25.1.4 Connector element library

Products: ABAQUS/Standard ABAQUS/Explicit ABAQUS/CAE

References

Element types

Connector in a plane

CONN2D2 Connector element between two nodes or ground and a node.

Active degrees of freedom

1, 2, 6 for the most general connection types.

Additional solution variables

In ABAQUS/Standard there can be up to three additional constraint variables related to forces and a moment associated with the connector. The number of additional constraint variables depends on the connection type.

Connector in space

CONN3D2 Connector element between two nodes or ground and a node.

Active degrees of freedom

1, 2, 3, 4, 5, 6 for the most general connection types.

Additional solution variables

In ABAQUS/Standard there can be up to six additional constraint variables related to forces and moments associated with the connector. The number of additional constraint variables depends on the connection type.

Nodal coordinates required

CONN2D2: X, Y

CONN3D2: X, Y, Z

Element property definition

Input File Usage:

*CONNECTOR SECTION

ABAQUS/CAE Usage:

Interaction module: ConnectorSectionCreate

Element-based loading

Use connector loads to apply loading to the available components of relative motion. Prescribe connector motion to specify relative kinematics (zero or nonzero values) for the available components of relative motion. See “Connector actuation,” Section 25.1.3, for details.

Element output

Total force components

CTF1	Total force in the 1-direction.

CTF2	Total force in the 2-direction.

CTF3	Total force in the 3-direction.

CTM1	Total moment about the 1-direction.

CTM2	Total moment about the 2-direction.

CTM3	Total moment about the 3-direction.

The total force is obtained as CTF = CEF + CVF + CSF + CRF – CCF.

Elastic force components

CEF1	Elastic force in the 1-direction.

CEF2	Elastic force in the 2-direction.

CEF3	Elastic force in the 3-direction.

CEM1	Elastic moment about the 1-direction.

CEM2	Elastic moment about the 2-direction.

CEM3	Elastic moment about the 3-direction.

Elastic displacement components

CUE1	Elastic displacement in the 1-direction.

CUE2	Elastic displacement in the 2-direction.

CUE3	Elastic displacement in the 3-direction.

CURE1

Elastic rotation about the 1-direction.

CURE2

Elastic rotation about the 2-direction.

CURE3

Elastic rotation about the 3-direction.

Plastic relative displacement components

CUP1	Plastic relative displacement in the 1-direction.

CUP2	Plastic relative displacement in the 2-direction.

CUP3	Plastic relative displacement in the 3-direction.

CURP1

Plastic relative rotation about the 1-direction.

CURP2

Plastic relative rotation about the 2-direction.

CURP3

Plastic relative rotation about the 3-direction.

Equivalent plastic relative displacement components

CUPEQ1

Equivalent plastic relative displacement in the 1-direction.

CUPEQ2

Equivalent plastic relative displacement in the 2-direction.

CUPEQ3

Equivalent plastic relative displacement in the 3-direction.

CURPEQ1

Equivalent plastic relative rotation about the 1-direction.

CURPEQ2

Equivalent plastic relative rotation about the 2-direction.

CURPEQ3

Equivalent plastic relative rotation about the 3-direction.

CUPEQC

Equivalent plastic relative motion for a coupled plasticity definition.

Kinematic hardening shift force components

CALPHAF1

Kinematic hardening shift force in the 1-direction.

CALPHAF2

Kinematic hardening shift force in the 2-direction.

CALPHAF3

Kinematic hardening shift force in the 3-direction.

CALPHAM1

Kinematic hardening shift moment about the 1-direction.

CALPHAM2

Kinematic hardening shift moment about the 2-direction.

CALPHAM3

Kinematic hardening shift moment about the 3-direction.

Viscous force components

CVF1	Viscous force in the 1-direction.

CVF2	Viscous force in the 2-direction.

CVF3	Viscous force in the 3-direction.

CVM1	Viscous moment about the 1-direction.

CVM2	Viscous moment about the 2-direction.

CVM3	Viscous moment about the 3-direction.

Friction force components

CSF1	Force due to frictional stress in the 1-direction.

CSF2	Force due to frictional stress in the 2-direction.

CSF3	Force due to frictional stress in the 3-direction.

CSM1	Frictional moment about the 1-direction.

CSM2	Frictional moment about the 2-direction.

CSM3	Frictional moment about the 3-direction.

CSFC	Force due to frictional stress in the instantaneous slip direction. Available only for predefined or user-defined coupled friction interactions.

Contact force components generating friction

CNF1	Contact force generating friction in the 1-direction.

CNF2	Contact force generating friction in the 2-direction.

CNF3	Contact force generating friction in the 3-direction.

CNM1	Contact moment generating friction about the 1-direction.

CNM2	Contact moment generating friction about the 2-direction.

CNM3	Contact moment generating friction about the 3-direction.

CNFC	Contact force generating friction in the instantaneous slip direction.

Total overall damage components

CDMG1

Overall damage variable in the 1-direction.

CDMG2

Overall damage variable in the 2-direction.

CDMG3

Overall damage variable in the 3-direction.

CDMGR1

Overall damage variable along the 1-direction.

CDMGR2

Overall damage variable along the 2-direction.

CDMGR3

Overall damage variable along the 3-direction.

Connector force-based damage initiation criteria

CDIF1

Connector force-based damage initiation criterion in the 1-direction.

CDIF2

Connector force-based damage initiation criterion in the 2-direction.

CDIF3

Connector force-based damage initiation criterion in the 3-direction.

CDIFR1

Connector force-based damage initiation criterion along the 1-direction.

CDIFR2

Connector force-based damage initiation criterion along the 2-direction.

CDIFR3

Connector force-based damage initiation criterion along the 3-direction.

CDIFC

Connector force-based damage initiation criterion in the instantaneous slip direction.

Connector motion-based damage initiation criteria

CDIM1

Connector motion-based damage initiation criterion in the 1-direction.

CDIM2

Connector motion-based damage initiation criterion in the 2-direction.

CDIM3

Connector motion-based damage initiation criterion in the 3-direction.

CDIMR1

Connector motion-based damage initiation criterion along the 1-direction.

CDIMR2

Connector motion-based damage initiation criterion along the 2-direction.

CDIMR3

Connector motion-based damage initiation criterion along the 3-direction.

CDIMC

Connector motion-based damage initiation criterion in the instantaneous slip direction.

Connector plastic motion-based damage initiation criteria

CDIP1

Connector plastic motion-based damage initiation criterion in the 1-direction.

CDIP2

Connector plastic motion-based damage initiation criterion in the 2-direction.

CDIP3

Connector plastic motion-based damage initiation criterion in the 3-direction.

CDIPR1

Connector plastic motion-based damage initiation criterion along the 1-direction.

CDIPR2

Connector plastic motion-based damage initiation criterion along the 2-direction.

CDIPR3

Connector plastic motion-based damage initiation criterion along the 3-direction.

CDIPC

Connector plastic motion-based damage initiation criterion in the instantaneous slip direction.

Connector lock or stop status

CSLSTi

Flags for connector stop and connector lock status .

Friction-related accumulated slip

CASU1

Accumulated frictional slip in the 1-direction.

CASU2

Accumulated frictional slip in the 2-direction.

CASU3

Accumulated frictional slip in the 3-direction.

CASUR1

Accumulated frictional rotation about the 1-direction.

CASUR2

Accumulated frictional rotation about the 2-direction.

CASUR3

Accumulated frictional rotation about the 3-direction.

CASUC

Accumulated frictional slip in the instantaneous slip direction.

Frictional instantaneous velocity in the slip direction (available only if friction is defined in the slip direction)

CIVC	Friction-related instantaneous velocity in the slip direction.

Reaction force components due to kinematic constraints, connector locks, connector stops, and prescribed connector motion

CRF1	Connector reaction force in the 1-direction.

CRF2	Connector reaction force in the 2-direction.

CRF3	Connector reaction force in the 3-direction.

CRM1	Connector reaction moment about the 1-direction.

CRM2	Connector reaction moment about the 2-direction.

CRM3	Connector reaction moment about the 3-direction.

Connector concentrated force components due to connector loads

CCF1	Connector concentrated force in the 1-direction.

CCF2	Connector concentrated force in the 2-direction.

CCF3	Connector concentrated force in the 3-direction.

CCM1	Connector concentrated moment about the 1-direction.

CCM2	Connector concentrated moment about the 2-direction.

CCM3	Connector concentrated moment about the 3-direction.

Relative position components

CP1	Relative position in the 1-direction.

CP2	Relative position in the 2-direction.

CP3	Relative position in the 3-direction.

CPR1	Relative angular position in the 1-direction.

CPR2	Relative angular position in the 2-direction.

CPR3	Relative angular position in the 3-direction.

Relative displacement components

CU1	Relative displacement in the 1-direction.

CU2	Relative displacement in the 2-direction.

CU3	Relative displacement in the 3-direction.

CUR1	Relative rotation in the 1-direction.

CUR2	Relative rotation in the 2-direction.

CUR3	Relative rotation in the 3-direction.

Constitutive displacement components

CCU1	Constitutive displacement in the 1-direction.

CCU2	Constitutive displacement in the 2-direction.

CCU3	Constitutive displacement in the 3-direction.

CCUR1

Constitutive rotation in the 1-direction.

CCUR2

Constitutive rotation in the 2-direction.

CCUR3

Constitutive rotation in the 3-direction.

Relative velocity components

CV1	Relative velocity in the 1-direction.

CV2	Relative velocity in the 2-direction.

CV3	Relative velocity in the 3-direction.

CVR1	Relative angular velocity in the 1-direction.

CVR2	Relative angular velocity in the 2-direction.

CVR3	Relative angular velocity in the 3-direction.

Relative acceleration components

CA1	Relative acceleration in the 1-direction.

CA2	Relative acceleration in the 2-direction.

CA3	Relative acceleration in the 3-direction.

CAR1	Relative angular acceleration in the 1-direction.

CAR2	Relative angular acceleration in the 2-direction.

CAR3	Relative angular acceleration in the 3-direction.

Connector failure status

CFAILSTi

Flags for connector failure status .

CONN2D2	Connector element between two nodes or ground and a node.

CONN3D2	Connector element between two nodes or ground and a node.