Structural Response of Fluid Containing Tanks to Penetrating Projectiles (Hydraulic Ram) - A Comparison of Experimental and Analytical Results
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Authors
Ball, R.E.
Subjects
Aircraft Survivability
Aircraft Vulnerability
Hydraulic Ram
Fluid-Structure Interaction
Aircraft Vulnerability
Hydraulic Ram
Fluid-Structure Interaction
Advisors
Date of Issue
1976-05
Date
1976-05
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This report presents the results of a study of (1) the fluid hydraulic ram pressures in a fluid-containing-tank caused by a penetrating projectile, and (2) the transient response of the entry and exit walls of the tank due to the fluid pressure. The experimental and analytical hydraulic ram and structural response programs at the Naval Weapons Center (NWC) and the Naval Postgraduate School (NPS) are briefly described. The computer analyses for the fluid pressure at the entry and exit walls and the transient entry and exit wall strains are described in detail. Comparisons are made of the predicted wall strains with the circular entry wall strains, measured at NPS, and the square exit wall strains, measured at NWC. Good agreement in the form of the strain histories is obtained, but the magnitudes of the predicted strains are smaller than those of the measured strains. This study contributes to the knowledge of the hydraulic ram phenomenon and associated fluid-structure interaction, and should provide some useful information for the design of aircraft fuel tanks.
Type
Technical Report
Description
Series/Report No
Department
Identifiers
NPS Report Number
NPS-57Bp76051
Sponsors
Naval Weapons Center, China Lake, California and the Joint Technical Coordinating Group/Aircraft Survivability
Funder
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.