The effect of friction on the stamp’s flatsole coming off the sole base
The study provides an algorithm for precise determining of the contact pressure under a flat-solestamp that is pressed into an elastic laminated multilayer base with any finite number of layers. We have taken into account the friction between the stamp and the base whose contact was one-sided. The algorithm can solve fundamentally new contact problems of elastic multilayer media. As an example, we have solved the problem of a cylindrical flat-sole stampindented in a two-layer base for two cases. In the first case, in contrast to the second, friction was not taken into account. A distinctive feature of the two-layer base is its top layer that is much stiffer than the lower one. We have found that in the first case the two-layer base partially comes off the stamp, while in the second caseit does not. Ultimately, the suggested algorithm can reduce the safety factors for strength and rigidity in calculations of real multilayer structures.Consequently, it can reduce consumption of materials and cost of the structures.