弾塑性アーチの面内非対称飛び移り座屈の実験

概要

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An experimental system is devised to investigate the asymmetric snap-through process of a pin-ended elastic-plastic arch under a concentrated load. A special device is used to bear the compressive reaction in the initial stage and the tensile reaction after the snap-through at the arch ends. In the system, the deflection at the loaded point is increased gradually and the resulting transverse load and thrust are continuously measured. The deformed shape of the arch line and the strain at certain locations are measured at several stages during the snap-through. The numerical results in which the reversed plasticity is taken into account are found to agree well with the experimental ones, while the results neglecting the reversed plasticity give a far smaller deflection after the snap-through.
一般社団法人日本機械学会の論文
1989-02-25