Paper number 671

A THREE-DIMENSIONAL FINITE ELEMENT DEFORMATION ANALYSIS OF PLAIN WEAVE WOVEN COMPOSITE SUBJECTED TO TENSILE LOAD

S. Rangaraju¹ and A. K. Roy²

1Department of Civil Engineering, University of Dayton,
300 College Park, Dayton, OH 45469
2Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/MLBC Bldg. 654, 2941 P St Room 136, WPAFB,
OH 45433-7750

Summary

A three-dimensional displacement based finite element (FEM) analysis of the deformation of plain weave woven composite is performed to analyze the deformation behavior subjected to tensile loading. Two commercial FEM packages (ABAQUS( and IDEAS() are used to check accuracy of the predicted data. The displacement field predicted by these two packages matched with each other with in less than one percent. Thus, displacement based commercial FEM packages, although may not provide accurate stress field for woven composites near the yarn crimping location, however, appear to provide reliable displacement field. It is inferred from the predicted displacement field that, even the composite is subjected to pure tension, the woven yarns induce twisting action in the composite. Further, if the composite is symmetrically stacked together, the yarns aligned in the applied load direction tend to delaminate from each other at their contact location.

Keywords

plain weave, woven fabric composite, three-dimensional analysis, finite element analysis.