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运用强光引爆喷涂于结构表面的光敏炸药对结构加载的方法,对承受短脉冲均匀外压的锥壳进行了实验研究。测得了锥壳内壁的应变随时间变化的曲线,得到了两种不同几何尺寸的铝质锥壳动态失稳破坏的临界冲量值。将实验结果与较长脉冲载荷作用下柱壳的结果作了比较。
The method of loading the structure with the photosensitive explosives sprayed onto the surface of the structure with strong light is used to conduct the experimental research on the conical shell under the uniform external pressure with short pulse. The curve of the strain on the inner wall of conical shell with time is obtained. The critical impulse values of the dynamic instability of aluminum conical shell with two different geometrical dimensions are obtained. The experimental results are compared with the results of cylindrical shell under the action of longer pulse loads.