Gerasymchuk P. Calculation of stresses and intensity factors in lamellar elements of the constructions with contact of arc cracks faces

Stress-strain state of isotropic lamellar elements of the constructions with curvilinear (on arc of a circle) through-the-thickness crack has been investigated in the thesis. Crack faces are in the conditions of smooth contact under action of uniformly distributed bending moments or two concentrated bending moments applied on the medial perpendicular of crack. Double-sided bend of a plate with two identical cracks under uniformly distributed moments has been investigated with taking into consideration faces contact, geometric and mechanical problem symmetry. Decision of tasks given as superpozicii of decision of two tasks: flat task of theory of resiliency and technical theory of bend of plates. Equalization for finding of contact effort is got between the banks of cracks, an analytical decision is found and obvious expressions are writtenin for complex potentials of flat task and task of bend of plates, coefficients of intensity of efforts and moments.