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摘要翻译：
计算了粘弹性球体碰撞时的法向恢复系数与材料性能和碰撞速度的关系。从简单的论证中可以清楚地看出，在纯排斥相互作用的粒子碰撞中，在球心距离达到半径之和之前，粒子的接触稍有松动，也就是说，粒子只有在失去与碰撞伙伴的接触后才恢复其形状。这种影响在早期的计算中被忽略了，从而错误地导致吸引力，从而低估了恢复原状系数。因此，我们发现了一个新的依赖于影响率的恢复系数。
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英文标题：
《Coefficient of Restitution for Viscoelastic Spheres: The Effect of
Delayed Recovery》
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作者：
Thomas Schwager and Thorsten Poeschel
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Materials Science 材料科学
分类描述：Techniques, synthesis, characterization, structure. Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术，合成，表征，结构。结构相变，力学性质，声子。缺陷，吸附质，界面
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
The coefficient of normal restitution of colliding viscoelastic spheres is computed as a function of the material properties and the impact velocity. From simple arguments it becomes clear that in a collision of purely repulsively interacting particles, the particles loose contact slightly before the distance of the centers of the spheres reaches the sum of the radii, that is, the particles recover their shape only after they lose contact with their collision partner. This effect was neglected in earlier calculations which leads erroneously to attractive forces and, thus, to an underestimation of the coefficient of restitution. As a result we find a novel dependence of the coefficient of restitution on the impact rate.
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PDF链接：
https://arxiv.org/pdf/708.1434
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