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Critical buckling loads of some prismatic plate assemblies
Prismatic plate assemblies include closed and open section struts, stiffened panels with open or closed section longitudinal stiffeners and longitudinally stiffened tubes. Recent theoretical advances have made possible the computation of critical buckling loads (or natural frequencies) for such assemblies. The answers obtained are 'exact', in the sense that only the usual thin plate assumptions are made, so long as the ends of each component plate are simply supported or the longitudinal half-wavelength of the buckling mode is short compared with the length of the assembly. Initially, the theory only applied to assemblies of uniformly compressed, flat, isotropic plates. However, results can now be computed for assemblies which include curved anisotropic plates which carry in-plane bending and uniform in-plane shear and transverse stresses. Existing computer programs enable one to investigate the critical buckling behaviour of a vast range of interesting plate assemblies. So far, results obtained cover only a relatively small part of this range. In this paper, a summary is given of the more interesting conclusions drawn from these results.
Critical buckling loads of some prismatic plate assemblies
Prismatic plate assemblies include closed and open section struts, stiffened panels with open or closed section longitudinal stiffeners and longitudinally stiffened tubes. Recent theoretical advances have made possible the computation of critical buckling loads (or natural frequencies) for such assemblies. The answers obtained are 'exact', in the sense that only the usual thin plate assumptions are made, so long as the ends of each component plate are simply supported or the longitudinal half-wavelength of the buckling mode is short compared with the length of the assembly. Initially, the theory only applied to assemblies of uniformly compressed, flat, isotropic plates. However, results can now be computed for assemblies which include curved anisotropic plates which carry in-plane bending and uniform in-plane shear and transverse stresses. Existing computer programs enable one to investigate the critical buckling behaviour of a vast range of interesting plate assemblies. So far, results obtained cover only a relatively small part of this range. In this paper, a summary is given of the more interesting conclusions drawn from these results.
Critical buckling loads of some prismatic plate assemblies
Kritische Knickbelastung prismatischer Plattenbaugruppen
Williams, F. (author) / Wittrick, W. (author) / Plank, R. (author)
BUCKLING OF STRUCTURES - SYMP. ; 17-26
1974
10 Seiten, 8 Bilder, 13 Quellen
Conference paper
English
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