Download or read book Vibration and Buckling Tests of Stringer stiffened Cylindrical Shells Subjected to Non uniform Axial Loading written by A. Bornstein and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Buckling Experiments Experimental Methods in Buckling of Thin Walled Structures Volume 2 written by Josef Singer and published by John Wiley & Sons. This book was released on 2002-08-12 with total page 1140 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Edited by Josef Singer, the world's foremost authority on structural buckling. * Time-saving and cost-effective design data for all structural, mechanical, and aerospace engineering researchers.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Vibrations of Axially Loaded Stiffened Cylindrical Shells with Elastic Restraints written by Aviv Rosen and published by . This book was released on 1975 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: A linear theory is derived for calculation of the influence of elastic edge restraints, on the vibrations and buckling of stiffened cylindrical shells. The stiffeners are considered 'smeared' and the edge restraints can be axial, radial, circumferential or rotational. Extensive computations are performed for special kinds of stringer-stiffened shells, and the theoretical predictions are compared with experimental results. A method of definition of equivalent elastically restrained boundary conditions by use of vibration tests is discussed. Application of this technique to tests on 10 shells significantly reduces the scatter in the ratio of experimental to predicted buckling loads.
Download or read book Vibrations of Axially Loaded Stiffened Cylindrical Shells Part I Theoretical Analysis written by Josef Singer and published by . This book was released on 1974 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of analysis and a computer program were developed for determination of the frequencies and mode shapes of the free vibrations of stiffened cylindrical shells. The shells are stiffened by closely spaced stringers and rings, have different boundary conditions, and are subjected to either a static axial load or a hydrostatic pressure. The stiffeners are considered 'smeared' over the shell. The system of equations which was obtained is solved by a method known as the 'exact method'. The theoretical investigation includes a study of the variation in frequencies and mode shapes with increase in the static load until buckling. The results of the present analysis are compared to those of other methods which appear in the literature, and good agreement is obtained. (Author).
Download or read book Shell Stability Handbook written by L.A. Samuelson and published by CRC Press. This book was released on 2003-09-02 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides engineering tools for the design of shells against buckling. A simplified approach is given in a number of cases which are not addressed in current design codes.
Download or read book Buckling of Shells written by Ekkehard Ramm and published by Springer. This book was released on 1982-09 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin shells are very popular structures in many different branches of engineering. There are the domes, water and cooling towers, the contain ments in civil engineering, the pressure vessels and pipes in mechanical and nuclear engineering, storage tanks and platform components in marine and offshore engineering, the car bodies in the automobile industry, planes, rockets and space structures in aeronautical engineering, to mention only a few examples of the broad spectrum of application. In addition there is the large applied mechanics group involved in all the computational and experimental work in this area. Thin shells are in a way optimal structures. They play the role of·the "primadonnas" among all kinds of structures. Their performance can be extraordinary, but they can also be very sensitive. The susceptibility to buckling is a typical example. David Bushnell says in his recent review paper entitled "Buckling of Shells - Pitfall for DeSigners": "To the layman buckling is a mysterious, perhaps even awe inspiring phenomenon that transforms objects originally imbued with symmetrical beauty into junk".
Download or read book Creep Buckling of Cylindrical Shells Subjected to External Pressure written by Chester Earl Willey and published by . This book was released on 1969 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrations of Axially Loaded Stiffened Cylindrical Shells Part Ii Experimental Analysis written by Aviv ROSEN and published by . This book was released on 1973 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: To complement a parallel theoretical analysis experiments were conducted on seven different clamped cylindrical aluminum shells: one isotropic shell, four shells stiffened by external stringers, and two strengthened by external rings. In all the experiments smooth experimental curves of frequency versus axial load were obtained for different modes of vibration. The agreement between the experimental and the corresponding theoretical curves is good, but in most of the cases the experimental frequencies were slightly lower than the theoretical ones. As in previous experiments, experimental buckling loads were lower than the calculated ones. A possibility of nondestructive determination of the buckling load, by means of vibrations measurements was considered. (Modified author abstract).
Download or read book Buckling of Stiffened Cylinders in Axial Compression and Bending written by James P. Peterson and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buckling data review for stiffened cylinder failures during axial compression and bending.
Download or read book Bulletin on Stability Design of Cylindrical Shells written by and published by . This book was released on 1987 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Buckling of Axially Compressed Stringer Stiffened Cylindrical Shells with and Without Cutouts written by Douglas A. Nelson and published by . This book was released on 1977 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of stringer eccentricity, shell length, cutouts, and boundary conditions are studied for cylindrical shells under axial compression. Four generalized simple support and four clamped boundary conditions are considered. Buckling loads are determined through the STAGS computer code with its linear bifuration branch and smeared stringer theory. Linear prebuckling deformations and stresses as well as eccentric loading are considered in this study. STAGS incorporates an energy formulation and a finite difference technique. Results of the present theory when compared to linear classical theory show that a rigorous prebuckling analysis has a significant influence on the analysis of stringer stiffened cylinders. It was found that cutouts do not significantly change a stringer stiffened shell's sensitivity to in-plane boundary conditions but cutouts cause a substantial reduction in critical loads for externally stiffened shells. The detrimental effects of cutouts are less apparent in cylindrical shells with internal stringers. The u = O axial restraint is the most important factor in buckling of axially compressed stringer stiffened cylinders. (Author).
Download or read book Buckling of Imperfect Stiffened Cylindrical Shells Under Axial Compression written by Josef Singer and published by . This book was released on 1970 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Axial buckling tests on machined integrally stiffened cylindrical shells were carried out. Complete mappings of the shell imperfections and the prebuckling growth were obtained. The lightly ring-stiffened shells behaved in a manner similar to the isotropic shells that were previously tested. For these shells, the predominant prebuckling deformation consisted of a half-wave in the axial direction with several circumferential waves. The similarity of the lightly ring-stiffened shells and the isotropic ones suggests that the uniqueness of the buckling mode for stiffened shells may not greatly influence the prebuckling behavior. The heavily ring-stiffened shells showed a sizable amount of short wave length axisymmetric growth before buckling. Buckling in all cases resulted in an asymmetric pattern. The stringer-stiffened shells showed a prebuckling behavior also similar to the isotropic results. However, the buckling pattern consisted of longer axial wave lengths. Correlation of the experimentally obtained buckling loads with linear buckling theory showed good agreement in most cases. (Author).
Download or read book Buckling of Thin Metal Shells written by J.G. Teng and published by CRC Press. This book was released on 2006-06-28 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-walled metal shell structures are highly efficient in their use of material, but they are particularly sensitive to failure by buckiling. Many different forms of buckling can occur for different geometries and different loading conditions. Because this field of knowledge is both complex and industrially important, it is of great interest and concern in a wide range of industries. This book presents a compilation and synthesis of a wealth of research, experience and knowledge of the subject. Information that was previously widely scattered throughout the literature is assembled in a concise and convenient form that is easy to understand, and state-of-the-art research findings are thoroughly examined. This book is useful for those involved in the structural design of silos, tanks, pipelines, biodigestors, chimneys, towers, offshore platforms, aircraft and spacecraft. Buckling of Thin Metal Shells is essential reading for designers, researchers and code writers involved with thin-walled metal shell structures.
Download or read book The Buckling Analysis of Imperfection Sensitive Shell Structures written by Johann Arbocz and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report describes several types of analyses used to predict the buckling behavior of imperfect shell structures. These analyses are used to study one well characterized stringer-stiffened cylindrical shell. The ability of each analysis to predict the actual experimental buckling load is examined. In addition, the information obtained from each analysis is used when proceeding to a higher level of analysis complexity. Based upon this study, a procedure for calculating a "knockdown" factor is proposed, to replace the traditional empirical knockdown factor."
Download or read book Vibrations and Buckling of Eccentrically Loaded Stiffened Cylindrical Shells written by Aviv Rosen and published by . This book was released on 1974 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of eccentricity of loading on the vibrations and buckling of stringer-stiffened shells is studied. An established nonlinear theory, which takes into account nonlinear prebuckling is applied and the predictions are compared with experimental results. Two families of shells, one heavily stiffened and the other moderately stiffened, were tested. In each family there are three identical shells each with different eccentricity of loading. In all cases different in-plane boundary conditions are considered and correlated with experimental results.
