NDLI: Full-scale testing and analysis of fuselage structure

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Full-scale testing and analysis of fuselage structure

Content Provider	NASA Technical Reports Server (NTRS)
Author	Miller, M. Wilkins, K. E. Gruber, M. L. Worden, R. E.
Copyright Year	1994
Description	This paper presents recent results from a program in the Boeing Commercial Airplane Group to study the behavior of cracks in fuselage structures. The goal of this program is to improve methods for analyzing crack growth and residual strength in pressurized fuselages, thus improving new airplane designs and optimizing the required structural inspections for current models. The program consists of full-scale experimental testing of pressurized fuselage panels in both wide-body and narrow-body fixtures and finite element analyses to predict the results. The finite element analyses are geometrically nonlinear with material and fastener nonlinearity included on a case-by-case basis. The analysis results are compared with the strain gage, crack growth, and residual strength data from the experimental program. Most of the studies reported in this paper concern the behavior of single or multiple cracks in the lap joints of narrow-body airplanes (such as 727 and 737 commercial jets). The phenomenon where the crack trajectory is curved creating a 'flap' and resulting in a controlled decompression is discussed.
File Size	1845765
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950008071
Archival Resource Key	ark:/13960/t26b22m3r
Language	English
Publisher Date	1994-09-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Panels Fatigue Life Crack Tips Damage Assessment Inspection Pressure Reduction Fasteners Strain Gages Aircraft Design Commercial Aircraft Pressurizing Residual Strength Crack Propagation Finite Element Method Nonlinearity Fuselages Lap Joints Flapping 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	Article

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