TOPIC：Peridynamic Modeling of Fiber-reinforced Composites with Polymer and Ceramic Matrix

DATE：April 18, 2018 

ROOM：A229

SPEECHER: Dr.Yile Hu((University of Arizona)

ABSTRACT:

As an alternative to the classical continuum mechanics, PeriDynamic (PD) theory formulates the equation of motion in the form of integral equations instead of the differential form used in classical mechanics. In addition, nonlocal influence is introduced to the equation of motion. In PD analysis, damage is introduced by removing the interactions between material points. These broken interactions may align themselves along surfaces that form cracks, yet the equations of motion remain valid. These features allow crack initiation and propagation at multiple sites, with arbitrary paths inside the material, without resorting to external crack growth criteria. In the past decade, PD has been widely adopted and applied to various engineering applications. This study focuses on developing novel modeling techniques for fiber-reinforced composites with polymer and ceramic matrix based on Peridynamic approach. To capture the anisotropic material behaviors of composites under quasi-static and dynamic loading conditions, a new peridynamic model for composite laminate and a modified peridynamic approach for non-uniform discretization are proposed. In order to achieve the numerical implementation of the proposed model and approach, a mixed implicit-explicit solver based on GPU parallel computing is developed as well.