Modeling the mechanical behavior of metal-reinforced plastic pipes under internal pressure

Ivanov SG; Strikovskii LL; Gulyaeva MA; Zuiko VY

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Modeling the mechanical behavior of metal-reinforced plastic pipes under internal pressure

机译：模拟内部压力下的金属增强塑料管的力学性能

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Numerical nonlinear models for the mechanical behavior of the metal-reinforced plastic pipes (MRP) in destructive tests are developed to analyze the stress-strain state (SSS) in such pipes during loading. The influence Of contact conditions at the polyethylene-steel boundary on the SSS of the metal-reinforced plastic pipes at normal temperatures is considered. A criterion of ultimate state of MRP is suggested to predict the load-carrying capacity of the pipes under internal pressure. The behavior of a welded butt joint of the MRP is studied, a stress redistribution phenomenon in the reinforcing skeleton is revealed, and the results obtained in destructive tests of butt joints are explained.

机译：建立了破坏性试验中金属增强塑料管（MRP）力学行为的数值非线性模型，以分析此类管在加载过程中的应力应变状态（SSS）。考虑了常温下聚乙烯-钢边界处的接触条件对金属增强塑料管的SSS的影响。建议使用MRP极限状态准则来预测管道在内部压力下的承载能力。研究了MRP焊接对接接头的行为，揭示了增强骨架中的应力重新分布现象，并解释了对接接头破坏性测试的结果。

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来源
《Mechanics of composite materials》 |2005年第1期|共10页
作者
Ivanov SG; Strikovskii LL; Gulyaeva MA; Zuiko VY;
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原文格式 PDF
正文语种 eng
中图分类数学;
关键词
metal-reinforced plastic pipe; polyethylene; steel skeleton; contact conditions; elastoplastic strains; finite-element method; destructive test; butt joint; stress redistribution;

机译：金属增强塑料管;聚乙烯;钢骨架;接触条件;弹塑性应变;有限元法;破坏性试验;对接接头;应力重分布;

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Modeling the mechanical behavior of metal-reinforced plastic pipes under internal pressure

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