Patch test (finite elements): Difference between revisions

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The '''patch test''' in the [[finite element method]] is a simple indicator of the quality of a [[finite element method|finite element]], developed by [[Bruce Irons (engineer)|Bruce Irons]].

The patch test uses a partial differential equation on a ___domain consisting from several elements set up so that the exact solution is known. Typically, in mechanics, the prescribed exact solution consists of displacements that vary as linear functions in space (called a constant [[Strain (materials science)|strain]] solution). The elements pass the patch test if the finite element solution is the same as the exact solution.