{"title":"钢桥基本金属的声学特性","authors":"C. J. Schroeder, R. Connor, B. Crowley, G. Washer","doi":"10.1080/09349847.2021.1999544","DOIUrl":null,"url":null,"abstract":"ABSTRACT Ultrasonic testing (UT) is typically conducted to locate and classify (or rate) defects in welds during bridge fabrication. Variations in acoustic properties such as attenuation and velocity can have an impact on the UT results. Defects in welds may be missed, incorrectly rated, or incorrectly located, and false calls may occur that require unnecessary repairs. The objective of the research was to assess the impact of variations in acoustic properties on the ultrasonic testing of bridge steel. This paper describes the results of acoustic property measurements of 14 different material heats representing various grades of steel plate used in bridges. The attenuation of various bridge base materials was evaluated using 2.25 MHz and 5 MHz transducers. Shear wave velocities and acoustic anisotropy ratios were also determined for some of these steels using normal incidence shear wave and electromagnetic acoustic (EMAT) transducers. The experimental results as well as CIVA-UT simulation software were used to develop recommended changes to the AWS D1.5 Bridge Welding Code in order to limit the amplitude and location measurement errors for weld flaws.","PeriodicalId":54493,"journal":{"name":"Research in Nondestructive Evaluation","volume":"85 1","pages":"238 - 262"},"PeriodicalIF":1.0000,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Acoustic Properties of Steel Bridge Base Metals\",\"authors\":\"C. J. Schroeder, R. Connor, B. Crowley, G. Washer\",\"doi\":\"10.1080/09349847.2021.1999544\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT Ultrasonic testing (UT) is typically conducted to locate and classify (or rate) defects in welds during bridge fabrication. Variations in acoustic properties such as attenuation and velocity can have an impact on the UT results. Defects in welds may be missed, incorrectly rated, or incorrectly located, and false calls may occur that require unnecessary repairs. The objective of the research was to assess the impact of variations in acoustic properties on the ultrasonic testing of bridge steel. This paper describes the results of acoustic property measurements of 14 different material heats representing various grades of steel plate used in bridges. The attenuation of various bridge base materials was evaluated using 2.25 MHz and 5 MHz transducers. Shear wave velocities and acoustic anisotropy ratios were also determined for some of these steels using normal incidence shear wave and electromagnetic acoustic (EMAT) transducers. The experimental results as well as CIVA-UT simulation software were used to develop recommended changes to the AWS D1.5 Bridge Welding Code in order to limit the amplitude and location measurement errors for weld flaws.\",\"PeriodicalId\":54493,\"journal\":{\"name\":\"Research in Nondestructive Evaluation\",\"volume\":\"85 1\",\"pages\":\"238 - 262\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2021-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research in Nondestructive Evaluation\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1080/09349847.2021.1999544\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research in Nondestructive Evaluation","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/09349847.2021.1999544","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
ABSTRACT Ultrasonic testing (UT) is typically conducted to locate and classify (or rate) defects in welds during bridge fabrication. Variations in acoustic properties such as attenuation and velocity can have an impact on the UT results. Defects in welds may be missed, incorrectly rated, or incorrectly located, and false calls may occur that require unnecessary repairs. The objective of the research was to assess the impact of variations in acoustic properties on the ultrasonic testing of bridge steel. This paper describes the results of acoustic property measurements of 14 different material heats representing various grades of steel plate used in bridges. The attenuation of various bridge base materials was evaluated using 2.25 MHz and 5 MHz transducers. Shear wave velocities and acoustic anisotropy ratios were also determined for some of these steels using normal incidence shear wave and electromagnetic acoustic (EMAT) transducers. The experimental results as well as CIVA-UT simulation software were used to develop recommended changes to the AWS D1.5 Bridge Welding Code in order to limit the amplitude and location measurement errors for weld flaws.
期刊介绍：
Research in Nondestructive Evaluation® is the archival research journal of the American Society for Nondestructive Testing, Inc. RNDE® contains the results of original research in all areas of nondestructive evaluation (NDE). The journal covers experimental and theoretical investigations dealing with the scientific and engineering bases of NDE, its measurement and methodology, and a wide range of applications to materials and structures that relate to the entire life cycle, from manufacture to use and retirement.
Illustrative topics include advances in the underlying science of acoustic, thermal, electrical, magnetic, optical and ionizing radiation techniques and their applications to NDE problems. These problems include the nondestructive characterization of a wide variety of material properties and their degradation in service, nonintrusive sensors for monitoring manufacturing and materials processes, new techniques and combinations of techniques for detecting and characterizing hidden discontinuities and distributed damage in materials, standardization concepts and quantitative approaches for advanced NDE techniques, and long-term continuous monitoring of structures and assemblies. Of particular interest is research which elucidates how to evaluate the effects of imperfect material condition, as quantified by nondestructive measurement, on the functional performance.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
