1.1: Cantilever Beam under Gravity

Geometry and Boundary Conditions

One end of the beam is fixed, with a body load of 9.81 m/s² in the negative Z direction (0,0,-1).

../../../_images/benchmark1-1-setup.png

Material

Isotropic material with:

  • E = 205 GPa

  • ν = 0.3

  • ρ = 7870 kg/m³

Results

Reference results from [3]

Radial Displacement at Inner Radius (Linear Elements)

Resolution

Theory

Direct Solver [%error]

Iterative Solver [%error]

10,000

-2.232E-04

-2.231E-04 [1.25%]

-2.231E-04 [1.25%]

50,000

-2.246E-04

-2.248E-04 [0.52%]

-2.248E-04 [0.52%]

120,000

-2.249E-04

-2.252E-04 [0.36%]

-2.252E-04 [0.36%]

200,000

-2.251E-04

-2.253E-04 [0.31%]

-2.253E-04 [0.31%]

Time (s) to solve with <1% error

4.73 secs

3.58 secs