Prediction of failure properties of injection-molded short glass fiber-reinforced polyamide 6,6

Toshiki Sasayama, Tomonaga Okabe, Yoshiteru Aoyagi, Masaaki Nishikawa

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This study simulates the tensile failure of injection-molded short glass fiber-reinforced polyamide 6,6 (GF/PA66). Tensile tests of unreinforced PA66 are first conducted and the material properties are obtained by fitting a simulated stress-strain curve to the experiment result. Using the obtained material properties, failure simulations of GF/PA66 composites are performed for four types of specimens with various fiber lengths and fiber orientation distributions. In the simulations, multiscale mechanistic model, which can simulate micromechanical damage, and Micromechanics Model (MM), which has very low computational cost, are adapted and the results are compared with experiments. Both models reproduce the experiment results well. Considering the computational cost, MM is the better model for predicting the failure properties of GF/PA66 composites.

Original languageEnglish
Pages (from-to)45-54
Number of pages10
JournalComposites Part A: Applied Science and Manufacturing
Volume52
DOIs
Publication statusPublished - 2013 Jun 24

Keywords

  • A. Discontinuous reinforcement
  • A. Polymer-matrix composites (PMCs)
  • B. Fracture
  • C. Micro-mechanics

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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