A Test Concept for Lifetime Prediction of Polyethylene Pressure Pipes
A Test Concept for Lifetime Prediction of Polyethylene Pressure Pipes
复制标题
聚乙烯压力管道寿命预测的测试概念
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
M. Haager
中科院分区：
文献类型：
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作者：
G. Pinter;R. Lang;M. Haager
总结。本论文描述了基于现代断裂力学方法的任意安装条件下聚乙烯压力管道寿命和安全评估新概念的主要要素。所提出的概念的核心是加速生成所谓的合成裂纹扩展曲线和相应的材料定律，用于裂纹扩展起始和在不使用应力开裂液体的情况下用于接近使用温度条件的缓慢裂纹扩展。
Summary.The present paper describes the main elements of a novel concept for lifetime and safety assessment of polyethylene pressure pipes for arbitrary installation conditions based on modern methods of fracture mechanics. At the core of the proposed concept is the accelerated generation of so-called synthetic crack growth curves and corresponding material laws for crack growth initiation and slow crack growth for service-near temperature conditions without the use of stress cracking liquids.