CAJ | 학술논문

由于管道输送介质易燃、易爆等特点，管道一旦失效，发生泄漏，输送介质将迅速扩散，遇到火源就会剧烈燃烧，甚至爆炸，其后果是灾难性的。为了防止管道意外事故的发生，采取适当的方法对含体积型缺陷管道的剩余强度作出评价。基于含体积型缺陷管道的受力情况，应用 ABAQUS 有限元分析软件模拟缺陷管道的力学行为，计算含体积型缺陷管道的失效压力，分析缺陷长度、缺陷深度以及缺陷宽度与失效压力的关系，得出管道允许存在的最大缺陷尺寸。依据该尺寸对含体积型缺陷管道作出继续使用、降压、修复、更换等方案选择，以此保证油气管道的输送安全。
유우관도수송개질역연、역폭등특점，관도일단실효，발생설루，수송개질장신속확산，우도화원취회극렬연소，심지폭작，기후과시재난성적。위료방지관도의외사고적발생，채취괄당적방법대함체적형결함관도적잉여강도작출평개。기우함체적형결함관도적수력정황，응용 ABAQUS 유한원분석연건모의결함관도적역학행위，계산함체적형결함관도적실효압력，분석결함장도、결함심도이급결함관도여실효압력적관계，득출관도윤허존재적최대결함척촌。의거해척촌대함체적형결함관도작출계속사용、강압、수복、경환등방안선택，이차보증유기관도적수송안전。
Due to pipelines’medium of transportation is flammable and explosive,or its other characteristics,once the pipeline exist failure,leakage occurs,the rapid diffusion transport medium,encountered the fire will be intense burning,or even an explosion,the consequences are disastrous.In order to prevent the pipeline accidents,adopt appropriate methods to assess the residual strength of the pipe with volumetric type flaw.The force of the pipe with volumetric type flaw based on mechanical behavior,finite element analysis software ABAQUS was applied to simulate defects in pipes,calculating the failure pressure body containing product defect analysis of pipeline,defect length,defect depth and defect width and failure pressure,the maximum allowable flaw size of pipe.According to the size of the pipe with volumetric type flaw to continue to use,buck, repair,replacement scheme selection,in order to ensure the safe transportation of oil and gas pipeline.