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首页> 外文期刊>Journal of intelligent material systems and structures >Analytical and experimental study of shape memory alloy reinforcement on the performance of butt-fusion welded joints in high-density polyethylene pipe
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Analytical and experimental study of shape memory alloy reinforcement on the performance of butt-fusion welded joints in high-density polyethylene pipe

机译：形状记忆合金加固对高密度聚乙烯管的对接焊接接头性能的分析与实验研究

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摘要

In this article, a shape memory alloy wire is employed as confinement to enhance the flexural rigidity of the butt-fusion welded joints in the high-density polyethylene pipes. To this end, analytical and experimental studies are considered, when the shape memory alloy wire is wrapped around a butt-fusion joint and an internal pressure is applied to the high-density polyethylene pipe. To investigate the efficiency of shape memory alloy wire jacket on the performance of butt-fusion welded joint in high-density polyethylene pipe, two cases of perfect butt-fusion joint and imperfect butt-fusion joint are tested. The influence of the number of shape memory alloy wire jacket on the high-density polyethylene pipe joints as well as the effect of different flexural rigidities of the wire and high-density polyethylene pipe, and different diameters are evaluated. The deformation is measured using linear voltage displacement transducer and digital image correlation analysis at different location of the pipe length. In addition, radial strain of the pipes due to bulging is measured by electronic resistance strain gauges. Results show that the shape memory alloy wire jacket has a significant effect (33%) on enhancing imperfect butt-fusion welded joint of high-density polyethylene pipes.
机译：在本文中，采用形状记忆合金线作为限制，以提高高密度聚乙烯管中的对接焊接接头的弯曲刚度。为此，考虑分析和实验研究，当形状记忆合金线缠绕在对接接头周围并且内部压力施加到高密度聚乙烯管。为了研究形状记忆合金丝夹克对高密度聚乙烯管中的对接焊接接头性能的效率，测试了两种完美的对接接头和渗透熔接接头。评价形状记忆合金丝网夹克数量的影响以及电线和高密度聚乙烯管的不同弯曲刚性的影响，以及不同的直径。使用线性电压位移换能器和管道长度的不同位置处的数字图像相关分析测量变形。此外，通过电子电阻应变仪测量引起的管道的径向菌株。结果表明，塑造记忆合金丝夹克在增强高密度聚乙烯管的缺乏普通对接焊接接头上具有显着效果（33％）。

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