Abstract
An enhance meshfree method, Moving Least-Squares Approximation with Discontinuous Derivative Basis Functions are employed to analyze large deformations of rubber-filler structures under periodic boundary conditions. Material interfaces are handled by MLSA-DBF accurately. Equilibrium equations in total Lagrangian formulations are formulated and volumetric locking is removed by Selective Reduced Integration. The formulations to solve the local fluctuating displacement field are derived, and Multiple Points Constraints Method is applied to impose the periodical boundary conditions. Numerical examples demonstrate the validity and accuracy of the proposed method
