Mesoscopic simulation on curing deformation and residual stresses of 3D braided composites

Both cure deformations and residual stresses of 3D braided composites are studied based on the representative volume element (RVE) by means of thermochemical and thermodynamic model. First, the curing analysis model of cubic braided RVE is established, and the HETVAL, UMAT, UEXPAN and USDFLD subroutines are used to define the properties of the resin and the fiber about curing reaction kinetic, thermal conductive and viscoelastic model,...