点击次数：

论文类型：期刊论文

发表时间：2018-01-01

发表刊物：AEROSOL SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI

卷号：52

期号：2

页面范围：222-233

ISSN号：0278-6826

摘要：A dynamic model has been developed to simulate the normal impact of an elastic-plastic adhesive sphere with a flat surface. The model combines the extended JKR theory considering both adhesion and plastic deformation with Newton's motion equation to describe the rebound behavior of the impacting particles. Theoretical expressions for velocity, contact time and restitution coefficient are obtained. The models were validated by comparison with the experimental results. Especially, a new empirical critical capture velocity expression was proposed which can be used to determine whether the particle will stick or bounce off the surface after the impact.