A general solution for stress resultants and moments around holes in unsymmetrical laminates

摘要

The complex variable method of Lekhnitsii and Savin can be applied for solving stress concentration problems in symmetric laminates. Although significant amount of literature is available on heterogeneous allotropic plates, the stress concentration problems have not been addressed in it until Becker gave his complex potential method for plate problems with bending extension coupling. The present work is an extension of Becker's solution for elliptical hole problem for unsymmetrical laminates. In this paper, it is aimed to bring out a general solution to determine the stress resultants and moments around holes of any shape with a simple mapping function under arbitrary biaxial loading condition.