"The dynamic behavior of eccentrically stiffened rectangular plates is studied by the finite element method. The addition of stiffeners to a plate structure is a common method of increasing the rigidity of the structure with a minimum of weight increase. However, this stiffened plate configuration does not easily lend itself to analysis. This study is an approach to finding a rational method by which the dynamic behavior of such a stiffened plate structure may be determined. The governing differential equations for the finite element model are derived and the stiffness and mass matrices for the plate and stiffener elements are presented in terms of the element properties. A comparison of the natural frequencies and mode shapes of a series of finite element models is made with those obtained from tests conducted on square, aluminum, stiffened plates. Also included is the computer program from which the frequencies of the finite element model were determined, along with the input and output data corresponding to one of the test problems. Some difficulties were encountered in matching the finite element model boundary conditions with the test plate supports. Where boundary conditions were matched successfully, the finite element model and test plate values of the lower natural frequencies were in close agreement. Other general trends of stiffened plate behavior which became evident from the test plate data were also predicted by the finite element computer program. Results were also obtained which compare favorably with those reported elsewhere in the literature"--Abstract, pages iii-iv.
Senne, Joseph H.
Cunningham, Floyd M.
Best, John, 1925-2015
Gillett, Billy E.
Hansen, Peter G., 1927-2010
Andrews, William A., 1922-2009
Civil, Architectural and Environmental Engineering
Ph. D. in Civil Engineering
National Defense and Education Act Title IV Fellowship
University of Missouri--Rolla
x, 172 pages
© 1971 Charles Stuart Ferrell, All rights reserved.
Dissertation - Open Access
Structural analysis (Engineering) -- Computer programs
Strains and stresses -- Mathematical models
Finite element method
Engineering -- Mathematical models
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Electronic OCLC #
Link to Catalog Record
Ferrell, Charles Stuart, "Dynamic behavior of eccentrically stiffened plates" (1971). Doctoral Dissertations. 1849.