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Delta launch vehicle isogrid structure NASTRAN analysisStructural analysis applications of NASTRAN to the isogrid structure of the Delta launch vehicle are discussed. Isogrid is a method employed to stiffen the booster cylindrical shell surface by integrally machining ribs and skin from one piece of metal. The ribs are arranged in a repetitive equilateral triangular pattern; this results in a structural surface whose stiffness is orthogonally isotopic. For that structure, both static and general instability buckling analyses are described and the theoretical results are compared to test data. One of the parameters included in the analysis is the effect of pressure loadings on the buckling allowable load. In addition, a description of a supplementary computer program is presented.
Document ID
19720025227
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Knighton, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1972
Publication Information
Publication: NASTRAN: Users' Experiences
Subject Category
Structural Mechanics
Accession Number
72N32877
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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