A least-squares coupling method between a finite element code and a discrete element code

作者：Christian Mariotti^*; Francoise Le Piver; Ludovic Aubry

来源：International Journal for Numerical Methods in Engineering, 2015, 101(10): 731-743.

DOI：10.1002/nme.4822

• discrete element method
• finite element method
• coupling
• least-squares method
• seismic wave propagation

This paper presents a coupling method between a discrete element code CeaMka3D and a finite element code Sem. The coupling is based on a least-squares method, which adds terms of forces to finite element code and imposes the velocity at coupling particles. For each coupling face, a small linear system with a constant matrix is solved. This method remains conservative in energy and shows good results in applications.

• 出版日期2015-3-9