Characterization of Welded Components Flaws Using an Ultrasonic Expert System Based on Static Patterns
Ultrasonic testing of welds is a nondestructive evaluation method in which highfrequency sound waves are introduced into materials for the detection of imperfections or flaws in the material.These sound waves travel through the material and are reflected at interfaces such as surface boundaries,grain boundaries,cracks,and pores.The reflected acoustic energy is converted to electrical signals that are recorded and analyzed to determine the presence and location of flaws or discontinuities.The objective of this study is to present an expert system according to static patterns in pulse-echo inspection.It determines numbers,locations and types of weld defects based on DIN EN 1713.This paper gives a brief outline of how the expert system algorithm operates to identify a number of defect scenarios.Since the proposed algorithm is verified by experiments,it allows the user to automatically address and interpret any defects.
NDT Defect Welding Ultrasonic Pulse Echo Technique
A.Zolfaghari D.Shahriari F.Masoumi
Mechanical Engineering Department, Manufacturing Group, Arak University of Technology, Arak, Iran Mechanical Engineering Department, Manufacturing Group, Arak University of Technology, Arak, Iran; M Materials Science and Engineering Department, Pohang University of Science and Technology, San 31 Hy
国际会议
广州
英文
141-144
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）