A Brief Look at *MAT_NONLOCAL: A Possible Cure for Erosion Illness?
The computational mechanics literature dealing with damage and failure is filled with work addressing what is
termed mesh regularization techniques. These various techniques seek to eliminate, or minimize, the numerical
artifact of strain localization. LS-DYNA® provides a technique for attempting to regularize meshes with damage and
failure via the keyword *MAT_NONLOCAL. The non-local implementation in LS-DYNA is based on the work of
Pijaudier-Cabot and Bazant (1987). The non-local treatment basically attempts to average damage/failure values of
neighboring elements to minimize the mesh dependency of the results.
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