Using ring stiffness to calculate the elastic modulus of steel-plastic composite pre-insulated pipe

机译：用环刚度计算钢塑复合预绝缘管的弹性模量

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Elastic modulus of the pipe mill is one of the most important figures,which decides the character of the mechanics of materials.It is usually gained by experiments or finite element analysis.Combining computing formula of ring stiffness of buried pipeline and test results of ring stiffness of new straight buried thermal pipe (steel-plastic composite pre-insulated pipe),this article uses moment of inertia and equivalent section method to calculate elastic modulus of this pipe catalogue.By comparing with practical test results,the article testifies that this method could be probably used in directly buried installation.

机译：钢管磨机的弹性模量是决定材料力学特性的最重要的指标之一，通常是通过实验或有限元分析得到的。将埋地管道的环刚度的计算公式与环刚度的测试结果相结合新型直埋热力管（钢塑复合预保温管），本文采用惯性矩和当量截面法计算了该管道目录的弹性模量。通过与实际测试结果进行比较，证明该方法能够有效地解决这一问题。可能用于直接掩埋的安装中。

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《International conference on chemical engineering, metallurgical engineering and metallic materials》|2012年|602-605|共4页
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Cheng Yang; Fei Wang; Guowei Wang;
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中图分类工程材料学;
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ring stiffness; steel-plastic composite pre-insulated pipe; elastic modulus; directly buried installation;

机译：环刚度钢塑复合预绝缘管;弹性模量直接埋入安装;

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Using ring stiffness to calculate the elastic modulus of steel-plastic composite pre-insulated pipe

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