文献类型：期刊文献

中文题名：压力管道内表面裂纹的蠕变断裂模糊分析有限元方法

英文题名：Finite Element Method Used in Fuzzy Analysis of Creep Rupture Resulted from Crack on Inner Surface of Pressure Piping

作者：钟万里[1];王伟[1];林介东[1];刘长虹[2]

机构：[1]广东电网公司电力科学研究院,广州510080;[2]华东理工大学承压系统与安全教育部重点实验室,上海200237

年份：2013

卷号：50

期号：5

起止页码：71

中文期刊名：化工设备与管道

外文期刊名：Process Equipment & Piping

收录：CSTPCD

基金：南方电网公司科技项目(K-GD2012-379)

语种：中文

中文关键词：蠕变;表面裂纹;模糊;有限元法

外文关键词：creep; surface crack; fizzy; finite element method

摘要：针对压力管道内表面的裂纹问题,采用蠕变断裂模糊有限元法进行分析。首先根据蠕变断裂理论,建立管道的蠕变断裂力学模型;然后根据蠕变参数所具有的模糊不确定性,用模糊有限元的参数处理方法,建立了压力管道的蠕变断裂模糊有限元模型;最后对计算结果进行了分析和讨论,说明了该方法的有效性。
With respect to the cracks occurred on inner surface of pressurized cylinders, creep fractural finite element method is used in fuzzy analysis. Firstly, with the creep fi＇acture theory, a creep fracture mechanics model was built. Then, considering the fuzziness in creep parameters, creep fracture fuzzy finite element method was proposed. Finally, the results from the method were analyzed and discussed, and it was concluded that this method is efficient for the analysis of the issue presented herein.