Interface element method (IEM) for a partitioned system with non-matching interfaces

摘要

A novel method for non-matching interfaces on the boundaries of finite elements in partitioned domains is presented by introducing interface elements in this paper. The interface element method (IEM) satisfies the continuity conditions exactly through interface element domains without recourse to Lagrange multiplier technique. The interface elements take an interpolation scheme used in meshless methods to join partitioned domains. The moving least square (MLS) approximations in the present study are implemented to construct the shape functions of the interface elements.