POD GENERATOR,Development of Numerical Modeling Tools for Quantitative Assessment of the Performance of Non-destructive Inspection Techniques
作者单位：TNO Science and Industry Stieitjesweg 12628 CK DelftThe Netherlands
会议名称：《17th World Conference on Non-Destructive Testing》
会议日期：2008年
学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程]
关 键 词：Nondestructive inspection Probability of detection POD Time-of flight-diffraction TOFD Pulse-echo PE Guided waves GW Magnetic flux leakage MFL Human factor
摘 要：Risk based inspection strategies rely on detailed knowledge of the performance of inspection *** is well known that every inspection technique has limitations in terms of reliability and ***, these are influenced by many factors,e.g.,it depends on operator skills, inspection procedure,defect and object geometry,inspection *** objective of thePOD generatorproject is to develop a numerical modeling approach to assess inspection effectiveness for a specific technique and situation. This approach enables a flexible and reliable quantitative assessment at acceptable costs. Besides the models to simulate various degradation mechanisms,numerical models have been developed and validated for accurately simulating the physics of inspection *** the human factor is taken into *** numerical models are then used to generate probability of detection (POD) *** this paper this approach will be illustrated for ultrasonic TOFD inspection. The POD generator will help asset owners to rationalize their inspection and maintenance strategy,*** inspection and maintenance costs whilst preserving safety and reliability of operation at the desired levels.