Magnetic Testing of a Safety State for a Defect Sensitive Structure
摘 要
针对大跨度钢结构等缺陷敏感结构的主要受力和变形特点,利用磁化的应力敏感性,提出了铁磁构件在简单应力状态下的磁导率与其应力间关系的数学物理模型,得出了构件应力与其磁导率间的线性相关关系,并建立了大跨度钢结构等缺陷敏感结构安全状况磁性无损检测的基本理论和工程应用方法。验证了该理论的正确性,且所提出的工程应用方法是行之有效的,其具有一定的工程应用前景。
Abstract
In the light of the main stressed characteristics for a long-span steel structure, according to the stress dependent magnetization, a mathematical physical model involving the change in the magnetic permeability and stress was put forward when the ferromagnetic components under the action of the simple stresses, and the linear dependency relation was obtained, then the basic theory and application method of the magnetic NDT testing of a safety state for a long-span defect sensitive seracture was proposed. Through the related tests, it proved validity of the theory, and the method was effective and feasible.
中图分类号 TG115.28
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50278077);高等学校博士学科点专项科研基金资助项目(20050703004);陕西省自然科学基金资助项目(2004E230);陕西省教育厅专项科研基金资助项目(05JK244)。
收稿日期 2007/12/31
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备注熊二刚(1980-),男,博士,主要从事工程结构健康检测及无损检测方面的研究。
引用该论文: XIONG Er-Gang,WANG She-Liang,ZHANG Yu. Magnetic Testing of a Safety State for a Defect Sensitive Structure[J]. Nondestructive Testing, 2008, 30(12): 911~913
熊二刚,王社良,张 羽. 缺陷敏感结构安全状况的磁性检测[J]. 无损检测, 2008, 30(12): 911~913
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参考文献
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【3】Bozorth R. Ferromagnetism[M]. Toronto: D. Van Nostrand,1959.
【4】Tikazumi S. Physics of Ferromagnetism. Magnetic Characteristics and Practical Applications[M]. Fizika ferromagnetizma, Moscow: Mir,1987.
【5】Rosaliec, Chan A, Chiu W K, et al. Structural health monitoring of composite sturctures using stress wave methods[J]. Composice Sturctures,2005,67(2):157.
【6】Gros L, Reyne G, Body C, et al. Strong coupling magneto mechanical methods applied to model heavy magnetostrictive actuators[J]. Transactions on Magnetics,1998,34(5):3150-3153.
【7】Reyne G, Sabonnadiere J C, Coulomb J L. A survey of the main aspects of magnetic forces and mechanical behavior of ferromagnetic materials under magnetization[J]. IEEE Transactions on Magnetics,1987,23(5):3765-3767.
【8】Liorzou F, Atherton D L. Effects of compressive stress on a steel cube using tensor magnetization and magnetostriction analysis[J]. Journal of Magnetism and Magnetic Matrials,1999,195(1):174-181.
【9】Besbes M, Ren Z, Razek A. Finite element analysis of magneto-mechanical coupled phenomena in magnetostrictive materials[J]. IEEE Transactions on Magnetics,1996,32(3):1058-1061
【10】Kaleta J, Tumanski S, Zebracke J. Magnetoresistors as a tool for investigating the mechanical properties of ferromagnetic materials[J]. Journal of Magnetism and Magnetic Materials,1996,160(1):199-200.
【11】Wang Sheliang, Wang Wei, Huang Xiangyun, et al. The research on the initial permeability and stress of ferromagnetic materials[C]. Proc. of ISSEYE-8. Dalian:2004:463-468.
【12】Wang Sheliang, Xi Kuantang, Zhao Xindong, et al. The research on the stress-sensing mechanism of magnetostrictive materials[C]. Proc of Third China-Japan-US Symposium. Xian:2004:159-162.
【13】王绍林.利用铁磁材料逆磁致伸缩效应进行应力在线检测方法研究[D].北京:中国矿业大学,1998.
【14】王 威,王社良,苏三庆,等.应力对Q235钢磁滞回线影响的实验研究[J].工业建筑,2005,35(6): 314.
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