单端夹持外压圆筒稳定性的试验研究

Experiment Research on the Stability of Cylinder Clamped at One End under External Pressure

研究了单端夹持的圆筒受均匀外压的失稳实验。结果表明当为短圆筒时(n>2),按Mises理论计算的临界压力与实测值相比较有非常大的误差,理论计算结果不能描述这种状况。当为长圆筒时(n=2),临界压力的理论计算值与实测值趋于吻合,这与Mises的推导是一致的。

In this paper, an experiment research on the stability of one side clamped cylinder under external pressure was made. The test results show that for a short cylinder (n>2), the critical pressure value of Mises theoretical calculation is a very big error compared with the surveying value. The critical pressure value of Mises theoretical calculation can not describe this condition. For a long cylinder (n=2), the theoretical value and the surveying value tend to be the same. It is consistent with Mises′ theory.