4.6.6 NL6: Straight cantilever with axial end point load

Product: ABAQUS/Standard  

Element tested

B22   

Problem description

Material:

Linear elastic, Young's modulus = 210 GPa, Poisson's ratio = 0.0.

Boundary conditions:

= 0 at point B.

Loading:

A concentrated load at point A applied in increments up to a maximum value of

Reference solution

This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test NL6 from NAFEMS Publication NNB, Rev. 1, “NAFEMS Non-Linear Benchmarks,” October 1989.

Deformation at A
3.190–0.4400.7190.444
22.493–1.5770.4210.978

Results and discussion

The results are shown in the following table. The values enclosed in parentheses are percentage differences with respect to the reference solution.

Deformation at A
3.190–0.447 (+1.59%)0.723 (+0.56%)0.448 (+0.90%)
22.493–1.577 (0.0%)0.427 (+1.43%)0.975 (–0.31%)

Input file

nnl6x22x.inp

B22 elements.