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首页> 外文期刊>International journal of mechanics and materials in design >Combined sticking: a new approach for finite-amplitude Coulomb frictional contact
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Combined sticking: a new approach for finite-amplitude Coulomb frictional contact

机译：组合粘贴：有限幅度库仑摩擦接触的新方法

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摘要

Engineering-level accuracy of discretization methods for frictional contact originates from precise representation of discontinuous frictional and normal interaction laws and precise discrete contact techniques. In terms of discontinuous behavior in the quasi-static case, two themes are of concern: the normal interaction (i.e. impact) and the jumps in tangential directions arising from high frictional values. In terms of normal behavior, we use a smoothed complementarity relation. For the tangential behavior, we propose a simple and effective algorithm, which is based a stick predictor followed by corrections to the tangential velocity. This allows problems with impact and stick-slip behavior to be solved with an implicit code based on Newton-Raphson iterations. Three worked examples are shown with comparisons with published results. An extension to node-to-face form in 3D is also presented.
机译：摩擦接触的离散化方法的工程级精度源于不连续摩擦和正常交互规律的精确表示和精确的离散接触技术。在准静态案例中的不连续行为方面，两个主题是值得关注的：从高摩擦值产生的正常相互作用（即冲击）和切向方向的跳跃。在正常行为方面，我们使用平滑的互补关系。对于切向行为，我们提出了一种简单有效的算法，其基于粘贴预测器，然后校正到切向速度。这允许通过基于Newton-Raphson迭代的隐式码来解决影响和粘滑行为的问题。显示了三个工作的例子，并与已发表的结果进行了比较。还呈现了3D中的节点面对面形式的扩展。

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