Element type T2D2H has one additional variable and element type T2D3H has two additional variables relating to axial force.
3D Stress/Displacement Truss Elements
T3D2
2-node linear displacement
T3D2H(S)
2-node linear displacement, hybrid
T3D3(S)
3-node quadratic displacement
T3D3H(S)
3-node quadratic displacement, hybrid
Active Degrees of Freedom
1, 2, 3
Additional Solution Variables
Element type T3D2H has one additional variable and element type T3D3H has two additional variables relating to axial force.
2D Coupled Temperature-Displacement Truss Elements
T2D2T(S)
2-node, linear displacement, linear temperature
T2D3T(S)
3-node, quadratic displacement, linear temperature
Active Degrees of Freedom
1, 2 at middle node for T2D3T
1, 2, 11 at all other nodes
Additional Solution Variables
None.
3D Coupled Temperature-Displacement Truss Elements
T3D2T(S)
2-node, linear displacement, linear temperature
T3D3T(S)
3-node, quadratic displacement, linear temperature
Active Degrees of Freedom
1, 2, 3 at middle node for T3D3T
1, 2, 3, 11 at all other nodes
Additional Solution Variables
None.
2D Piezoelectric Truss Elements
T2D2E(S)
2-node, linear displacement, linear electric potential
T2D3E(S)
3-node, quadratic displacement, quadratic electric potential
Active Degrees of Freedom
1, 2, 9
Additional Solution Variables
None.
3D Piezoelectric Truss Elements
T3D2E(S)
2-node, linear displacement, linear electric potential
T3D3E(S)
3-node, quadratic displacement, quadratic electric potential
Active Degrees of Freedom
1, 2, 3, 9
Additional Solution Variables
None.
Nodal Coordinates Required
2D: X, Y
3D: X, Y, Z
Element Property Definition
You must provide the cross-sectional area of the element. If no area is given, Abaqus assumes unit area.
Element-Based Loading
Distributed Loads
Distributed loads are available for elements with displacement degrees of freedom. They are specified as described in Distributed Loads.
*dload
Load ID (*DLOAD): BX
Body force
FL−3
Body force in global X-direction.
Load ID (*DLOAD): BY
Body force
FL−3
Body force in global Y-direction.
Load ID (*DLOAD): BZ
Body force
FL−3
Body force in global Z-direction. (Only for 3D trusses.)
Load ID (*DLOAD): BXNU
Body force
FL−3
Nonuniform body force in global X-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard and VDLOAD in Abaqus/Explicit.
Load ID (*DLOAD): BYNU
Body force
FL−3
Nonuniform body force in global Y-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard and VDLOAD in Abaqus/Explicit.
Load ID (*DLOAD): BZNU
Body force
FL−3
Nonuniform body force in global Z-direction with magnitude supplied via user subroutine DLOAD in Abaqus/Standard and VDLOAD in Abaqus/Explicit. (Only for 3D trusses.)
Load ID (*DLOAD): CENT(S)
Not supported
FL−4 (ML−3T−2)
Centrifugal load (magnitude is input as , where is the mass density per unit volume, is the angular velocity).
Load ID (*DLOAD): CENTRIF(S)
Rotational body force
T−2
Centrifugal load (magnitude is input as , where is the angular velocity).
Load ID (*DLOAD): CORIO(S)
Coriolis force
FL−4T (ML−3T−1)
Coriolis force (magnitude is input as , where is the mass density per unit volume, is the angular velocity).
Load ID (*DLOAD): GRAV
Gravity
LT−2
Gravity loading in a specified direction (magnitude is input as acceleration).
Load ID (*DLOAD): ROTA(S)
Rotational body force
T−2
Rotary acceleration load (magnitude is input as , where is the rotary acceleration).
Abaqus/Aqua Loads
Abaqus/Aqua loads are specified as described in Abaqus/Aqua Analysis. They are available only for stress/displacement trusses.
*cload/ *dload
Load ID (*CLOAD/ *DLOAD): FDD
Not supported
FL−1
Transverse fluid drag load.
Load ID (*CLOAD/ *DLOAD): FD1
Not supported
F
Fluid drag force on the first end of the truss (node 1).
Load ID (*CLOAD/ *DLOAD): FD2
Not supported
F
Fluid drag force on the second end of the truss (node 2 or node 3).
Load ID (*CLOAD/ *DLOAD): FDT
Not supported
FL−1
Tangential fluid drag load.
Load ID (*CLOAD/ *DLOAD): FI
Not supported
FL−1
Fluid inertia load.
Load ID (*CLOAD/ *DLOAD): FI1
Not supported
F
Fluid inertia force on the first end of the truss (node 1).
Load ID (*CLOAD/ *DLOAD): FI2
Not supported
F
Fluid inertia force on the second end of the truss (node 2 or node 3).
Load ID (*CLOAD/ *DLOAD): PB
Not supported
FL−1
Buoyancy load (with closed end condition).
Load ID (*CLOAD/ *DLOAD): WDD
Not supported
FL−1
Transverse wind drag load.
Load ID (*CLOAD/ *DLOAD): WD1
Not supported
F
Wind drag force on the first end of the truss (node 1).
Load ID (*CLOAD/ *DLOAD): WD2
Not supported
F
Wind drag force on the second end of the truss (node 2 or node 3).
Distributed Heat Fluxes
Distributed heat fluxes are available for coupled temperature-displacement trusses. They are specified as described in Thermal Loads.
*dflux
Load ID (*DFLUX): BF(S)
Body heat flux
JL−3 T−1
Heat body flux per unit volume.
Load ID (*DFLUX): BFNU(S)
Body heat flux
JL−3 T−1
Nonuniform heat body flux per unit volume with magnitude supplied via user subroutine DFLUX.
Load ID (*DFLUX): S1(S)
Surface heat flux
JL−2 T−1
Heat surface flux per unit area into the first end of the truss (node 1).
Load ID (*DFLUX): S2(S)
Surface heat flux
JL−2 T−1
Heat surface flux per unit area into the second end of the truss (node 2 or node 3).
Load ID (*DFLUX): S1NU(S)
Not supported
JL−2 T−1
Nonuniform heat surface flux per unit area into the first end of the truss (node 1) with magnitude supplied via user subroutine DFLUX.
Load ID (*DFLUX): S2NU(S)
Not supported
JL−2 T−1
Nonuniform heat surface flux per unit area into the second end of the truss (node 2 or node 3) with magnitude supplied via user subroutine DFLUX.
Film Conditions
Film conditions are available for coupled temperature-displacement trusses. They are specified as described in Thermal Loads.
*film
Load ID (*FILM): F1(S)
Not supported
JL−2 T−1−1
Film coefficient and sink temperature at the first end of the truss (node 1).
Load ID (*FILM): F2(S)
Not supported
JL−2 T−1−1
Film coefficient and sink temperature at the second end of the truss (node 2 or node 3).
Load ID (*FILM): F1NU(S)
Not supported
JL−2 T−1−1
Nonuniform film coefficient and sink temperature at the first end of the truss (node 1) with magnitude supplied via user subroutine FILM.
Load ID (*FILM): F2NU(S)
Not supported
JL−2 T−1−1
Nonuniform film coefficient and sink temperature at the second end of the truss (node 2 or node 3) with magnitude supplied via user subroutine FILM.
Radiation Types
Radiation conditions are available for coupled temperature-displacement trusses. They are specified as described in Thermal Loads.
*radiate
Load ID (*RADIATE): R1(S)
Surface radiation
Dimensionless
Emissivity and sink temperature at the first end of the truss (node 1).
Load ID (*RADIATE): R2(S)
Surface radiation
Dimensionless
Emissivity and sink temperature at the second end of the truss (node 2 or node 3).
Electric Fluxes
Electric fluxes are available for piezoelectric trusses. They are specified as described in Piezoelectric Analysis.
*decharge
Load ID (*DECHARGE): EBF(S)
Body charge
CL−3
Body flux per unit volume.
Element Output
Stress, Strain, and Other Tensor Components
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
Axial stress.
Heat Flux Components
Available for coupled temperature-displacement trusses.