Comparative testing of radiographic testing, ultrasonic testing and phased array advanced ultrasonic testing non destructive testing techniques in accordance with the AWS D1.5 bridge welding code.
Comparative testing of radiographic testing, ultrasonic testing and phased array advanced ultrasonic testing non destructive testing techniques in accordance with the AWS D1.5 bridge welding code.
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根据AWS D1.5桥梁焊接规范对射线检测、超声波检测和相控阵先进超声波检测无损检测技术进行对比测试。
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
S. Duke
中科院分区：
文献类型：
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作者：
S. Wilkinson;S. Duke
从制造商车间的真实条件下的钢桥焊缝中收集了全面的无损检测数据。三种不同的无损检测（NDT）技术用于每个焊缝检查，这些是射线检测（RT），传统的超声波检测（UT），和相控阵超声波检测（PAUT）。这些数据进行了比较，以确定是否PAUT可能在未来被采纳根据美国焊接学会（AWS）D1.5代码作为一个合适的替代品，目前所需的RT。拒绝率使用PAUT是类似的RT和UT，从而减轻关注，潜在的更敏感的PAUT可能会导致不必要的拒绝。虽然这三种无损检测技术基本一致，但也有一些罕见的例外。当存在边缘缺陷时，会发生这些情况，导致尽管RT拒收，但PAUT仍被接受。对三个定制设计的具有内置边缘缺陷的测试板进行了额外的测试。使用还包括补充手动和光栅扫描的程序检查这些板。使用该测试程序，PAUT与RT和UT在所有接骨板缺陷方面完全一致。得出的结论是，PAUT将使RT（和UT）在桥梁焊缝检测的合适的替代品，提供了一个适当的程序。作出这种改变可以节省大量费用。
A comprehensive body of non-destructive testing data was collected from steel bridge welds under real-world conditions in a fabricator’s shop. Three different non-destructive testing (NDT) techniques were used on each weld inspection, these being Radiographic Testing (RT), conventional Ultrasonic Testing (UT), and Phased Array Ultrasonic Testing (PAUT). These data were then compared to determine whether PAUT might in future be adopted under the American Welding Society (AWS) D1.5 code as a suitable substitute for the currently required RT. Rejection rates using PAUT were similar to those of RT and UT, thereby allaying concerns that the potentially more sensitive PAUT might result in unnecessary rejections. Although all three NDT techniques generally agreed, there were some rare exceptions. These occurred when edge flaws were present, resulting in a PAUT acceptance despite a RT rejection. Additional testing was performed on three custom-designed test plates with built-in edge flaws. These plates were inspected using a procedure that also included supplemental manual and raster scanning. Using this testing procedure the PAUT came into total agreement with RT and UT regarding all plate defects. It was concluded that PAUT would make a suitable substitute for RT (and UT) in bridge weld inspection, provided an appropriate procedure is followed. Considerable cost savings could be realized by making such a change.