Peridynamic theory for progressive damage prediction in center-cracked composite laminates

B. Kilic, A. Agwai, E. Madenci

Research output: Contribution to journalArticle

161 Scopus citations

Abstract

Numerical studies on the failure of composites have mostly employed the finite element method. However, it can be rather challenging to predict failure using this method. The assumption of lamina homogeneity is questionable when predicting failure, though it is suitable for stress analysis. Matrix cracking, fiber breakage, and delamination are inherent to the inhomogeneous nature of the composite, thus the assumption of material homogeneity taints the failure prediction. It is, therefore, essential that the inhomogeneous nature of the composites must be retained in the analysis in order to predict the correct failure modes. Hence, this study considers distinct properties of the fiber and matrix and their volume fractions and fiber orientations while modeling composite laminates. The peridynamic theory is employed to predict the damage in center-cracked laminates with different fiber orientations. The predictions from the peridynamic analysis agree with the experimental observations published in the literature.

Original languageEnglish (US)
Pages (from-to)141-151
Number of pages11
JournalComposite Structures
Volume90
Issue number2
DOIs
StatePublished - Sep 1 2009

Keywords

  • Composites
  • Failure
  • Nonlocal
  • Peridynamic theory
  • Progressive

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

Fingerprint Dive into the research topics of 'Peridynamic theory for progressive damage prediction in center-cracked composite laminates'. Together they form a unique fingerprint.

  • Cite this