Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Constitutive Equation for Woven Fabric Reinforced Thermoplastic Composites Considering Shear Stiffness

전단강성이 고려된 직물강화 열가소성 복합재료 조성방정식

  • 유웅렬 (미시간주립대학교 기계공학과)
  • Published : 2002.08.01
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Abstract

A new constitutive model has been developed based on the homogenization method by considering the micrcostructure of composites including both the mechanical and structural properties of woven fabric reinforcements. The constitutive equation enables to simulate the deformation behavior of thermoplastic composites in forming processes as reported in the previous paper. In the previous formulation for the constitutive equation, the warp and weft yams over crossover were assumed to freely rotate without considering frictional behaviors. This assumption is released in this study to simulate the shear behavior of fabric reinforcements due to the frictional behavior of crossing points between the warp and the weft. A simple but effective way to add the shear resistance of woven fabrics into the constitutive model is discussed. Based on literatures, several examples were simulated for validation purposes in this study.

Keywords

References

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