摘要
对某天然气管道的有关材料性能和裂纹参量进行了试验测定和试验数据的数理统计处理,建立了管线有关参量的统计分布函数的概率模型。对该管道主要随机变量的统计分析表明,裂纹深度和材料的断裂韧性表现为威布尔分布,裂纹深长比表现为对数正态分布,材料的屈服强度和拉伸强度表现为正态分布。
The probabilistic natures of pipe parameters of a pipeline were analysed by means of statistic treatment based on the experimental results of material behaviors and defects of pipeline. It has been found that the depth of crack and fracture toughness of material can be expressed by weibull distribution, ratio of depth to length of crack and strength of material can be expressed by logarithmic normal distribution and normal distribution respectively.
出处
《压力容器》
北大核心
2005年第8期14-17,39,共5页
Pressure Vessel Technology
基金
国家自然科学基金(50374056)
陕西省自然科学专项基金(2002-45/01JK131)资助项目。
关键词
管道
参量
统计分析
pipeline
parameter
statistic analysis
