论文信息 - Dynamic buckling of a simple elastic-plastic model under pulse loading

Dynamic buckling of a simple elastic-plastic model under pulse loading

Abstract The dynamic buckling of an elastic-plastic imperfection-sensitive model subjected to rectangular- and triangular-shaped loading pulses is examined to provide some insight into the dynamic buckling behaviour of structures. The loading pulse is expressed as a function of the horizontal displacement, which allows an analytical method to be used for determining the stability domains for both pulses. The estimates obtained are compared with some previously published results on the dynamic elastic-plastic buckling of the same model under a step loading. It transpires that for the pulse loading of models with large imperfections dynamic instability occurs either elastically or plastically depending on the pulse duration, while for a step loading only an elastic instability is possible for the parameters examined.

Norman Jones | D. Karagiozova | N. Jones | D. Karagiozova

[1] John W. Hutchinson,et al. Dynamic buckling estimates. , 1966 .

[2] John W. Hutchinson,et al. On the Postbuckling Behavior of Imperfection-Sensitive Structures in the Plastic Range , 1972 .

[3] A. L. Florence,et al. Dynamic Pulse Buckling: Theory and Experiment , 1987 .

[4] Norman Jones,et al. On the dynamic buckling of a simple elastic-plastic model , 1980 .

[5] D. Jordan,et al. Nonlinear Ordinary Differential Equations: An Introduction for Scientists and Engineers , 1979 .

[6] Bernard Budiansky,et al. DYNAMIC BUCKLING OF ELASTIC STRUCTURES: CRITERIA AND ESTIMATES**This work was supported in part by the National Aeronautics and Space Administration under Grant NsG-559, and by the Division of Engineering and Applied Physics, Harvard University , 1967 .

[7] D. Danielson. Dynamic buckling loads of imperfection- sensitive structures from perturbation procedures. , 1969 .