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Onset of Strain Localization in Fiber Reinforced Composites Subjected to Plane Stress Loading

  • Marta Miletić
  • Dunja PerićEmail author
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The main objective of this study was to find analytical solutions for the onset of strain localization in fiber reinforced composites subjected to plane stress loading. In particular, elastic multidirectional fibers are embedded into an elastic-plastic matrix. A macroscopic tangent stiffness tensor of the fiber-reinforced composite is obtained by consistently homogenizing the contribution of fibers in a cylindrical representative volume element. Upon deriving analytical solutions their properties are further illustrated on the example of Drucker–Prager model. Results show that fibers decrease the critical hardening modulus, thus inhibiting the onset of strain localization. The main fiber parameters that control the stress level at the inception of strain localization are their volumetric content and their stiffness modulus.

Reference

  1. Runesson K, Ottosen NS, Perić D (1991) Discontinuous bifurcations of elastic-plastic solutions at plane stress and plane strain. Int J Plasticity 7:99–121CrossRefzbMATHGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of Civil EngineeringKansas State UniversityManhattanUSA

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