ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE Element typesPlane strain elements
Active degrees of freedom1, 2 Additional solution variablesThe constant pressure hybrid elements have one additional variable relating to pressure, and the linear pressure hybrid elements have three additional variables relating to pressure. Element types CPE4I and CPE4IH have five additional variables relating to the incompatible modes. Element types CPE6M and CPE6MH have two additional displacement variables. Plane stress elements
Active degrees of freedom1, 2 Additional solution variablesElement type CPS4I has four additional variables relating to the incompatible modes. Element type CPS6M has two additional displacement variables. Generalized plane strain elements
Active degrees of freedom1, 2 at all but the reference node 3, 4, 5 at the reference node Additional solution variablesThe constant pressure hybrid elements have one additional variable relating to pressure, and the linear pressure hybrid elements have three additional variables relating to pressure. Element types CPEG4I and CPEG4IH have five additional variables relating to the incompatible modes. Element types CPEG6M and CPEG6MH have two additional displacement variables. Coupled temperaturedisplacement plane strain elements
Active degrees of freedom1, 2, 11 at corner nodes 1, 2 at midside nodes of secondorder elements in Abaqus/Standard 1, 2, 11 at midside nodes of modified displacement and temperature elements in Abaqus/Standard Additional solution variablesThe constant pressure hybrid elements have one additional variable relating to pressure, and the linear pressure hybrid elements have three additional variables relating to pressure. Element types CPE6MT and CPE6MHT have two additional displacement variables and one additional temperature variable. Coupled temperaturedisplacement plane stress elements
Active degrees of freedom1, 2, 11 at corner nodes 1, 2 at midside nodes of secondorder elements in Abaqus/Standard 1, 2, 11 at midside nodes of modified displacement and temperature elements in Abaqus/Standard Additional solution variablesElement type CPS6MT has two additional displacement variables and one additional temperature variable. Coupled temperaturedisplacement generalized plane strain elements
Active degrees of freedom1, 2, 11 at corner nodes 1, 2 at midside nodes of secondorder elements 1, 2, 11 at midside nodes of modified displacement and temperature elements 3, 4, 5 at the reference node Additional solution variablesThe constant pressure hybrid elements have one additional variable relating to pressure, and the linear pressure hybrid elements have three additional variables relating to pressure. Element types CPEG6MT and CPEG6MHT have two additional displacement variables and one additional temperature variable. Diffusive heat transfer or mass diffusion elements
Active degrees of freedom11 Additional solution variablesNone. Forced convection/diffusion elements
Active degrees of freedom11 Additional solution variablesNone. Coupled thermalelectrical elements
Active degrees of freedom9, 11 Additional solution variablesNone. Pore pressure plane strain elements
Active degrees of freedom1, 2, 8 at corner nodes 1, 2 at midside nodes for all elements except CPE6MP and CPE6MPH, which also have degree of freedom 8 active at midside nodes Additional solution variablesThe constant pressure hybrid elements have one additional variable relating to the effective pressure stress, and the linear pressure hybrid elements have three additional variables relating to the effective pressure stress to permit fully incompressible material modeling. Element types CPE6MP and CPE6MPH have two additional displacement variables and one additional pore pressure variable. Coupled temperature–pore pressure plane strain elements
Active degrees of freedom1, 2, 8, 11 at corner nodes Additional solution variablesThe constant pressure stress hybrid elements have one additional variable relating to the effective pressure stress to permit fully incompressible material modeling. Acoustic elements
Active degrees of freedom8 Additional solution variablesNone. Piezoelectric plane strain elements
Active degrees of freedom1, 2, 9 Additional solution variablesNone. Piezoelectric plane stress elements
Active degrees of freedom1, 2, 9 Additional solution variablesNone. Electromagnetic elements
Active degrees of freedomMagnetic vector potential (for more information, see Boundary conditions and Boundary conditions). Additional solution variablesNone. Nodal coordinates requiredX, Y Element property definitionFor all elements except generalized plane strain elements, you must provide the element thickness; by default, unit thickness is assumed. For generalized plane strain elements, you must provide three values: the initial length of the axial material fiber through the reference node, the initial value of $\mathrm{\Delta}{\varphi}_{x}$ (in radians), and the initial value of $\mathrm{\Delta}{\varphi}_{y}$ (in radians). If you do not provide these values, Abaqus assumes the default values of one unit as the initial length and zero for $\mathrm{\Delta}{\varphi}_{x}$ and $\mathrm{\Delta}{\varphi}_{y}$. In addition, you must define the reference point for generalized plane strain elements. Input File Usage Use the following option to define the element properties for all elements except generalized plane strain elements: SOLID SECTION Use the following option to define the element properties for generalized plane strain elements: SOLID SECTION, REF NODE=node number or node set name Abaqus/CAE Usage Property module: Create Section: select Solid as the section Category and Homogeneous, Generalized plane strain, or Electromagnetic, Solid as the section Type Generalized plane strain sections must be assigned to regions of parts that have a reference point associated with them. To define the reference point: Part module: ToolsReference Point: select reference point Elementbased loadingDistributed loadsDistributed loads are available for all elements with displacement degrees of freedom. They are specified as described in Distributed loads. *dload
FoundationsFoundations are available for Abaqus/Standard elements with displacement degrees of freedom. They are specified as described in Element foundations. *foundation
Distributed heat fluxesDistributed heat fluxes are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *dflux
Film conditionsFilm conditions are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *film
Radiation typesRadiation conditions are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *radiate
Distributed flowsDistributed flows are available for all elements with pore pressure degrees of freedom. They are specified as described in Pore fluid flow. *flow
Distributed impedancesDistributed impedances are available for all elements with acoustic pressure degrees of freedom. They are specified as described in Acoustic and shock loads. *impedance
Electric fluxesElectric fluxes are available for piezoelectric elements. They are specified as described in Piezoelectric analysis. *decharge
Distributed electric current densitiesDistributed electric current densities are available for coupled thermalelectrical elements, coupled thermalelectricalstructural elements, and electromagnetic elements. They are specified as described in Coupled thermalelectrical analysis, Fully coupled thermalelectricalstructural analysis, and Eddy current analysis. *decurrent
Distributed concentration fluxesDistributed concentration fluxes are available for mass diffusion elements. They are specified as described in Mass diffusion analysis. *dflux
Surfacebased loadingDistributed loadsSurfacebased distributed loads are available for all elements with displacement degrees of freedom. They are specified as described in Distributed loads. *dsload
Distributed heat fluxesSurfacebased heat fluxes are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *dsflux
Film conditionsSurfacebased film conditions are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *sfilm
Radiation typesSurfacebased radiation conditions are available for all elements with temperature degrees of freedom. They are specified as described in Thermal loads. *sradiate
Distributed flowsSurfacebased flows are available for all elements with pore pressure degrees of freedom. They are specified as described in Pore fluid flow. *sflow
Distributed impedancesSurfacebased impedances are available for all elements with acoustic pressure degrees of freedom. They are specified as described in Acoustic and shock loads. Incident wave loadingSurfacebased incident wave loads are available for all elements with displacement degrees of freedom or acoustic pressure degrees of freedom. They are specified as described in Acoustic and shock loads. If the incident wave field includes a reflection off a plane outside the boundaries of the mesh, this effect can be included. Electric fluxesSurfacebased electric fluxes are available for piezoelectric elements. They are specified as described in Piezoelectric analysis. *dsecharge
Distributed electric current densitiesSurfacebased electric current densities are available for coupled thermalelectrical elements, coupled thermalelectricalstructural elements, and electromagnetic elements. They are specified as described in Coupled thermalelectrical analysis, Fully coupled thermalelectricalstructural analysis, and Eddy current analysis. *dsecurrent
Element outputFor most elements output is in global directions unless a local coordinate system is assigned to the element through the section definition (Orientations) in which case output is in the local coordinate system (which rotates with the motion in largedisplacement analysis). See State storage for details. Stress, strain, and other tensor componentsStress 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:
Heat flux componentsAvailable for elements with temperature degrees of freedom.
Pore fluid velocity componentsAvailable for elements with pore pressure degrees of freedom.
Mass concentration flux componentsAvailable for elements with normalized concentration degrees of freedom.
Electrical potential gradientAvailable for elements with electrical potential degrees of freedom.
Electrical flux componentsAvailable for piezoelectric elements.
Electrical current density componentsAvailable for coupled thermalelectrical elements.
Electrical field componentsAvailable for electromagnetic elements in an eddy current analysis.
Magnetic flux density componentsAvailable for electromagnetic elements.
Magnetic field componentsAvailable for electromagnetic elements.
Eddy current density components in an eddy current analysisAvailable for electromagnetic elements in an eddy current analysis.
Applied volume current density components in an eddy current or magnetostatic analysisAvailable for electromagnetic elements in an eddy current or magnetostatic analysis.
Node ordering and face numbering on elementsFor generalized plane strain elements, the reference node associated with each element (where the generalized plane strain degrees of freedom are stored) is not shown. The reference node should be the same for all elements in any given connected region so that the bounding planes are the same for that region. Different regions may have different reference nodes. The number of the reference node is not incremented when the elements are generated incrementally (see Creating elements from existing elements by generating them incrementally).
Numbering of integration points for output
