Square or triangle elements are mostly used to generate a mesh for a simulation.
When two or more nodes of one element fall on the same coordinate the element is called a degenerated element.
This way a square can become a triangle, a line or even a point.
Depending on the used program the multiple nodes will be joined automatically to one node or need to cleaned up manually.
Degenerated elements exist in volume elements as well.
A hexahedron can degenerate to a prism or tetrahedron.
Degenerated elements lead to wrong results in the simulation or even block the start of an simulation.

Degenerated Element in Plastic Industry

Simulation: When two points of a square fall onto the same coordinates a degenerated element is built.

Related topics:

This glossary of plastic industry is provided by PLEXPERT Canada Inc.
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