正方形孔を有する固定正方形板の弾塑性せん断座屈に関する実験的研究

概要

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Elasto-plastic shear buckling strength and post-buckling behavior of square steel plates with square holes are investigated experimentally. The plates are subjected to uniform shear deformations and clamped along plate edges. The square holes are centrally located. Ratios of the hole length a to the plate length l, a/l, are 0.3, 0.5 and 0.7. Comparisons are made with previously reported analytical results. Elastic stresses along the plate edges and the hole edges show reasonable agreement with the results from finite element analysis except corners of the plates. For elasto-plastic buckling loads, test results show fairly good agreement with analytical results. For ultimate loads of the plates with the ratio a/l=0, 0.3 and 0.5, the test results are less than the analytical results because of the deflections caused by the buckling. For the case of a/l=0.7, the test result is greater than the analytical results because of no deflection caused prior to plastic failure.
福山大学の論文