An application of theoretical solutions about cylindrical shells with small openings

Stress concentrations about thin cylindrical shells with small openings are reconsidered front a nerv angle. There is a sort of special internal relat ion between theoretical solutions about cylindrical shells,vith large openi ngs and one,with small openings. Using this relation, the extent of applyin g the theory about small openings to engineering practice is estimated agai n, thus an idea of how to use this theory and a nerv appraisal of the appli cation of theoretical solutions about cylindrical shells with small opening s to engineering practice are given.