6月10日(木) 15:30 -- 17:00 Vladimir Migdalski (京都大学大学院理学研究科) `` Problems of crack, near the edge of box shell '' <研究発表要旨> We consider the state of stress in a box shell formed by two semi-infinite plates jointed at right angle. The box shell is weakened by a crack coming out into the edge. Using a generalized integral transforms method, the problem is reduced to a singular integral equation over a finite interval with the kernel of Mellin convolution type . An exacted solution has been obtained in quadratures by reducing the original problem to the Riemannian problem. Asymptotics of the obtained solution in the intersection point of the crack and the edge of a box is investigated. Numerical results for the stress intensity factors in the apex of crack are given.