other2011 SAMPE Spring Technical Conference and Exhibition - State of the Industry: Advanced Materials, Applications, and Processing Technology
CountryUnited States
CityLong Beach, CA
Period5/23/115/26/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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    Matthews, P. J., & Koudela, K. L. (2011). Three-dimensional cohesive element formulation for delamination modeling. In 2011 SAMPE Spring Technical Conference and Exhibition - State of the Industry: Advanced Materials, Applications, and Processing Technology