Product: Abaqus/Standard
This section provides a reference to the cylindrical membrane elements available in Abaqus/Standard.
Distributed loads are specified as described in “Distributed loads,” Section 33.4.3.
Load ID (*DLOAD): BX
Units: FL–3
Description: Body force in the global X-direction.
Load ID (*DLOAD): BY
Units: FL–3
Description: Body force in the global Y-direction.
Load ID (*DLOAD): BZ
Units: FL–3
Description: Body force in the global Z-direction.
Load ID (*DLOAD): BXNU
Units: FL–3
Description: Nonuniform body force in the global X-direction with magnitude supplied via user subroutine DLOAD.
Load ID (*DLOAD): BYNU
Units: FL–3
Description: Nonuniform body force in the global Y-direction with magnitude supplied via user subroutine DLOAD.
Load ID (*DLOAD): BZNU
Units: FL–3
Description: Nonuniform body force in the global Z-direction with magnitude supplied via user subroutine DLOAD.
Load ID (*DLOAD): CENT
Units: FL–4(ML–3 T–2)
Description: Centrifugal load (magnitude is input as 
, where 
is the mass density per unit volume, 
is the angular velocity).
Load ID (*DLOAD): CENTRIF
Units: T–2
Description: Centrifugal load (magnitude is input as 
, where is the angular velocity).
Load ID (*DLOAD): CORIO
Units: FL–4T (ML–3 T–1)
Description: Coriolis force (magnitude is input as 
, where is the mass density per unit volume, is the angular velocity).
Load ID (*DLOAD): GRAV
Units: LT–2
Description: Gravity loading in a specified direction (magnitude is input as acceleration).
Load ID (*DLOAD): HP
Units: FL–2
Description: 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.
Load ID (*DLOAD): P
Units: FL–2
Description: Pressure applied to the element reference surface. The pressure is positive in the direction of the positive element normal.
Load ID (*DLOAD): PNU
Units: FL–2
Description: Nonuniform pressure applied to the element reference surface with magnitude supplied via user subroutine DLOAD. The pressure is positive in the direction of the positive element normal.
Load ID (*DLOAD): ROTA
Units: T–2
Description: Rotary acceleration load (magnitude is input as 
, where is the rotary acceleration.
Load ID (*DLOAD): ROTDYNF(S)
Units: T–1
Description: Rotordynamic load (magnitude is input as , where is the angular velocity).
Load ID (*DLOAD): TRSHR
Units: FL–2
Description: Shear traction on the element reference surface.
Load ID (*DLOAD): TRSHRNU(S)
Units: FL–2
Description: Nonuniform shear traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.
Load ID (*DLOAD): TRVEC
Units: FL–2
Description: General traction on the element reference surface.
Load ID (*DLOAD): TRVECNU(S)
Units: FL–2
Description: Nonuniform general traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.
Foundations are specified as described in “Element foundations,” Section 2.2.2.
Load ID (*FOUNDATION): F
Units: FL–3
Description: Elastic foundation.
Surface-based distributed loads are specified as described in “Distributed loads,” Section 33.4.3.
Load ID (*DSLOAD): HP
Units: FL–2
Description: Hydrostatic pressure on the element reference surface and linear in global Z. The pressure is positive in the direction opposite to the surface normal.
Load ID (*DSLOAD): P
Units: FL–2
Description: Pressure on the element reference surface. The pressure is positive in the direction opposite to the surface normal.
Load ID (*DSLOAD): PNU
Units: FL–2
Description: Nonuniform pressure on the element reference surface with magnitude supplied via user subroutine DLOAD. The pressure is positive in the direction opposite to the surface normal.
Load ID (*DSLOAD): TRSHR
Units: FL–2
Description: Shear traction on the element reference surface.
Load ID (*DSLOAD): TRSHRNU(S)
Units: FL–2
Description: Nonuniform shear traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.
Load ID (*DSLOAD): TRVEC
Units: FL–2
Description: General traction on the element reference surface.
Load ID (*DSLOAD): TRVECNU(S)
Units: FL–2
Description: Nonuniform general traction on the element reference surface with magnitude and direction supplied via user subroutine UTRACLOAD.
If a local orientation (“Orientations,” Section 2.2.5) is not used with the element, the stress/strain components are expressed in the default directions on the surface defined by the convention given in “Conventions,” Section 1.2.2. If a local orientation is used with the element, the stress/strain components are in the surface directions defined by the orientation. In large-displacement problems the local directions defined in the reference configuration are rotated into the current configuration by the average material rotation. See “State storage,” Section 1.5.4 of the Abaqus Theory Manual, for details.
Stress and other tensors (including strain tensors) are available for elements with displacement degrees of freedom. All tensors have the same components. For example, the stress components are as follows:
S11 | Local |
S22 | Local |
S12 | Local |
direct stress.
direct stress.
shear stress.
