Products: ABAQUS/Standard ABAQUS/Explicit
The cross-section properties generated and stored in the jobname.bsp text files from the previous section, “Meshing and analyzing a two-dimensional model of a beam cross-section,” Section 3.15.2, are used in beam analyses to define stiffness and inertia properties for beam elements. The *BEAM GENERAL SECTION, SECTION=MESHED and the *INCLUDE, INPUT=jobname.bsp options are used to assign the precalculated stiffness and inertia properties to the beam elements. The results obtained for the meshed section beams are verified by comparing them with results obtained for beams using the *BEAM GENERAL SECTION, SECTION=GENERAL option that are assigned stiffness and inertia properties identical to those of the meshed beams. Dynamic analyses are performed in both ABAQUS/Standard and ABAQUS/Explicit. Static and frequency extraction analyses are also performed in ABAQUS/Standard. The use of the *BEAM ADDED INERTIA and *BEAM FLUID INERTIA options to modify the inertia properties defined for meshed beams in the jobname.bsp text files is also tested.
The model comprises a single cantilevered beam subjected to a concentrated load at its tip. The load is applied as a step load resulting in significant dynamic motion of the beam.
The beam responses obtained using the *BEAM GENERAL SECTION, SECTION=MESHED option are identical to the beam responses obtained using the *BEAM GENERAL SECTION, SECTION=GENERAL option. For the same model, the results from a dynamic analysis in ABAQUS/Standard agree well with the results from a dynamic analysis in ABAQUS/Explicit.
Meshed beams with C-section; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Standard.
Meshed beams with C-section; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Explicit.
Meshed beams with I-section; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Standard.
Meshed beams with I-section; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Explicit.
Meshed beams with I-section; composite elastic material; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Standard.
Meshed beams with I-section; composite elastic material; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Explicit.
Meshed beams with I-section; centroid offset from reference node; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Standard.
Meshed beams with I-section; centroid offset from reference node; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Explicit.
Two-dimensional meshed beams with I-section; composite elastic material; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Standard.
Two-dimensional meshed beams with I-section; composite elastic material; comparison of meshed and general section beams; dynamic analysis in ABAQUS/Explicit.
Meshed beams with rectangular section; comparison of meshed and general section beams; frequency extraction in ABAQUS/Standard.
Beam added inertia with meshed beams in ABAQUS/Standard.
Beam added inertia with meshed beams in ABAQUS/Explicit.
Beam fluid inertia with meshed beams in ABAQUS/Explicit.