| NAFEMS | ELLIPTIC MEMBRANE | Test No LE1 | Date/Issue 1986-07-01/1 |
| ORIGIN | NAFEMS report C1 |
| ANALYSIS TYPE | Linear elastic |
| GEOMETRY All dimensions in metres |
 thickness 0.1 |
| LOADING | Uniform outward pressure of 10 MPa at outer edge BC Inner curved edge unloaded |
| BOUNDARY CONDITIONS | Edge AB symmetry about y axis, i.e. zero x-displacement Edge CD symmetry about x axis, i.e. zero y-displacement |
| MATERIAL PROPERTIES | Isotropic, E=210 ´ 103 MPa, n=0.3 |
| ELEMENT TYPES | Plane stress quadrilaterals or triangles |
| MESHES (Corner nodes only given) |
Coarse |
Fine - Approx. halving of coarse mesh |
| OUTPUT | Tangential edge stress (syy) at D | TARGET | 92.7 MPa |
Download the files corresponding to the benchmark:
| Data category | File Description | Provided by |
|---|---|---|
| Geometry specification | ISO 10303-203
class 6 - advanced b-rep 2001-02-13 |
NAFEMS |
| ISO 10303-203
class 4 - manifold surfaces 2001-02-13 |
||
| FE specification | ISO 10303-209 classes 4 and 10 - manifold surfaces geometry; FE model; loads and boundary conditions; target result | |
| Analysis result | MS Powerpoint - deformation and fringe plot of
syy 2000-07-31 |
Electric
Boat (Steve Gordon) |