Adhesive impact of micromechanical surface contact (original) (raw)

In this study, a new generalized adhesion theory of solid sphere is developed to investigate adhesive impact of head-disk surfaces. On the basis of this adhesion theory, deformation and restoration work done is evaluated for multiasperity adhesive impact of head-disk surfaces. From the plot of coefficient of restitution with mean separation, its found COR decreases gradually, with decrement of mean separation approaching to zero value which represents unique characteristic for head-disk impact. It indicates there is possibility of seizure of head-disk due to high adhesion at the interface for high impact.