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|1. (WO2017150087) MATERIAL SHAPE SIMULATION DEVICE, MATERIAL SHAPE SIMULATION METHOD, AND THREE-DIMENSIONAL WOVEN FIBER ARTICLE MANUFACTURING METHOD|
THE UNIVERSITY OF TOKYO
|Title:||MATERIAL SHAPE SIMULATION DEVICE, MATERIAL SHAPE SIMULATION METHOD, AND THREE-DIMENSIONAL WOVEN FIBER ARTICLE MANUFACTURING METHOD|
[Problem] To provide a material shape simulation device that more accurately simulates deformation of a three-dimensional woven fiber material. [Solution] A material shape simulation device 100 equipped with: an orientation vector field generation unit 210 that generates a model shape orientation vector field with respect to a three-dimensional mesh with a model shape of a three-dimensional woven material wherein a plurality of two-dimensional woven fabrics comprising X-threads extending in the X-direction and Y-threads extending in the Y-direction are stacked on one another by means of Z-threads extending in the Z-direction; a parameterization unit 220 that searches for gradient vectors for calculating, from the model shape orientation vector field, a material shape orientation vector field, which is an orientation vector field for the material shape prior to deformation of the model shape; and an orientation vector updating unit 230 that updates the model shape orientation vector field by applying, between the model shape orientation vector field and the material shape orientation vector field, a condition under which the volume is preserved and a condition under which the X-threads and the Y-threads respectively do not expand or contract.