3.4.3 Degenerated elements within a substructure

Product: ABAQUS/Standard  

Element tested

CPS8   

Feature tested

The ability to incorporate degenerated elements into a substructure definition is tested.

Problem description

A planar substructure is formed from standard CPS8 elements and CPS8 elements degenerated into 6-node triangles. Both displacement degrees of freedom are retained at selected nodes on the substructure that is constrained as depicted below, and a displacement of 0.2 in the x-direction is prescribed for the three nodes along x=1.0.

Results and discussion

The results are identical to the analytical results where a stress of 6 × 106 develops in the direction of extension.

Input files

psupdgn1.inp

Uses CPS8 and degenerated CPS8 elements.

psupdgn1_gen.inp

Substructure generation file referenced in the analysis psupdgn1.inp.