OS-V: 0510 Wrapped Thick Cylinder
Test No: R0031/2 OptiStruct examines the hoop stress in the inner and outer cylinder at different radius for linear static analysis.
Model Files
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Benchmark Model
Ply laminates are created using Quad4 elements for one quarter model of the cylinder. For Case 1 an internal pressure of 200 MPa is applied and for the Case 2 together with the internal pressure, a temperature rise of 130 °C is applied.
The material properties are:
- Inner Cylinder (Isotropic)
- E
- 2.1 × 105 MPa
- 0.3
- α
- 2.0 × 10-5°C-1
- Outer Cylinder (Circumferentially wound)
- E1
- 1.3 × 105 MPa
- 12
- 0.25
- E2
- 5.0 × 103 MPa
- α1
-
3.0 × 10-6°C-1
- α2
- 2.0 × 10-5°C-1
- G12
- 1.0 × 104 MPa
- G33
- 5.0 × 103 MPa
Linear Static Analysis Results
| Target (MPa) | OptiStruct Results (MPa) | Normalized with the Target Value | |
|---|---|---|---|
| Case 1: | |||
| Hoop stress in inner cylinder at r = 23 | 1565.3 | 1659.4 | 0.94329276 |
| Hoop stress in inner cylinder at r = 25 | 1429.7 | 1659.4 | 0.86157647 |
| Hoop stress in outer cylinder at r = 25 | 874.7 | 792.6 | 1.10358314 |
| Hoop stress in outer cylinder at r = 27 | 759.1 | 792.6 | 0.95773404 |
| Case 2: | |||
| Hoop stress in inner cylinder at r = 23 | 1381.0 | 1392.05 | 0.99206207 |
| Hoop stress in inner cylinder at r = 25 | 1259.6 | 1392.05 | 0.90485256 |
| Hoop stress in outer cylinder at r = 25 | 1056.0 | 1059.92 | 0.99630161 |
| Hoop stress in outer cylinder at r = 27 | 936.1 | 1059.92 | 0.88317986 |
Reference
NAFEMS R0031 - Composite Benchmarks, Hardy 2001