FOREWORD 



This report represents a summary of structural research efforts by- 

 many groups within and outside the United States Navy. Significant con- 

 tributions during the past 15 years have been made by personnel at the 

 David Taylor Model Basin, under the direction of Dr. E. Wenk, Jr., 

 Mr. E. E. Johnson, Commander S. R. Heller, U.S.N. , and Dr. A. H. 

 Keil, and by submarine hull designers at the Bureau of Ships, notably, 

 Messrs. J. Vasta, O. Oakley, F. Dunham, and A. Stavovy. The results 

 of theoretical studies on shell structures conducted at the Polytechnic 

 Institute of Brooklyn under financial support by the Office of Naval 

 Research and the Bureau of Ships have made available to the naval archi- 

 tect some well-known methods of analysis which have proven very 

 successful in the field of thin-walled aircraft structures; these investi- 

 gations were under the general supervision of Professors N. J. Hoff and 

 V. L. Salerno and are presently being continued under the supervision of 

 Professor J. Kempner. Finally, our British counterparts at the Naval 

 Construction Research Establishment, Dunfermiline, Scotland, namely, 

 Mr. S. R. Kendrick and Dr. A. Bryant formerly at NCRE have also made 

 significant contributions toward a better understanding of the behavior and 

 more scientific design of submarine hull structures. Throughout the 

 discussion, recognition is given to those individuals who have made 

 specific contributions in this field. 



This paper is an extension of a series of lectures presented by the 



