NDLI: Residual strength pressure tests and nonlinear analyses of stringer-and frame-stiffened aluminum fuselage panels with longitudinal cracks

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Residual strength pressure tests and nonlinear analyses of stringer-and frame-stiffened aluminum fuselage panels with longitudinal cracks

Content Provider	NASA Technical Reports Server (NTRS)
Author	Rouse, Marshall Starnes Jr., James H. Young, Richard D. Ambur, Damodar R.
Copyright Year	1998
Description	The results of residual strength pressure tests and nonlinear analyses of stringer- and frame-stiffened aluminum fuselage panels with longitudinal cracks are presented. Two types of damage are considered: a longitudinal crack located midway between stringers, and a longitudinal crack adjacent to a stringer and along a row of fasteners in a lap joint that has multiple-site damage (MSD). In both cases, the longitudinal crack is centered on a severed frame. The panels are subjected to internal pressure plus axial tension loads. The axial tension loads are equivalent to a bulkhead pressure load. Nonlinear elastic-plastic residual strength analyses of the fuselage panels are conducted using a finite element program and the crack-tip-opening-angle (CTOA) fracture criterion. Predicted crack growth and residual strength results from nonlinear analyses of the stiffened fuselage panels are compared with experimental measurements and observations. Both the test and analysis results indicate that the presence of MSD affects crack growth stability and reduces the residual strength of stiffened fuselage shells with long cracks.
File Size	1432570
Page Count	20
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19990021207
Archival Resource Key	ark:/13960/t9d55kb5j
Language	English
Publisher Date	1998-01-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Panels Damage Assessment Structural Stability Aluminum Pressure Distribution Axial Loads Residual Strength Crack Propagation Load Tests Finite Element Method Nonlinearity Fuselages Internal Pressure Structural Analysis Stringers 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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