General membrane element library

Distributed loads are specified as described in Distributed loads.

*dload

1. Load ID (*DLOAD): BX
2. Body force
3. FL⁻³

4. Body force in the global X-direction.

1. Load ID (*DLOAD): BY
2. Body force
3. FL⁻³

4. Body force in the global Y-direction.

1. Load ID (*DLOAD): BZ
2. Body force
3. FL⁻³

4. Body force in the global Z-direction.

1. Load ID (*DLOAD): BXNU
2. Body force
3. FL⁻³

4. Nonuniform body force in the global X-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard  and VDLOAD in Abaqus/Explicit.

1. Load ID (*DLOAD): BYNU
2. Body force
3. FL⁻³

4. Nonuniform body force in the global Y-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard and VDLOAD in Abaqus/Explicit.

1. Load ID (*DLOAD): BZNU
2. Body force
3. FL⁻³

4. Nonuniform body force in the global Z-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard  and VDLOAD in Abaqus/Explicit.

1. Load ID (*DLOAD): CENT^(S)
2. Not supported
3. FL⁻⁴ (ML⁻³T⁻²)

4. Centrifugal load (magnitude is input as $\rho {\omega }^2$, where $\rho$ is the mass density per unit volume, $\omega$ is the angular velocity).

1. Load ID (*DLOAD): CENTRIF^(S)
2. Rotational body force
3. T⁻²

4. Centrifugal load (magnitude is input as ${\omega }^2$, where $\omega$ is the angular velocity).

1. Load ID (*DLOAD): CORIO^(S)
2. Coriolis force
3. FL⁻⁴T (ML⁻³T⁻¹)

4. Coriolis force (magnitude is input as $\rho \omega$, where $\rho$ is the mass density per unit volume, $\omega$ is the angular velocity). The load stiffness due to Coriolis loading is not accounted for in direct steady-state dynamic analysis.

1. Load ID (*DLOAD): GRAV
2. Gravity
3. LT⁻²

4. Gravity loading in a specified direction (magnitude is input as acceleration).

1. Load ID (*DLOAD): HP^(S)
2. Not supported
3. FL⁻²

4. Hydrostatic pressure applied to the element reference surface and linear in global Z. The pressure is positive in the direction of the positive element normal.

1. Load ID (*DLOAD): P
2. Pressure
3. FL⁻²

4. Pressure applied to the element reference surface. The pressure is positive in the direction of the positive element normal.

1. Load ID (*DLOAD): PNU
2. Not supported
3. FL⁻²

4. Nonuniform pressure applied to the element reference surface with magnitude supplied via user subroutine DLOAD in Abaqus/Standard  and VDLOAD in Abaqus/Explicit. The pressure is positive in the direction of the positive element normal.

1. Load ID (*DLOAD): ROTA^(S)
2. Rotational body force
3. T⁻²

4. Rotary acceleration load (magnitude is input as $\alpha$, where $\alpha$ is the rotary acceleration).

1. Load ID (*DLOAD): ROTDYNF^(S)
2. Not supported
3. T⁻¹

4. Rotordynamic load (magnitude is input as $\omega$, where $\omega$ is the angular velocity).

1. Load ID (*DLOAD): SBF^(E)
2. Not supported
3. FL⁻⁵T²

4. Stagnation body force in global X-, Y-, and Z-directions.

1. Load ID (*DLOAD): SP^(E)
2. Not supported
3. FL⁻⁴T²

4. Stagnation pressure applied to the element reference surface.

1. Load ID (*DLOAD): TRSHR
2. Surface traction
3. FL⁻²

4. Shear traction on the element reference surface.

1. Load ID (*DLOAD): TRSHRNU^(S)
2. Not supported
3. FL⁻²

4. Nonuniform shear traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.

1. Load ID (*DLOAD): TRVEC
2. Surface traction
3. FL⁻²

4. General traction on the element reference surface.

1. Load ID (*DLOAD): TRVECNU^(S)
2. Not supported
3. FL⁻²

4. Nonuniform general traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.

1. Load ID (*DLOAD): VBF^(E)
2. Not supported
3. FL⁻⁴T

4. Viscous body force in global X-, Y-, and Z-directions.

1. Load ID (*DLOAD): VP^(E)
2. Not supported
3. FL⁻³T

4. Viscous surface pressure applied to the element reference surface. The pressure is proportional to the velocity normal to the element face and opposing the motion.