Progressive failure of plain weave textiles under multiaxial loading
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Progressive failure predictions were made for a plain weave textile unit cell under five different specified in-plane strain loadings using two different progressive failure models. The first model, referred to as the volume degradation model, accounts for failure in the textile by degrading elastic properties at quadrature points when stresses exceed allowable values. The second model, referred to as the cohesive zone model, accounts for failure using interfacial elements governed by a cohesive traction-separation law that are inserted into likely crack planes in the mesh. It was found that both models predicted similar initial failure behaviors in the textile, but predicted different behaviors for subsequent failure events as loading was increased. It was felt that the predictions of the cohesive zone model were more representative of the actual failure that would develop in the textile. By comparing the progressive failure predicted by the cohesive zone model for the different load cases, distinct behaviors were noted associated with normal and shear loading. A low degree of interaction was observed between these characteristic behaviors for the examined multiaxial load cases. © 2013 by W. Ross McLendon and John D. Whitcomb.
author list (cited authors)
Ross Mclendon, W., & Whitcomb, J. D.