摘要
根据管道的穿透性裂纹与非穿透性裂纹起裂准则,考虑管道的材料参数、几何参数以及温度载荷参数,建立了管道的二次三阶矩几何非线性随机有限元方程,对其表面裂纹这一随机机械损伤进行了可靠度计算,并与Monte-Carlo有限元方法进行了比较。结果表明,该可靠性研究方法适用于管道钢管的质量评价,对评价管道的可靠性具有重要意义。
Based on the crack-making principle of penetrating crack and the material parameters,geometry parameters and loading parameters. The paper presents the geometry non-linear stochastic finite element function of pipeline's square-third order matrix,and the reliability on the crack of random machinery damage was calculated,then it was showed that the reliable research was truce and had a significance for appraising the pipeline reliability.
出处
《油气储运》
CAS
北大核心
1999年第10期21-24,61,共5页
Oil & Gas Storage and Transportation
关键词
管道
裂纹
随机有限元
可靠性
油气管道
pipeline,crack,stochastic finite element,method,reliability research
