Patent Document ID: 8489368
Application ID: 12674307
Patent Flag: 1

Claim One:
1. A method for determining a deformability of an examination body, comprising the steps: i) acquiring using a computer a geometry of at least one test body and forming a finite element structure of the geometry of the test body, ii) assigning the test body to a specific geometric class, wherein a form factor that characterizes the geometry of the test body is allocated to the test body, iii) calculating the deformability of the test body on the basis of a finite element structure, iv) defined shaping of a reference body consisting of a selected material by means of a test experiment as a function of at least one process parameter, v) evaluating shaped regions of the reference body in order to determine geometric parameters, vi) decoupling the geometric parameters from absolute network coordinates of the reference body, the geometric parameters thereby being normalized, vii) creating a mathematical model in which the normalized geometric parameters, the at least one process parameter and a material specific parameter for the material of the reference body are combined, viii) calculating the deformability of the test body for a spatially defined region by means of a predetermined number of simulations based on the mathematical model from step vii), ix) comparing a result from step viii) with a result from step iii), x) repeating steps viii) and ix), a scaling of the normalized geometric parameters with a fit factor being respectively undertaken in step viii) until the result from viii) corresponds as well as possible to the result from iii), xi) linking the scaled parameters from step x) to the form factor from step ii) such that a matrix is formed therefrom, and xii) correlating the examination body with the form factor from step ii) such that the mathematic model based on the matrix from step xi) is transferred to the examination body in order to forecast the deformability thereof wherein test experiment consists of the cruciform punch test that is carried out using a cuboid reference body, and in which the cruciform punch test has geometric parameters in the form of radii at the cruciform punch (Ri), regions of curvature (Bi) and geometric measures of the cruciform punch, specifically R 1 : arc radius at the cruciform punch, R 2 : lead in radius at the cruciform punch, R 3 : radius at an outer face of the cruciform punch, R 4 : radius at an inner face of the cruciform punch, B 1 : concave-convex region of curvature, B 2 : convex-convex region of curvature, B 3 : concave-concave region of curvature, B 4 : convex-concave region of curvature, T: depth of the cruciform punch, D 1 : length of the cruciform punch, D 2 : face width of the cruciform punch, and D 3 : cross dimension of the cruciform punch.