Multiscale Modeling, Simulation and Optimization of Cutting Tools Regarding their Tribological Behavior (C06*)

对隧道掘进机刀具的磨损过程进行了从微观到宏观尺度的数值模拟。在微观尺度上，基于离散化的典型微结构建立了仿真模型。在宏观尺度上，建立了描述磨损的唯象模型来模拟刀具部件。本文所开发的数值模型基于子项目C5中获得的实验结果进行了验证，并应用于使用数值优化策略识别改进的刀具概念。

The wear process of cutting tools of tunnel boring machines is modeled across the scales from the microstructure to the macroscopic tool components. At the microscale, simulation models are developed based on discretized representative microstructures. At the macroscale, phenomenological models for the description of wear are developed to simulate the tool components. The numerical models developed here are validated based on the experimental results obtained in Subproject C5 and applied to identify improved cutting tool concepts using numerical optimization strategies.