Some Real Variable Expressions for Stress Distributions in Orthotropic Plates

摘要

A number of solutions of Lekhnitskii's method for determining stress distributions in orthotropic plates are presented in a form containing only real variables. The expressions are exact solutions, giving stresses at the circular boundary as well as on the principal axes. The solutions are presented as an aid to the general designer of anisotropic structures requiring expressions which can be worked out on a pocket calculator. The general method yields simple expressions for stresses in several cases where a circular hole or a circular insert causes stress concentrations, but the formulas contain complex variables complicating their evaluation unless use can be made of a FORTRAN 4 programmed computer.