Strategy for modeling eight-harness satin weave carbon/carbon composites subjected to thermal loads

1996, American Institute of Aeronautics and Astronautics, Inc. Analysis of textile weave composites is very complicated due to the intricate three-dimensional geometry inherit to them. Complications due to carbon/carbon material properties adds further difficulty to the analysis. The purpose of this paper is to describe a strategy for modeling the response of eight-harness satin weave carbon/carbon composites subjected to thermal loads. Computational requirements for analyzing the satin weave unit cells are shown to be very large and exhibit an exigent need for an approximate method to lessen these requirements. To this end, a reduced satin weave mesh using approximated boundary conditions was proposed which uses considerably less computational resources than the satin weave unit cell. This approximate technique was studied and compared to results obtained using a complete unit cell. It was determined that accurate predictions of thermally induced stresses within the cross-over regions of the composite could be predicted quite accurately.

Strategy for modeling eight-harness satin weave carbon/carbon composites subjected to thermal loads Conference Paper