Abstract

A multi-scale contact method that can deal with tribological problems in a broad context is proposed. It is based on a numerical homogenization technique which allows to take into account a heterogeneous material and the generation of wear under contact conditions. Globally and locally, a finite element method is used. More precisely, at the micro scale, a behavior is computed from the microstructure and then injected into the macro model through contact stiffnesses. The approach being completely integrated between the macro and micro scales, a relocalization of the contact forces on the microstructure allows wear generation at the scale of the heterogeneities. An example is given in this paper where with respect to a reference case, the proposed method proves to be faster and as consistent.

Graphic Abstract

中文翻译：

---

考虑材料异质性和磨损的多尺度接触方法

摘要

提出了一种可以在广泛背景下处理摩擦学问题的多尺度接触方法。它基于一种数值均质化技术，该技术允许考虑异质材料和接触条件下磨损的产生。全局和局部使用有限元方法。更准确地说，在微观尺度上，行为是从微观结构计算出来的，然后通过接触刚度注入到宏观模型中。该方法在宏观和微观尺度之间完全集成，微观结构上接触力的重新定位允许在不均匀性尺度上产生磨损。本文给出了一个示例，其中相对于参考案例，所提出的方法被证明更快且一致。

图形摘要