On the contact width in generalized plain strain JKR model for isotropic solids

Adhesive contact model between an elastic cylinder and an elastic half space is studied in the present paper, in which an external pulling force is acted on the above cylinder with an arbitrary direction and the contact width is assumed to be asymmetric with respect to the structure. Solutions to the asymmetric model are obtained and the effect of the asymmetric contact width on the whole pulling process is mainly discussed. It is found that the smaller the absolute value of Dundurs’ parameter β or the larger the pulling angle θ, the more reasonable the symmetric model would be to approximate the asymmetric one. The project supported by the National Natural Science Foundation of China (10672165, 10732050, 10721202), KJCX2-YW-M04, CAS Innovation Program and Start Fund for Returning Overseas person.