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The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Membrane Elements for Polygonal Cylindrical Reinforced by Rings and Stiffeners.

AD686097

Publication Date	1969
Personal Author	Beckers, P.
Page Count	56
Abstract	The report is concerned with the development of membrane elements for cylindrical, fuselage-type structures. The proposed models include the out of plane bending modes of the reinforcing rings, an important feature in some applications to real situations. The performance of model 4 is tested on a circular cantilevered cylinder, loaded by a radial concentrated force on the end ring. Deflections and stresses are compared with previous analyses and test results. The conclusions are that, while good deflections are already obtained with simple models, more elaborate models are required to avoid stress output interpretations. Model 5 is satisfactory from this point of view. (Author)
Keywords	Stiffened cylinders Membranes Fuselages Mathematical models Stresses Matrix algebra Belgium Skin(Structural member) Reinforcement(Structures)
NTIS Subject Category	46E - Structural Mechanics 51C - Aircraft
Corporate Authors	Liege Univ (Belgium) Laboratoire de Techniques Aeronautiques Et Spatiales
Document Type	Technical Report
NTIS Issue Number	196912
Contract Number	AF 61(052)-892

Membrane Elements for Polygonal Cylindrical Reinforced by Rings and Stiffeners.

Membrane Elements for Polygonal Cylindrical Reinforced by Rings and Stiffeners.
AD686097

Publication Date	1969
Personal Author	Beckers, P.
Page Count	56
Abstract	The report is concerned with the development of membrane elements for cylindrical, fuselage-type structures. The proposed models include the out of plane bending modes of the reinforcing rings, an important feature in some applications to real situations. The performance of model 4 is tested on a circular cantilevered cylinder, loaded by a radial concentrated force on the end ring. Deflections and stresses are compared with previous analyses and test results. The conclusions are that, while good deflections are already obtained with simple models, more elaborate models are required to avoid stress output interpretations. Model 5 is satisfactory from this point of view. (Author)
Keywords	Stiffened cylinders Membranes Fuselages Mathematical models Stresses Matrix algebra Belgium Skin(Structural member) Reinforcement(Structures)
NTIS Subject Category	46E - Structural Mechanics 51C - Aircraft
Corporate Authors	Liege Univ (Belgium) Laboratoire de Techniques Aeronautiques Et Spatiales
Document Type	Technical Report
NTIS Issue Number	196912
Contract Number	AF 61(052)-892