UNCLASSIFIED 



Security Classification 



fSo 



DOCUMENT CONTROL DATA - R&D 



■ity claasilication o/ lille, body ol abstract and indexing annotation must 6e entered when the 



1 ORIGINATIN G ACTIVI'^Y (Corporate author) 



David Taylor Model Basin 



. REPORT SECUR1 TY CL^ 



Unclassified 



2b GROUP 



3. REPORT TITLE 



Evaluation of Stresses in Web-Stiffened Cylindrical Sandwich Shells Subjected to 

 Uniform External Pressure 



4- DESCRIPTIVE NOTES (Type ol reporl and inclusive dates) 



5 AUTHORfSJ (La 



Nott, James A. 

 Ward, Gerald D. 



6- REPO RT DATE 



September 1965 



7a. TOTAL NO. OF PAGES 



15 



7b. NO. OF REFS 



3 



8a. CONTRACT OR GR* 



9a. ORIGINATOR'S REPOF 



b. PROJECT NO. S-F013 03 02 



<= Task 1956 



2092 



10 AVAILABILITY/LIMITATION NOTICES 



No Limitation 



11. SUPPLEMENTARY NOTES 



12. SPONSORING MILITARY ACTIVITY 



Bureau of Ships 

 Department of Navy 



13. ABSTRACT 



Four cylindrical web-stiffened sandwich models were 

 tested under external hydrostatic pressure. Experimental 

 strains were recorded on both outside and inside shells 

 and compared with theoretical strains computed from 

 existing formula developed at the David Taylor Mode.l Basin. 

 The differences between experimental and theoretical results 

 were within the range of experimental error. 



DD /.A°N^''e. 1473 



UNCLASSIFIED 



Security Classification 



