Products: ABAQUS/Standard ABAQUS/Explicit
AC1D2 AC1D3
ACAX3 ACAX4 ACAX4R ACAX6 ACAX8
AC2D3 AC2D4 AC2D4R AC2D6 AC2D8
The meshes used for the acoustic element patch tests are the same as those used for the corresponding heat transfer elements.
Note: The models are analyzed via *STEADY STATE DYNAMICS procedures in which a small frequency, 0.01 Hz, is requested. In ABAQUS/Explicit the steady-state results are obtained by performing a long-term transient simulation.
Boundary conditions:
, where P is the acoustic pressure, 
through 
are arbitrary constants, and x, y, z denote spatial location. Acoustic pressures (DOF 8) are prescribed at every node along the boundary of the mesh.
It is currently not possible to report the pressure gradients for acoustic elements in ABAQUS. However, it is possible to compare the acoustic pressures at the interior nodes of the mesh to the values that are analytically calculated from the above expression for P.
AC1D2 elements.
AC1D3 elements.
ACAX3 elements.
ACAX4 elements.
ACAX6 elements.
ACAX8 elements.
AC2D3 elements.
AC2D4 elements.
AC2D6 elements.
AC2D8 elements.
AC3D4 elements.
AC3D6 elements.
AC3D8 elements.
AC3D10 elements.
AC3D15 elements.
AC3D20 elements.
ACAX3 elements.
ACAX4R elements.
AC2D3 elements.
AC2D4R elements.
AC3D4 elements.
AC3D6 elements.
AC3D8R elements.