摘要
随着工业的迅速发展,压力管道在化学化工领域占据着很重要的地位,但是由于腐蚀等问题的存在,所以通过力学的角度对管道进行剩余强度的分析是很有必要的。首先运用ANSYS软件分析了管道在不同腐蚀缺陷下的极限承载能力,并将数值结果与相应试验工况对比,验证了数值模拟的准确性。然后,用ANSYS软件管道腐蚀缺陷模型进行数值模拟,分析不同腐蚀缺陷尺寸对管道等效应力的影响。由于在分析管道剩余强度时需要考虑腐蚀缺陷尺寸的影响,而在Ansys软件中分析不同腐蚀缺陷尺寸模型需要在GUI界面中反复操作,十分繁琐,为了简化分析流程、节省时间。基于APDL语言并结合GUI界面,采用交互方式对软件进行二次开发,将管道模型的腐蚀缺陷尺寸进行参数化控制。
With the rapid development of industry, the pressure pipeline in the field of chemical and chemical engineering occupies a very important position. But because of the existence of corrosion and other issues, it is necessary to analysis the remaining strength of the pipeline through mechanical perspective. Firstly, the ultimate load carrying capacity of the pipeline under different corrosion defects is simulated by ANSYS software. The numerical results are compared with the corresponding test conditions, and the accuracy of software simulation is verified. Then, the influence of different corrosion size on the equivalent stress of the pipe was analyzed by ANSYS software. Analysis of different corrosion defect size models in ANSYS software is cumbersome, and requires repeated operation in the GUI interface. In order to simplify the analysis process and save time, in this paper, the secondary development of the software is based on APDL language and GUI interface, and the corrosive defect size of the pipe model is parameterized.
作者
郑恒伟
杨国欣
王东哲
ZHENG Hengwei;YANG Guoxin;WANG Dongzhe(School of Mathematics and Physics,Chongqing University of Science ＆ Technology,Chongqing 401331,China;Chongqing Material Research Institute,Chongqing 400707,China;School of Aerospace Engineering,Tsinghua University,Beijing 100084,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2018年第11期11075-11079,11084,共6页
Journal of Functional Materials
基金
国家自然科学基金资助项目(11602042)
重庆市科委基础与前沿研究资助项目(cstc2015jcyjA50010)
重庆市博士后特别资助项目(Xm2016034)
重庆科技学院校内基金资助项目(CK2016B16)
