NAFEMS logo

NAFEMS Benchmark LE1


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
le1_1.gif

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
le1_2.gif
Fine - Approx. halving of coarse mesh
le1_3.gif

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)