Operation Upshot-Knothole Nevada Proving Ground, March-June 1953. Project 3.3. Test and on the Loading of Horizontal Cylindrical Shapes. Report to the Test Director,
WRIGHT AIR DEVELOPMENT CENTER WRIGHT-PATTERSON AFB OH
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This report deals with pre- and post-test work on Air Force Structures Program, Project 3.3, Tests on the Loading of Horizontal Cylindrical Shapes. The general objective of this test was to increase the knowledge of blast loadings on structures of cylindrical shape. The specific objectives were to determine the effect of 1 shock strength, 2 size i.e., scaling, 3 ground proximity, and 4 three-dimensionally. Five horizontal cylinders of various size and distance above ground were situated in the Mach region of both Shots 9 and 10. Instrumentation consisted of pressure gages and strain gages, the latter representing the output of a net force measurement system. The analysis of pressure gage data obtained from a vertical cylindrical storage tank, included as part of Air Force Project 3.26.1. Test of the Effects on POL Installations WT-736, is presented in this report. These results indicate that the finite size of the tank did not affect the front face loading appreciably the loading on the back side built up somewhat more rapidly than predicted for a two-dimensional cylinder.
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