Abstract
A methodology to constitute a finite element model of a wove fabric composite is investigated on the basis of its X-ray CT images. The composite is discretized into fixed grid/mesh elements. Assuming the material property of the element is to be related with average pixel value of the area corresponding with the element in the X-ray CT image, we derive a formulation of the inverse problem to identify Young's modulus of the element. The relationship between the pixel value and Young's modulus is described by means of the sigmoid function, the parameters of which are determined so as to make the static behavior analyzed by the finite element model identical with that observed by experiments. A numerical example follows the formulation to prompt readers' understanding.
