NAFEMS LE8
Static (shells)PASS · 4.35%Axisymmetric shell under internal pressure — hoop stress check away from the boundary.
- Tolerance:
- 5%
Problem statement
- Geometry
- Axisymmetric shell section.
- Material
- E = 210 GPa, ν = 0.3.
- Boundary conditions
- Uz = 0 at point A; Ur = 0 at point E; internal pressure of 1 MPa.
- Measured quantity
- Hoop stress on the outer surface, 36° from the circle centre — reference value 94.55 MPa.
Results comparison
| Reference value | 94.55 МПа (TNSB-1990) |
| Our result | 90.44 МПа (мелкая), 92.57 МПа (базовая) |
| Deviation | 4.35% |
| Tolerance | 5% |
| Status | PASS · 4.35% |
| Element family | Solid element |
| Mesh details | hex8-клин 2° тела вращения (994 → 1926 узлов, 6 → 8 эл. по толщине), симметрия; купол отсечён при r=0.05 и заменён натяжением pR/2; профиль выведен из чертежей (тройка 3-4-5), σ_hoop(D): 92.57 → 90.44 МПа |
Updated: 2026-08-10 · WebCAE solver