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International Journal of Engineering، جلد ۲۷، شماره ۳، صفحات ۳۶۷-۳۷۴
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Crack Detection In Functionally Graded Beams Using Conjugate Gradient Method |
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| چکیده انگلیسی مقاله |
In this paper the conjugate gradient (CG) method is employed for identifying the parameters of crack in a functionally graded beam from natural frequency measurement. The crack is modeled as a massless rotational spring with sectional flexibility. By using the Euler-Bernoulli beam theory on two separate beams respectively and applying the compatibility requirements of the crack, the characteristic equation can be obtained as a function of natural frequency and location and depth of crack. In direct problem, the natural frequency is computed using analytical analysis. Moreover, the location and depth of crack are determined by measuring the three natural frequencies of beam in inverse problem. In this study, the CG method is utilized in inverse problem to determine the location and depth of crack. The obtained results show the efficiency of CG algorithm in terms of accuracy and the convergence speed. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
Malihe Eftekhari |
, Islamic Azad University, Science & Research Branch
Mojtaba Eftekhari |
, Shahid Bahonar University of Kerman
Mohammad Hosseini |
, sirjan university of technology
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| نشانی اینترنتی |
http://www.ije.ir/article_72263_a0ac2c13fdbf5354004d342bd32ac8e6.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2062758.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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