Peridynamics for progressive failure analysis of composites

Erdogan Madenci, Mehmet Dorduncu, Nam Phan

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

Abstract

This study applies the Peridynamic Differential Operator (PDDO) to solve for the equilibrium equations of Classical Laminate Theory (CLT) for progressive failure analysis of composites without employing a stiffness degradation factor. The PD representation of the displacement derivatives and the transformed reduced stiffness matrix permits the evolution of fiber and matrix cracking during deformation, and enables the modeling of progressive failure. In the derivation of equilibrium equations of CLT, the transformed reduced stiffness matrix is considered as spatially varying unlike the common assumption of its uniform variation. The PD representation of these equations enables the modeling of progressive failure during the deformation through the removal of PD interactions (bonds). The stiffness degradation is natural, and it is achieved by removing the PD bonds. The numerical results concern unidirectional laminates and a symmetric cross-ply laminate with a through-the-thickness crack under tension, and a non-symmetric cross-ply laminate with a crack only in the bottom ply subjected to a uniform distributed load.

Original languageEnglish (US)
Title of host publication33rd Technical Conference of the American Society for Composites 2018
PublisherDEStech Publications Inc.
Pages599-613
Number of pages15
Volume1
ISBN (Electronic)9781510872073
StatePublished - Jan 1 2018
Event33rd Technical Conference of the American Society for Composites 2018 - Seattle, United States
Duration: Sep 24 2018Sep 27 2018

Other

Other33rd Technical Conference of the American Society for Composites 2018
CountryUnited States
CitySeattle
Period9/24/189/27/18

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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    Madenci, E., Dorduncu, M., & Phan, N. (2018). Peridynamics for progressive failure analysis of composites. In 33rd Technical Conference of the American Society for Composites 2018 (Vol. 1, pp. 599-613). DEStech Publications Inc..