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Strain Capacity Of High-strength Line Pipes

机译：高强度管线管的应变能力

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摘要

Two compression and two bending tests using X80 high-strain line pipes with 30 inches (762 mm) in outside diameter were conducted to investigate its compression capacity and bending capacity. The compression test revealed that the pipes had the critical compressive strain of 0.90 and 0.78% and the bending test clarified that the 2OD (two times outside diameter) average critical compressive strains were 2.40 and 2.15% and the 1OD average were 2.67 and 2.28%, respectively. The test results proved that X80 high-strain linepipes satisfy requirements from pipeline projects and ensure pipeline integrity in seismic and permafrost areas.
机译：使用外径为30英寸（762毫米）的X80高应变管线进行两次压缩和两次弯曲试验，以研究其压缩能力和弯曲能力。压缩试验表明，管道的临界压缩应变分别为0.90和0.78％，弯曲试验表明，管道的2OD（外径的两倍）平均临界压缩应变为2.40和2.15％，而1OD的平均值为2.67和2.28％，分别。测试结果证明，X80高应变管线管满足管线项目的要求，并确保地震和多年冻土地区的管线完整性。

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