The reliability of contact coupling simulation results was evaluated. Deformations were simulated using FEM and non-contact rough surface scanning. Milled aluminium specimens were loaded normally to their base with a flat steel stamp deforming only a few single microasperities. In such cases there is no guarantee that the microasperity shapes used in 3D modelling will correspond to those in the place of stamp action. The density of points describing the shapes is important. A scatter of the values of the parameters describing the contact characteristics can occur depending on the specimen’s area selected for loading with the stamp. Using the experimental-computational method it was determined how much the contact characteristic simulation results can differ from the experimental results.

评估了接触耦合仿真结果的可靠性。使用 FEM 和非接触式粗糙表面扫描来模拟变形。铣削的铝试样通常被加载到它们的底座上，用一个扁平的钢印模只变形几个单一的微凹凸不平。在这种情况下，无法保证 3D 建模中使用的微凹凸形状将对应于印章作用位置的微凹凸形状。描述形状的点的密度很重要。描述接触特性的参数值可能会出现分散，这取决于选择用于加载印章的试样区域。使用实验计算方法可以确定接触特性模拟结果与实验结果的差异程度。