Description
A hemispherical shell with an opening at its top is loaded with point loads along its edge. As the geometry and loading are symmetrical, only one-quarter of the shell is modeled.
Geometry
Elements: rectangular
Radius: 10.0
Thickness: 0.4
Modulus of Elasticity: 6.825×107
Poisson ratio: 0.3
Supports: Symmetry supports along the side of the shell, a support for stability at the midpoint of the base.
Loads
Reference
Richard H.Macneal, Robert L. Harder, A Proposed Set of Problems to Test Finite Element Accuracy, R.C.Finite Elements in Analysis and Design, North Holland, 1985.
Calculations
The reference gives 0.094 as the value for the comparison of results.
Comparison of Results
| Node | Result type | Result | Deviation | |
| Theoretical | STRAP | |||
| 11, 103 | Deflection in the
direction of load |
0.094 | 0.0902 | 4.04% |