| 摘要 |
According to one embodiment of the invention, a method for determining deformation of a surface of a material is provided. The method includes receiving, at a computer, an elastic deformation range and a plastic deformation range of the material. The method also includes modeling a regio n of the material with a mesh. The mesh includes a plurality of elements. The method also includes determining, by performing a finite element analysis on the mesh by the computer, a displacement for at least one point on each of t he elements. The displacement results from a set of modeled boundary conditions . The finite element analysis includes recurrently approximating the modulus o f elasticity for each element according to the elastic deformation range and t he plastic deformation range. The act of approximating is based on a value of strain calculated from a previously calculated element displacement.
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