NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Analysis of a transport fuselage section drop testTransport fuselage section drop tests provided useful information about the crash behavior of metal aircraft in preparation for a full-scale Boeing 720 controlled impact demonstration (CID). The fuselage sections have also provided an operational test environment for the data acquisition system designed for the CID test, and data for analysis and correlation with the DYCAST nonlinear finite-element program. The correlation of the DYCAST section model predictions was quite good for the total fuselage crushing deflection (22 to 24 inches predicted versus 24 to 26 inches measured), floor deformation, and accelerations for the floor and fuselage. The DYCAST seat and occupant model was adequate to approximate dynamic loading to the floor, but a more sophisticated model would be required for good correlation with dummy accelerations. Although a full-section model using only finite elements for the subfloor was desirable, constraints of time and computer resources limited the finite-element subfloor model to a two-frame model. Results from the two-frame model indicate that DYCAST can provide excellent correlation with experimental crash behavior of fuselage structure with a minimum of empirical force-deflection data representing structure in the analytical model.
Document ID
19850002092
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fasanella, E. L.
(Kentron International, Inc., Hampton Va., United States)
Hayduk, R. J.
(NASA Langley Research Center Hampton, VA, United States)
Robinson, M. P.
(NASA Langley Research Center Hampton, VA, United States)
Widmayer, E.
(Boeing Commercial Airplane Co. Seattle, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Publication Information
Publication: Res. in Struct. and Dyn., 1984
Subject Category
Aircraft Design, Testing And Performance
Accession Number
85N10400
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available