摘要
经过计算分析,得出了杆件纵横弯曲时临界压力的普遍表达式。同时,从欧拉应力出发,应用可靠性理论,导出了杆件在热屈曲时临界温度和临界长度的计算公式,并用实例说明了应用。这为杆件热屈曲问题的计算,提供了一种新的分析方法;为热输管道的稳定性分析,提供了依据。
Through calculation and analysis, We obtained the general expression of the critical Pressure during longitudinal and transverse bending of bars, derived, on the basis of Euler stress,the calculating formula of critical temperature and length during Iongitudinal and transverse bending of bars by the reliabilty theory, and described its appilcation with examples. It provides a new analysis method for the calculation of thermal buckling problems of bars, and a base for stability analysis of heating transportation pipelines.
出处
《西南石油学院学报》
CSCD
1993年第1期90-96,共7页
Journal of Southwest Petroleum Institute
关键词
弯曲
热屈曲
临界温度
杆件
应力
Longitudinal and transverse bending
thermal buckling
critical temperature
reliability theory
