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Explain the terms, preprocessor, processor and postprocessor
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Preprocessing

  • Define the geometric domain of the problem.

  • Define the element types to be used.

  • Define the material properties of the elements.

  • Define the geometric properties of the elements (length, area, and the like).

  • Define the element connectivities (mesh the model).

  • Define the physical constraints (boundary conditions). Define the loadings.

Processor

  • computes the unknown values of the primary field variable(s)

  • computed values are then used by back substitution to compute additional, derived variables, such as reaction forces, element stresses, and heat flow.

Postprocessing

  • Postprocessor software contains sophisticated routines used for sorting, printing, and plotting selected results from a finite element solution.
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