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Application of X-Ray Microtomography and Dual Kriging to the Analysis of High Performance Composites

Anna Madra, Francois Trochu and Piotr Breitkopf

Abstract


Accurate description of the complex architecture of fibrous woven reinforcements in composites is required for detailed numerical simulation of material manufacture, especially of textile compression and impregnation. Volume imaging techniques like X-ray microtomography provide information on realistic geometry, but require optimization to be efficient in practical applications. We propose a dual kriging-based method for reconstructing the continuous model of the textile reinforcement applied to data extracted from micro-tomographic scans. The smoothness of the model is controlled by the nugget effect. The discretization scheme based on the curvature energy of the fiber tow cross-section. This approach decreases the computer memory requirements by a factor of 500 compared to the initial X-ray scan.

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