In this test the shell system, depicted above, is analysed with two point loads, each of 2 kN (acting towards the inside and outside respectively), whereby an isotropic material with an E-modulus of 68.25*10³ MPa and a poisson's ratio of 0.3 are used. The system is generated in such a manner, so as to allow the calculation of several different element meshes consisting of quad-elements. The following element meshes are investigated: 4x4 elements, 8x8 elements and 16x16 elements. The calculation is made with the program ASE.

More precise description: NAFEMS: Linear Statics Benchmarks, Vol. 1

Results: x-displacement for point A. Theoretical value 0.185 m analytically. Benchmark value 0.1838 m (fine mesh, 8-node quad-element). Deviation of program ASE from the anlytical result in case of 4x4 elements 35.1 %, in case of 8x8 2.8 %, in case of 16x16 elements 0 %.

Further results in the DAT-file.

• ic18e.dat