圆锥形壳的弹塑性屈曲

在外部和轴向压力共同作用下,进行短、薄壁、低碳圆锥形钢壳的屈曲分析。将试验得到的等效圆柱形钢壳在轴压和表面压力下的屈曲结果与已有的圆锥钢壳在轴压和表面压力下的屈曲结果进行了对比。给出了数值和试验结果,以及试验、数值模型及承载能力的计算过程。研究结果表明,等效圆柱形钢壳的概念对于低度规圆锥并不适用。得到了关于高度规圆锥形壳和其等效圆柱形壳的稳定曲线。这些曲线不仅提供了强度包络,也得到了屈服包络和塑性区。研究优化了由Esslinger和vanIm-pe提出的设计工具,使之适用于外部压强下圆锥形壳的弹塑性屈曲分析。

On Elastic-Plastic Buckling of Cones

The paper considers the buckling of short,and relatively thick,mild steel conical shells subjected to the combined action of external pressure and axial compression.Past results on axially compressed cones and on cones subjected to hydrostatic external pressure are compared with fresh test results on equivalent,axially compressed cylinder and with the equivalent cylinder subjected to external hydrostatic pressure.The paper contains both numerical and experimental results.Details about experiments,numerical ...