HyperSizer Published Paper

"A Novel Multiscale Physics Based Progressive Failure Methodology for Laminated Composite Structures"

Authors: Evan J. Pineda and Anthony M. Waas, Brett Bednarcyk, Craig Collier and Phillip Yarrington

Abstract: A variable fidelity, multiscale, physics based finite element procedure for predicting
progressive damage and failure of laminated continuous fiber reinforced composites is in-
troduced. At every integration point in a finite element model, progressive damage is
accounted for at the lamina-level using thermodynamically based Schapery Theory. Sepa-
rate failure criteria are applied at either the global-scale or the micro-scale in two different
FEM models. A micromechanics model, the Generalized Method of Cells, is used to eval-
uate failure criteria at the micro-level. The stress-strain behavior and observed failure
mechanisms are compared with experimental results for both models.

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AIAA-2008-1929-634_Evan_prog_failure.pdf (4MB)