ABSTRACT
Studying of contact problems with friction has a long history. One of the first is for a plane contact problem in the case of full sliding [1] when frictional stress is linearly proportional to contact pressure. The case of a frictional contact with stick and slip is considered in [2]. In practice, in many cases frictional stress is a nonlinear function of pressure. Depending on material properties the apparent friction coefficient, which is equal to the ratio of the frictional stress and pressure may increase, decrease, or be practically constant as contact pressure increases. In this chapter we will take a look at some aspects of frictional contacts.
