On the Stiffening of the Edge of the Hole in Orthogonally Aeolotropic Plate with a Circular Hole : stiffened with the coaming plate

Abstract

As a means of reducing the circumferential stress concentration in plate, the coaming plate is usually introduced around the edge of the hole to supplement the doubling plate. This paper deals with the effect of the coaming plate on the stress distribution in orthogonally aeolotropic plate under uniform tension. That is, we assume the coaming plate is a circular ring and by using the following formula for the edge stress of the plate, namely, [numerical formula] the problem can be solved theoretically and simply. In conclusion, the larger the Young's modulus of the coaming plate is, and the greater its height is, and the greater its thickness is, the more the circumferential stress is reduced.