One-Dimensional Solid (Link) Element Library

This section provides a reference to the one-dimensional solid (link) elements available in Abaqus/Standard. For structural link (truss) elements, refer to Truss Elements.

This page discusses:

 

See Also
Solid (Continuum) Elements
*SOLID SECTION

Element Types

Diffusive Heat Transfer Elements

DC1D2

2-node link

DC1D3

3-node link

Active Degrees of Freedom

11

Additional Solution Variables

None.

Forced Convection Heat Transfer Elements

DCC1D2

2-node link

DCC1D2D

2-node link with dispersion control

Active Degrees of Freedom

11

Additional Solution Variables

None.

Coupled Thermal-Electrical Elements

DC1D2E

2-node link

DC1D3E

3-node link

Active Degrees of Freedom

9, 11

Additional Solution Variables

None.

Acoustic Elements

AC1D2

2-node link

AC1D3

3-node link

Active Degrees of Freedom

8

Additional Solution Variables

None.

Nodal Coordinates Required

X, Y, Z

Element Property Definition

You must provide the cross-sectional area of the element; by default, unit area is assumed.

Element-Based Loading

Distributed Heat Fluxes

Distributed heat fluxes are available for elements with temperature degrees of freedom. They are specified as described in Thermal Loads.

*dflux
  1. Load ID (*DFLUX): BF
  2. JL−3 T−1

  3. Heat body flux per unit volume.

  1. Load ID (*DFLUX): BFNU
  2. JL−3 T−1

  3. Nonuniform heat body flux per unit volume with magnitude supplied via user subroutine DFLUX.

  1. Load ID (*DFLUX): S1
  2. JL−2 T−1

  3. Heat surface flux per unit area into the first end of the link (node 1).

  1. Load ID (*DFLUX): S2
  2. JL−2 T−1

  3. Heat surface flux per unit area into the second end of the link (node 2 or node 3).

  1. Load ID (*DFLUX): S1NU
  2. JL−2 T−1

  3. Nonuniform heat surface flux per unit area into the first end of the link (node 1) with magnitude supplied via user subroutine DFLUX.

  1. Load ID (*DFLUX): S2NU
  2. JL−2 T−1

  3. Nonuniform heat surface flux per unit area into the second end of the link (node 2 or node 3) with magnitude supplied via user subroutine DFLUX.

Film Conditions

Film conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal Loads.

*film
  1. Load ID (*FILM): F1
  2. JL−2T−1θ−1

  3. Film coefficient and sink temperature (units of θ) at the first end of the link (node 1).

  1. Load ID (*FILM): F2
  2. JL−2T−1θ−1

  3. Film coefficient and sink temperature (units of θ) at the second end of the link (node 2 or node 3).

  1. Load ID (*FILM): F1NU
  2. JL−2T−1θ−1

  3. Nonuniform film coefficient and sink temperature (units of θ) at the first end of the link (node 1) with magnitude supplied via user subroutine FILM.

  1. Load ID (*FILM): F2NU
  2. JL−2T−1θ−1

  3. Nonuniform film coefficient and sink temperature (units of θ) at the second end of the link (node 2 or node 3) with magnitude supplied via user subroutine FILM.

Radiation Types

Radiation conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal Loads.

*radiate
  1. Load ID (*RADIATE): R1
  2. Dimensionless

  3. Emissivity and sink temperature (units of θ) at the first end of the link (node 1).

  1. Load ID (*RADIATE): R2
  2. Dimensionless

  3. Emissivity and sink temperature (units of θ) at the second end of the link (node 2 or node 3).

Distributed Impedances

Distributed impedances are available for elements with acoustic pressure degrees of freedom. They are specified as described in Acoustic and Shock Loads.

*impedance
  1. Load ID (*IMPEDANCE): I1
  2. None

  3. Name of the impedance property that defines the impedance at the first end of the link (node 1).

  1. Load ID (*IMPEDANCE): I2
  2. None

  3. Name of the impedance property that defines the impedance at the second end of the link (node 2 or node 3).

Distributed Electric Current Densities

Distributed electric current densities are available for coupled thermal-electrical elements. They are specified as described in Coupled Thermal-Electrical Analysis.

*decurrent
  1. Load ID (*DECURRENT): CBF
  2. CL−3T−1

  3. Volumetric current source density.

  1. Load ID (*DECURRENT): CS1
  2. CL−2T−1

  3. Current density at the first end of the link (node 1).

  1. Load ID (*DECURRENT): CS2
  2. CL−2T−1

  3. Current density at the second end of the link (node 2 or node 3).

Element Output

Heat Flux Components

Available for elements with temperature degrees of freedom.

HFL1

Heat flux along the element axis.

Electrical Potential Gradient

Available for coupled thermal-electrical elements.

EPG1

Electrical potential gradient along the element axis.

Electrical Current Density Components

Available for coupled thermal-electrical elements.

ECD1

Electrical current density along the element axis.

Node Ordering and Face Numbering on Elements



 

Numbering of Integration Points for Output