Product: ABAQUS/Standard
Young's modulus = 1.0 × 107, Poisson's ratio = 0.0.
Boundary conditions:
All degrees of freedom restrained at A.
Loading:
Concentrated load at B (
= 3000).
This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test 3DNLG-5 from NAFEMS Publication R0024 “A Review of Benchmark Problems for Geometric Non-linear Behaviour of 3-D Beams and Shells (SUMMARY).”
The published results of this problem were obtained with ABAQUS. Thus, a comparison of ABAQUS and NAFEMS results is not an independent verification of ABAQUS. The NAFEMS study includes results from other sources for comparison that may provide a basis for verification of this problem.
All elements are tested with meshes using the same nodal spacing.
The results vary slightly between different element types. The maximum difference in the reported displacement components is 1.3%. The hybrid element results are identical to their non-hybrid counterparts to the precision reported here. The tip displacement components are compared in the tables below.
| Load | Tip Displacement ( ) | ||
|---|---|---|---|
| B31(H) | B32(H) | B33(H) |
| 300.0 | –7.097 | –7.173 | –7.188 |
| 450.0 | –10.82 | –10.92 | –10.93 |
| 600.0 | –13.62 | –13.73 | –13.74 |
| 3000.0 | –24.99 | –25.06 | –25.04 |
B31 elements.
B31H elements.
B32 elements.
B32H elements.
B33 elements.
B33H elements.
)
)