Simulation of mechanical response during polymer crystallization around rigid inclusions and voids: homogeneous crystallization

Ruojuan Ma, Mehrdad Negahban

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The mechanical effects of homogeneous polymer crystallization around single defects are studied, showing how crystallization can develop residual stresses, and change material moduli. Defects in the form of rigid inclusions or voids are considered, either having spherical or cylindrical geometry. Problems with spherical symmetry are considered in the case of a spherical defect, and plane strain problems with axial symmetry are considered in the case of a cylindrical defect. The predicted response is based on a constitutive model developed by Negahban et al. (1993, Int. J. Eng. Sci. 31(1), 93-113), and shows that large residual stresses develop, which may result in debonding or fracture.

Original languageEnglish (US)
Pages (from-to)25-50
Number of pages26
JournalMechanics of Materials
Volume21
Issue number1
DOIs
StatePublished - Jul 1995

Keywords

  • Composites
  • Crystallization
  • Defects
  • Inclusions
  • Inhomogeneous
  • Mechanics
  • Polymers
  • Stress
  • Voids

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Mechanics of Materials

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