Paper number 827

THE BINARY MODEL - A COMPUTATIONAL APPROACH TO TEXTILE COMPOSITES

B. N. Cox¹, R. M. McMeeking², and M. A. McGlockton²

1Rockwell Science Center, 1049 Camino Dos Rios, Thousand Oaks, CA 91360, U.S.A.
2Department of Mechanical and Environmental Engineering, University of California, Santa Barbara, Santa Barbara, CA 93106, U.S.A.

Summary

This paper describes the development of a computer code called the Binary Model for modeling textile composites. The model has the features that it needs no assumption of periodicity in the textile structure, can deal with significant volumes of a structure (typically ~ 103 - 104 mm3), treats arbitrary external loads including loads with large spatial gradients, invokes arbitrary nonlinear constitutive laws, and, in its most recent version, computes thermal strains and temperature distributions as well as stress distributions. Here the formulation of the model is reviewed and some of its capabilities illustrated by computations of the effects of random disorder in the textile structure on stress distribution in the elastic regime and simulations of the progression to ultimate failure in a textile composite in which some unusual failure phenomena are known to occur.

Keywords

textiles, computational models, nonlinearity, failure, structural modeling.