标准摘要
[中文适用范围]： 本文件描述了使用阵列探头结合合成聚焦信号处理算法的FRP复合材料机械化超声检测程序，以及使用空气耦合超声探头进行测试和评估测试结果。本文件适用于阵列超声检测（A-UT）和空气耦合超声检测（ACUT）技术，应用于碳纤维增强塑料（CFRP）和玻璃纤维增强塑料（GFRP）复合材料的无损检测，这些材料具有热固性或热塑性基体。程序主要用于检测连续单向或多向复合材料；但这并不排除它们在其他形式的结构复合材料上的使用，包括编织和缝合织物以及拉挤制品。本文件中的技术旨在用于平坦的测试对象，其中材料厚度差异小于20%。本文件涉及通过接触或浸没技术使用超声阵列探头进行超声检测，以及使用单元素空气耦合超声探头进行斜射或透射技术检测。 [外文原描述]： This document describes procedures for mechanized ultrasonic testing of FRP composite materials using array probes in conjunction with the application of synthetic focusing signal processing algorithms, as well as testing using air-coupled ultrasonic probes and the evaluation of the test result. This document is intended for array ultrasonic testing (A-UT) and for air-coupled ultrasonic testing (AC-UT) techniques applied to non-destructive testing of carbon fibre-reinforced plastic (CFRP) and glass fibre-reinforced plastic (GFRP) composites with thermoset or thermoplastic matrices. The procedures are primarily intended for inspection of continuous unidirectional or multidirectional composites; however, this does not exclude their use on other formats of structural composites including woven and stitched fabrics and pultrusions. The techniques contained within this document are intended to be used on flat, plane test objects where the material thickness differs by less than 20 %. This document addresses ultrasonic testing via contact or immersion techniques using ultrasonic array probes as well as testing in pitch-catch or through-transmission technique using single element air-coupled ultrasonic probes.
英文名称Fibre-reinforced plastic composites — Non-destructive testing — Part 2: Array and air-coupled ultrasonics