吉林大学学报(工学版)

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New approach for modeling objects of functional gradient materials

Wang Su, Chen Nan-fei, Zhu Yu-ming, Gao Feng   

  1. Department of Automobile Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2005-07-16 Revised:2005-09-11 Online:2006-05-01 Published:2006-05-01
  • Contact: Wang Su

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Abstract: A new approach is proposed for modeling heterogeneous objects made of functional gradient materials. The theory of discrete pilingup is applied to model the geometry of the object and an algorithm named “volume” is employed to build the discrete geometrical models in CATIA. The functional gradient material modeling is based on the theory of gradient sources, by which the geometrical features in threedimensional space can be selected as a grading source and the composition function of a material can be obtained, thus the material composition information of the object can be determined. To meet the demands of material modeling, three existing Boolean operations are expanded to six. Two design cases by this approach are presented.

Key words: computer application, functional gradient materials, solid modeling, discrete pileup, grading source, Boolean operators

CLC Number: 

  • TP391.72
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