论文信息 - SHORT COMMUNICATIONS FINITE ELEMENT REPRESENTATION AND PRESSURE STIFFNESS IN SHELL STABILITY ANALYSIS

SHORT COMMUNICATIONS FINITE ELEMENT REPRESENTATION AND PRESSURE STIFFNESS IN SHELL STABILITY ANALYSIS

SUMMARY In the light of recent contributions by Batozl and Hibbitt: two aspects of finite element formulations for shell stability analysis are examined. The first is the consistency of the shell strain-displacement equations employed; the second is the proper representation of ‘follower forces’-pressures that are always normal to the deforming surface. Numerical studies of an arch indicate that improper representation of either of these factors can have a significant effect on predicted buckling loads.

J. F. Abel | R. H. Gallagher | R. Gallagher | J. Abel

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