Dear all,
I want to simulate the propagation of an acoustic wave with a spherical wave source outside my computational domain using Finite Element Method. The governing equation is a linearized acoustic equation with velocity potential as the primary variable ( the secondary variable is thus...
Dear all,
I'm just starting off in the field of FEM. Please bear with me if this is a bad question. I'm curious how do we model rigid body motion in FEM.
The first way I can think of is to discard the stiffness term totally (set stiffness matrix to 0). That way, the equation of motion becomes...
Dear all,
I'm trying to create a 3D mesh in abaqus using hex element with non-uniformly spaced interpolation nodes.(e.g. Gauss-Lobatto interpolation points) However, there are no such element topology in element library. I've read the "User subroutine to define an element" chapter in user guide...
