NDLI: Static test induced loads verification beyond elastic limit (Document No: 19960028573)

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Static test induced loads verification beyond elastic limit (Document No: 19960028573)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Verderaime, V. Harrington, F.
Copyright Year	1996
Description	Increasing demands for reliable and least-cost high performance aerostructures are pressing design analyses, materials, and manufacturing processes to new and narrowly experienced performance and verification technologies. This study assessed the adequacy of current experimental verification of the traditional binding ultimate safety factor which covers rare events in which no statistical design data exist. Because large, high-performance structures are inherently very flexible, boundary rotations and deflections under externally applied loads approaching fracture may distort their transmission and unknowingly accept submarginal structures or prematurely fracturing reliable ones. A technique was developed, using measured strains from back-to-back surface mounted gauges, to analyze, define, and monitor induced moments and plane forces through progressive material changes from total-elastic to total inelastic zones within the structural element cross section. Deviations from specified test loads are identified by the consecutively changing ratios of moment-to-axial load.
File Size	372455
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960028573
Archival Resource Key	ark:/13960/t5v74cb1c
Language	English
Publisher Date	1996-04-19
Access Restriction	Open
Subject Keyword	Structural Mechanics Deformation Deflection Measuring Instruments Axial Loads Modulus of Elasticity Design Analysis Static Tests Stress-strain Diagrams Stress-strain Relationships Safety Factors Fatigue Materials Strain Measurement Manufacturing Loads Forces 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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