ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE ConventionsCoordinate 1 is r, coordinate 2 is z. The rdirection corresponds to the global Xdirection, and the zdirection corresponds to the global Ydirection. Coordinate 1 should be greater than or equal to zero. Degree of freedom 1 is ${u}_{r}$, degree of freedom 2 is ${u}_{z}$, and degree of freedom 6 is rotation in the r–z plane. Abaqus does not automatically apply any boundary conditions to nodes located along the symmetry axis. You should apply radial or symmetry boundary conditions on these nodes if desired. Point loads and concentrated fluxes should be given as the value integrated around the circumference (that is, the load on the complete ring). The meridional direction is the direction that is tangent to the element in the r–z plane; that is, the meridional direction is along the line that is rotated about the axis of symmetry to generate the full threedimensional body. The circumferential or hoop direction is the direction normal to the r–z plane. Element typesStress/displacement elements
Active degrees of freedom1, 2, 6 Additional solution variablesNone. Heat transfer elements
Active degrees of freedom11, 12, 13, etc. (temperatures through the thickness as described in Choosing a shell element) Additional solution variablesNone. Coupled temperaturedisplacement element
Active degrees of freedom1, 2, 6 at all three nodes 11, 12, 13, etc. (temperatures through the thickness as described in Choosing a shell element) at the end nodes Additional solution variablesNone. Nodal coordinates requiredr, z, and optionally for shells with displacement degrees of freedom, ${N}_{r}$, ${N}_{z}$, the direction cosines of the shell normal at the node. Element property definitionInput File Usage Use either of the following options for stress/displacement elements: SHELL SECTION SHELL GENERAL SECTION Use the following option for heat transfer or coupled temperaturedisplacement elements: SHELL SECTION In addition, use the following option for variable thickness shells: NODAL THICKNESS Abaqus/CAE Usage Property module: Create Section: select Shell as the section Category and Homogeneous or Composite as the section Type Elementbased loadingDistributed loadsDistributed loads are available for elements with displacement degrees of freedom. They are specified as described in Distributed loads. Distributed load magnitudes are per unit area or per unit volume. They do not need to be multiplied by $2\pi $. Body forces and centrifugal loads must be given as force per unit area if a general shell section is used. *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 elements with temperature degrees of freedom. They are specified as described in Thermal loads. *dflux
Film conditionsFilm conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal loads. *film
Radiation typesRadiation conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal loads. *radiate
Surfacebased loadingDistributed loadsSurfacebased distributed loads are available for elements with displacement degrees of freedom. They are specified as described in Distributed loads. Distributed load magnitudes are per unit area or per unit volume. They do not need to be multiplied by $2\pi $. *dsload
Distributed heat fluxesSurfacebased heat fluxes are available for elements with temperature degrees of freedom. They are specified as described in Thermal loads. *dsflux
Film conditionsSurfacebased film conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal loads. *sfilm
Radiation typesSurfacebased radiation conditions are available for elements with temperature degrees of freedom. They are specified as described in Thermal loads. *sradiate
Incident wave loadingSurfacebased incident wave loads are available. They are specified as described in Acoustic, shock, and coupled acousticstructural analysis. If the incident wave field includes a reflection off a plane outside the boundaries of the mesh, this effect can be included. Element outputStress, 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:
Section forces, moments, and transverse shear forcesAvailable for elements with displacement degrees of freedom.
Section strains, curvature changes, and transverse shear strainsAvailable for elements with displacement degrees of freedom.
Shell thickness
Heat flux componentsAvailable for elements with temperature degrees of freedom.
Node ordering on elements
Numbering of integration points for output
