| 摘要 |
<p>PROBLEM TO BE SOLVED: To automatically discriminate a material constituting an actual object. SOLUTION: When a predetermined load is impressed to an actual object, load directional and load orthogonal actual deformation quantitiesΔx1 andΔy1 of deformation according to the load are detected, while in impression of the predetermined load, load direction and load orthogonal theoretical deformation quantitiesΔx2 andΔy2 of deformation according to a Young's modulus E and a Poisson's ratioνof the object are computed by structure analysis using voxels. The Young's modulus E and the Poisson's ratioνare changed (S7, S9) so that the theoretical deformation quantitiesΔx2 andΔy2 are brought close to the actual deformation quantitiesΔx1 andΔy1, and when a difference between the theoretical deformation quantitiesΔx2 andΔy2 and the actual deformation quantitiesΔx1 andΔy1 reaches predetermined valuesΔx andΔy or less respectively (S6, S8), the material constituting the object is specified by retrieving a database on the basis of the Young's modulus E and a Poisson's ratioνat that time (S10, S11).</p> |
