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含缺陷套管强度分析

ZHANG Dan, JI Ya-feng

Pipeline Technology and Equipment（2013）

Cited 0|Views12
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Abstract
利用ANSYS有限元软件建立套管-水泥环-围岩的三维模型,对含体积型缺陷套管在均匀地应力下的受力情况进行分析.文中分析了缺陷半径和缺陷深度对套管的影响.分析可知套管最大Mises应力随缺陷深度加大而增大,随着缺陷半径的增大而减小,且当半径增大到某特定值时套管应力值基本不变；套管缺陷对储气库注气工况下套管柱强度影响较大.
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