• Registered: 14-12-2017
  • Posts: 1

Topic: Is it possible for a part of mesh to remain discrete (no FE)

I am new to OOFEM and am trying to use OOFEM to realize partial Finite Element approximation for discrete particle model( as what is described in this paper https://arxiv.org/pdf/1701.07651.pdf). I want the particle nodes in high interest area to keep their DOF, while approximating the particle nodes with FE in low interest area. The authors in the above papers used OOFEM to realize this.

I am wondering what is the correct way to realize this? It seems to me that I can just specify nodes without specifying FE associated with these nodes. However I am not sure if this is correct.

  • Registered: 25-06-2013
  • Posts: 241

Re: Is it possible for a part of mesh to remain discrete (no FE)

Hi,

it should be possible using quasicontinuum method, you can find an example of a file using quasicontinuum in test/sm/quasicontinuum2d.in

Martin