The Stresses in Cemented Joints

Abstract The determination of the stresses in cemented lap joints has become of practical importance because of the development of new methods which permit a strong bond to be established between wood, plastic, or metal sheets, or combinations of them by the use of cement adhesives. In this paper, the problem is divided into two parts, (a) determination of the loads at the edges of the joint; (b) determination of the stresses in the joint due to the applied loads. Solutions are obtained for two limiting cases, i.e., where the cement layer is so thin that its effect on the flexibility of the joint may be neglected; and where the joint flexibility is mainly due to that of the cement layer. In both cases expressions are obtained for the shearing stresses in the cement, and for the normal stresses in the cement in a direction perpendicular to the plane of the joint.