Element Locking Archives - LSDYNA

Element Locking

Locking in a quadrilateral element

Locking in linear quadrilateral elements occurs when they are subjected to bending. For simplicity, letês examine the simplest case of…

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Element Locking

Under some circumstances the displacements calculated by the finite element method are orders of magnitude smaller than they should be,…

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Constraint counting

A deìnitive way to determine whether locking will occur is the Babuska- Brezzi condition, but it is di cult to…

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A pathological case of volume locking in triangular elements

Consider triangle 1, in Figure 1, which is deìned by nodes 1 and 2 on the x axis, and node…

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