{"title":"Excitation method of guided wave modes in turnout rails with variable cross-section by applied surface tractions","authors":"Zhongyi Zhang , Fengzhuang Tong , Haoxiang Gao , Shuaijie Miao , Chengyang Hu","doi":"10.1016/j.mechrescom.2025.104385","DOIUrl":null,"url":null,"abstract":"<div><div>Ultrasonic-guided waves have become a widely used technique for rapid and long-distance detection of rails due to their long propagation length and wide detection range. The single-guided wave mode shows remarkable signal processing and damage identification prospects. This study proposes a novel excitation method for a unitary guided wave mode in rails with a variable cross-section using semi-analytical finite element and normal mode expansion. This method proposes the optimum location for exciting guided wave mode. Furthermore, the excitation method is verified using finite element simulation, demonstrating its capability to excite a unitary guided wave mode. In summary, the proposed method guides the excitation strategy of a unitary guided wave mode during damage detection and holds the potential for non-destructive testing and structural health monitoring.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"144 ","pages":"Article 104385"},"PeriodicalIF":1.9000,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanics Research Communications","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0093641325000187","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
Ultrasonic-guided waves have become a widely used technique for rapid and long-distance detection of rails due to their long propagation length and wide detection range. The single-guided wave mode shows remarkable signal processing and damage identification prospects. This study proposes a novel excitation method for a unitary guided wave mode in rails with a variable cross-section using semi-analytical finite element and normal mode expansion. This method proposes the optimum location for exciting guided wave mode. Furthermore, the excitation method is verified using finite element simulation, demonstrating its capability to excite a unitary guided wave mode. In summary, the proposed method guides the excitation strategy of a unitary guided wave mode during damage detection and holds the potential for non-destructive testing and structural health monitoring.
期刊介绍：
Mechanics Research Communications publishes, as rapidly as possible, peer-reviewed manuscripts of high standards but restricted length. It aims to provide:
• a fast means of communication
• an exchange of ideas among workers in mechanics
• an effective method of bringing new results quickly to the public
• an informal vehicle for the discussion
• of ideas that may still be in the formative stages
The field of Mechanics will be understood to encompass the behavior of continua, fluids, solids, particles and their mixtures. Submissions must contain a strong, novel contribution to the field of mechanics, and ideally should be focused on current issues in the field involving theoretical, experimental and/or applied research, preferably within the broad expertise encompassed by the Board of Associate Editors. Deviations from these areas should be discussed in advance with the Editor-in-Chief.
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