1.1 结构健康监测（SHM）是一个工程领域，研究结构在运行过程中的诊断和监测。SHM的主要目标是检测、识别、评估和监控影响或可能影响结构未来安全或性能的缺陷或故障条件。SHM结合了无损检测和评估、状态/过程监控、统计模式识别和物理建模的元素。 1.2 声发射（AE）方法独特地符合SHM的概念，因为它能够在正常运行期间定期或连续检查结构并评估结构完整性。 1.3 在本指南中，阐述了将AE方法应用于SHM任务的定义和基本原则。这包括: 1.3.1 AE法SHM的术语和定义， 1.3.2 AE-SHM推荐工艺概述，以及 1.3.3 关于SHM程序开发的基本要求，包括选择适当的AE设备、数据采集和分析方法、诊断、监测和预测。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 本指南可用于开发结构健康监测的声发射应用。 5.2 通过遵循指南中描述的步骤和基本原则，可以提高AE-SHM的准确性、稳健性和效率。

1.1 Structural health monitoring (SHM) is a field of engineering that deals with diagnosis and monitoring of structures during their operation. The primary goal of SHM is detection, identification, assessment, and monitoring of flaws or fault conditions that affect or may affect the future safety or performance of structures. SHM combines elements of nondestructive testing and evaluation, condition/process monitoring, statistical pattern recognition, and physical modeling. 1.2 The acoustic emission (AE) method uniquely fits the concept of SHM due to its capabilities to periodically or continuously examine structures and assess structural integrity during their normal operation. 1.3 In this guide, the definitions and fundamental principles for applying the AE method for SHM tasks are elaborated. This includes: 1.3.1 Terminology and definitions of SHM by the AE method, 1.3.2 Outline of the recommended process of AE-SHM, and 1.3.3 Fundamental requirements regarding development of the SHM procedures, including selection of appropriate AE apparatus, data acquisition and analysis methods, diagnosis, monitoring and prediction. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This guide can be used in the development of acoustic emission applications for structural health monitoring. 5.2 Accuracy, robustness, and efficiency of AE-SHM can be enhanced by following the steps and fundamental principles described in the guide.