Finite Element Modeling of Tensile Deformation Behaviors of Iron Syntactic Foam with Hollow Glass Microspheres.

摘要: The elastoplastic deformation behaviors of hollow glass microspheres/iron syntactic foam under tension were modeled using a representative volume element (RVE) approach. three-dimensional microstructures the iron with 5 wt % microspheres reconstructed random sequential adsorption algorithm. constitutive behavior elastoplasticity in matrix and elastic-brittle failure for microsphere simulated models. An appropriate RVE size was statistically determined by evaluating elastic modulus, Poisson's ratio, yield strength terms model sizes boundary conditions. validated agreement experimental findings. tensile mechanism considering fracture then investigated. In addition, feasibility introducing interfacial deboning to proposed briefly investigated improve accuracy depicting foam. It is thought that modeling techniques itself have major potential applications not only study foams, but also design composites high modulus reinforcement.