NDLI: A parametric shell analysis of the shuttle 51-l srb aft field joint

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A parametric shell analysis of the shuttle 51-l srb aft field joint

Content Provider	NASA Technical Reports Server (NTRS)
Author	Davis, Randall C. Hughes, Robert M. ,. IV Bowman, Lynn M. Jackson, Brian J.
Copyright Year	1990
Description	Following the Shuttle 51-L accident, an investigation was conducted to determine the cause of the failure. Investigators at the Langley Research Center focused attention on the structural behavior of the field joints with O-ring seals in the steel solid rocket booster (SRB) cases. The shell-of-revolution computer program BOSOR4 was used to model the aft field joint of the solid rocket booster case. The shell model consisted of the SRB wall and joint geometry present during the Shuttle 51-L flight. A parametric study of the joint was performed on the geometry, including joint clearances, contact between the joint components, and on the loads, induced and applied. In addition combinations of geometry and loads were evaluated. The analytical results from the parametric study showed that contact between the joint components was a primary contributor to allowing hot gases to blow by the O-rings. Based upon understanding the original joint behavior, various proposed joint modifications are shown and analyzed in order to provide additional insight and information. Finally, experimental results from a hydro-static pressurization of a test rocket booster case to study joint motion are presented and verified analytically.
File Size	1721495
Page Count	50
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910005316
Archival Resource Key	ark:/13960/t49p7zc2q
Language	English
Publisher Date	1990-10-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Joints Junctions O Ring Seals Rocket Engine Cases Clearances Blowing High Temperature Gases Space Shuttle Boosters Computer Programs Space Transportation System Flights Accident Investigation Space Shuttle Mission 51-l Steels Walls Failure Loads Forces Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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