Plate buckling loads by the boundary element method

✍ Scribed by S. Syngellakis; A. Elzein

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 752 KB
• Volume: 37
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620371008

✦ Synopsis

A boundary element solution of the plate buckling problem is extended and refined to accommodate any combination of loading and support conditions. It is complemented by a similar boundary element formulation yielding the prebuckling membrane state of stress for non-uniform distributions of edge loads. Both continuous and discontinuous models of various orders of approximation for boundary as well as domain unknowns have been employed and their effect on the accuracy of the solution algorithm assessed. The computer code incorporates automatic mesh generation schemes for both the boundary and the domain through which a wide range of plate geometries can be discretized and analysed. Further, gains in both efficiency and accuracy are achieved by taking advantage of any support and loading symmetries and reducing the formulation to a standard eigenvalue problem. A large number of plate examples are solved to optimize the choice of various modelling parameters and to establish the reliability of the proposed analysis.