Klimchuk T. Contact interaction of an elastic strip with semi-infinite punches.

The contact problems of the theory of elasticity are considered for a strip with rigidly fixed lower line, when one or two semi-infinite punches are pressed on its upper line. The interaction between an elastic strip and one semi-infinite punch with a straight-line basis or with a rounded edge and two semi-infinite punches with straight-line bases is studied in cases of smooth and frictional contact. The contact with adhesion and slip is investigated for one semi-infinite punch with a straight-line basis. Distributions of contact stresses, normal and shear stresses on the fixed strip line, normal displacements of the load-free part of the unfixed strip line are investigated in dependence on a friction coefficient, a slip direction, a rounding parameter of the punch edge, a distance between the punches. In the problem of indentation of the punch with the rounded edge into an elastic strip the distribution of principal shear stress in the strip is investigated.