Mechanics Research Communications ( IF 2.4 ) Pub Date : 2021-05-12 , DOI: 10.1016/j.mechrescom.2021.103699 Antonio Doménech-Carbó
Oblique impact between rigid bodies is usually described in terms of the coefficients of normal and tangential restitution. When the contact between bodies occurs under elasto-plastic conditions, the normal coefficient of restitution can be ordinarily taken as essentially constant. Several anomalous results reported by Louge and Adams (Anomalous behavior of normal kinematic restitution in the oblique impacts of a hard sphere on an elasto-plastic plate. Phys. Rev. E 65 (2002) 021303), however denoted a significant variation of this coefficient with the incidence angle under certain conditions. This anomalous behavior is interpreted here within the independent friction and restitution closure assuming that these mechanisms operate in both the tangential and normal direction. Theoretical predictions are in satisfactory agreement with reported ‘anomalous’ data.
中文翻译:
独立的摩擦恢复方法分析倾斜冲击下正常运动恢复中的异常
通常用法向和切向恢复系数来描述刚体之间的倾斜冲击。当物体之间的接触在弹塑性条件下发生时,正常的恢复系数通常可以视为基本恒定。Louge和Adams报告了几个异常结果(在硬塑料球体的硬球体的倾斜撞击中,正常运动恢复的异常行为。Phys。Rev. E 65(2002)021303),但是表明该系数有显着变化在一定条件下具有入射角。假设这些机制在切线方向和法线方向上均起作用,则在独立的摩擦和恢复闭合中解释了这种异常行为。