Locking in poroelasticity
Locking in poroelasticity
(OP)
Dear all,
I am having problems with my low-permeability model in ABAQUS using tetrahedrons C3D10MP.
A resulting pore pressure with a checker-board-ish pattern appears.
Is there a way of tackling this permeability locking?
Best,
Andre
I am having problems with my low-permeability model in ABAQUS using tetrahedrons C3D10MP.
A resulting pore pressure with a checker-board-ish pattern appears.
Is there a way of tackling this permeability locking?
Best,
Andre





RE: Locking in poroelasticity
I encounter the same problem before. That's some kind of numerical oscillation problem. The problem could be your mesh size irregularity. So do finer the mesh and test.
Jay
stungj@gmail.com
RE: Locking in poroelasticity
Thanks for your reply.
A considerably finer mesh will still exhibit those problems and I can't afford to refine it further. Using a hexahedral mesh seems to solve it, but it is not the desirable solution either.
Andre
RE: Locking in poroelasticity
I used to use CPE4. Which did you choose ?
RE: Locking in poroelasticity
Thanks
Andre
RE: Locking in poroelasticity
Jay