论文标题
摩擦纤维的离散元素方法模型
A Discrete Element Method model for frictional fibers
论文作者
论文摘要
我们提出了一种离散元素方法算法，用于在摩擦接触中模拟弹性纤维。将纤维建模为通过考虑伸长，弯曲和扭转力的弹簧相互关联的圆柱段的链。圆柱之间的摩擦接触是使用经常用于颗粒材料模拟的Cundall和Strack模型对模型进行建模的。讨论了用于模拟的物理量表，触点的确定和跟踪以及算法。在涉及很少或许多接触点的不同情况下进行的测试与实验或理论预测进行了比较。
We present a Discrete Element Method algorithm for the simulation of elastic fibers in frictional contacts. The fibers are modeled as chains of cylindrical segments connected to each other by springs taking into account elongation, bending and torsion forces. The frictional contacts between the cylinders are modeled using a Cundall and Strack model routinely used in granular material simulations. The physical scales for simulations, the determination and the tracking of contacts, and the algorithm are discussed. Tests on different situations involving few or many contact points are presented and compared to experiments or to theoretical predictions.
