声发射技术用于监测焊接梁疲劳过程的试验研究＊刘学文袁祖贻缪龙秀刘志明王沁霞（北方交通大学北京）损伤及破坏特性的实时监测对材料性能的研究、结构的设计和构件质量评价有着重要意义。声发射（ＡＥ）作为一种动态无损检测技术具有连续、整体监测等特点，已成为评价结... Experimental Study on Acoustic Emission Technology Used to Monitor Fatigue Behavior of Welded Beam LIU Xue-wen, YUAN Zu-yi, MIAO Long-xiu, LIU Zhi-ming, WANG Qin-xia (North Jiaotong University, Beijing) Real-time monitoring of damage and failure properties is of great importance to material properties, structural design and component quality evaluation . Acoustic emission (AE) as a dynamic nondestructive testing technology with continuous, overall monitoring and other characteristics, has become the evaluation of knot ...