A weak Galerkin method for elasticity interface problems

This article introduces a weak Galerkin (WG) finite element method for linear elasticity interface problems on general polygonal/polyhedral partitions. The discrete divergence and gradient operators are discretized as polynomials computed by solving inexpensive local each element. developed WG has been proved to be stable accurate with optimal order error estimates in the H1 norm. Some numerical experiments conducted verify efficiency accuracy of proposed method, addition, its uniform convergence independent jump coefficients incompressibility.