Transferring mass and rotary inertia elements

The verification problems outlined in this section test the transfer of mass and rotary inertia elements between Abaqus/Standard and Abaqus/Explicit.

The models consist of two elastic trusses or beams that have identical properties except for material density. In the truss model mass elements are applied to the nodes of the truss with smaller density to make the total nodal mass the same as that of the truss with larger density. Similarly, in the beam model both mass and rotary inertia elements are applied to the nodes of the beam with smaller density to make the total nodal mass and rotary inertia about the beam axis the same for both beams.

The analysis consists of two steps. In the first step gravity loading is applied in a static Abaqus/Standard analysis or in an Abaqus/Explicit analysis. The results at the end of the first step are imported to either a dynamic Abaqus/Standard analysis or an Abaqus/Explicit analysis in which a pull or twist is applied at one end of the trusses or beams. The import analyses are performed with the states reinstated at the original configuration and with no states reinstated. Mass and rotary inertia elements do not have an associated elemental state, so only the states of the trusses or beams are imported in the original configuration.

The models consist of two elastic trusses that have identical properties except for material density. Mass elements are applied to the nodes of the truss with smaller density to make the total nodal mass the same as that of the truss with larger density.

The analysis consists of two steps. In the first step gravity loading is applied in a static analysis. The results at the end of the first static analysis are imported to a second dynamic analysis in which a pull is applied at one end of the trusses. The import analyses are performed with the states reinstated at the original configuration and with no states reinstated. Mass elements do not have an associated element state, so only the states of the trusses are imported in the original configuration.

The models consist of two elastic trusses or beams that have identical properties except for material density. In the truss model mass elements are applied to the nodes of the truss with smaller density to make the total nodal mass the same as that of the truss with larger density. Similarly, in the beam model both mass and rotary inertia elements are applied to the nodes of the beam with smaller density to make the total nodal mass and rotary inertia about the beam axis the same for both beams.

The analysis consists of two steps. In the first step gravity loading is applied. The results at the end of the first analysis are imported to a second analysis in which a pull or twist is applied at one end of the trusses or beams. The import analyses are performed with the states reinstated at the original configuration and with no states reinstated. Mass and rotary inertia elements do not have an associated elemental state, so only the states of the trusses or beams are imported in the original configuration.