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Preliminary 2-D shell analysis of the space shuttle solid rocket boostersA two-dimensional shell model of an entire solid rocket booster (SRB) has been developed using the STAGSC-1 computer code and executed on the Ames CRAY computer. The purpose of these analyses is to calculate the overall deflection and stress distributions for the SRB when subjected to mechanical loads corresponding to critical times during the launch sequence. The mechanical loading conditions for the full SRB arise from the external tank (ET) attachment points, the solid rocket motor (SRM) pressure load, and the SRB hold down posts. The ET strut loads vary with time after the Space Shuttle main engine (SSME) ignition. The SRM internal pressure varies axially by approximately 100 psi. Static analyses of the full SRB are performed using a snapshot picture of the loads. The field and factory joints are modeled by using equivalent stiffness joints instead of detailed models of the joint. As such, local joint behavior cannot be obtained from this global model.
Document ID
19880014605
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Knight, Norman F., Jr. (NASA Langley Research Center Hampton, VA, United States)
Gillian, Ronnie E. (NASA Langley Research Center Hampton, VA, United States)
Nemeth, Michael P. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
November 1, 1987
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-100515
NAS 1.15:100515
Accession Number
88N23989
Funding Number(s)
PROJECT: RTOP 506-43-41-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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