A representative volume element model for ultra-high-molecular-weight-polyethylene composites
نویسندگان
چکیده
This paper presents the development of a Representative Volume Element (RVE) for Ultra-high-Molecular-Weight-Polyethylene (UHMWPE) composites. The numerical models were based on fibrillar nature UHMWPE fibres, which consist smaller scale, continuous through-the-length macro-fibrils. A three-dimensional constitutive model macro-fibrils was developed and implemented in LS-DYNA explicit finite element (FE) code, through user-defined subroutine. proposed transversely isotropic accounts viscoelastic effects principal direction fibre coupled with continuum damage mechanics approach. Energy dissipation associated failure controlled an objectivity algorithm to provide mesh insensitive solutions. Hill’s yield criterion used capture non-linear response transverse direction. RVE built from Thermoplastic Polyurethane (TPU) resin order study micromechanical polymeric composite laminate. Periodic boundary conditions (PBC) imposed penalty-based cohesive contact simulate interfibrillar interactions interface between resin. provides insight microscale deformation mechanisms composites under different loading conditions.
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ژورنال
عنوان ژورنال: Composite Structures
سال: 2021
ISSN: ['0263-8223', '1879-1085']
DOI: https://doi.org/10.1016/j.compstruct.2021.113609