Browse > Article
http://dx.doi.org/10.11112/jksmi.2008.12.1.81

Forced-Vibration-Based Identification of Stiffness Reduction Distribution in Thin Plates with an Arbitrary Damage Shape  

Song, Yoo-Seob (한양대학교 토목공학과)
Lee, Sang-Youl (한양대학교 토목공학과)
Park, Tae-Hyo (한양대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.1, 2008 , pp. 81-90 More about this Journal
Abstract
This study deals with a method to identify structural damage using the combined finite element method (FEM) and the advanced damage search technique. The novelty of this study is the application of plates with arbitrary damage shapes and their response due to the anomalies in a structure subjected to impact loading. The technique described in this paper may allow us not only to detect the stiffness distribution of the damaged areas but also to find locations and the extent of damage. To demonstrate the feasibility of the method, the algorithm is applied to a steel thin plate structures with an arbitrary damage shape. The results demonstrate the excellencies of the method from the standpoints of computation efficiency as well as its ability to investigate the arbitrary stiffness reductions.
Keywords
Arbitrary damage shapes; Damage identification; Damage search technique; Finite element method; Forced vibration;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 이상열, "마이크로 유전알고리즘을 이용한 자유진동 박판구조물의 비파괴 손상규명", 한국강구조학회논문집, Vol. 17, 2권, 2005, pp. 173-181
2 이상열, 송유섭, 박대효, "임의의 손상형태를 갖는 박판구조물의 동적 데이터로부터 강성저하 분포 추정", 한국구조물진단학회 학술발표대회, 2006
3 Bathe.K.J, "The finite element procedures in engineering analysis}, Prentice Hall, Englewood Cliffs," NJ, 1996, pp. 768-785
4 Carroll. D.L, "Chemical laser modeling with genetic algorithms," AIAA J., 34(2), 1996, pp. 338-346   DOI
5 Friswell, M.I & Penny. J.E.T & Garvey. S.D, "A combined genetic and eigensensitivity algorithm for the location of damage in structures,"' Comput. Sturct., 69, 1998, pp. 547-556   DOI   ScienceOn
6 Krishnakumar. K, "Microgenetic algorithms for stationary and nonstationary function optimization", Proc. SPIE, 1196, pp. 289-296
7 Suh.M.W & Shim.M.B & Kim.M.Y, "Crack identification using hybrid neuro-genetic technique," J. Sound Vib., 238(4), 2000, pp. 617-635   DOI   ScienceOn
8 Lee S. Y. and Wooh S. C., "Waveform-Based Identification of Structural Damage Using the Combined Finite Element Method and Microgenetic Algorithms" J. Struct. Eng. ASCE, 31(9), 2005, pp. 1464-1472
9 Lee S. Y. and Wooh S. C., "Detection of Stiffness Reductions in Laminated Composite Plates From Their Dynamic Response Using the Microgenetic Algorithms," Comp. Mech., 36, 2005, pp. 320-330   DOI
10 Abu-Lebedh, G. & Benekothal, R. F, "Convergence variability and population sizing in micro-genetic algorithms," Comp.-Aided Civil and Infra. Eng., 14, 1999, pp. 321-334   DOI
11 Mares C. & Surace C, "An application of genetic algorithms to identify damage in elastic structures," J. Sound Vib., 195, 1996, pp. 195-215   DOI   ScienceOn
12 Doebling. S.W & Farrar. C.R & Prime.M.B, "A summary review of vibration-based damage identification methods," Shock Vib. Digest, 30, 1998, pp. 91-105   DOI
13 Yang. J.C.S & Tsai.T & Pavlin.V & Chen.J & Tsai.W.H, "Structural damage detection by the system identification technique," Shock Vib., 55, 1985, pp. 57-68
14 Gudmudson. P., "The dynamic behaviors of slender structures with cross section Cracks," J. Mech. and Phys. of Solids, 31(4), 1982, pp. 329-345
15 Lee S. Y., G. Rus and Park T., "QNDE of Thin Plate Structures Using the Complete Frequency Information from Impact Testing", J. of Structural Engineering and Mechanics, 2007, submitted
16 Goldberg.D.E, "Sizing populations for serial and parallel genetic algorithms," Proc., 3rd Conf. Genetic Algori., Fairfax, VA, 5, 1989, pp. 29-37
17 Ruotolo.R & Shifrin.E.I., "Natural frequencies of a beam with arbitrary number of cracks," J. Sound Vib., 223(3), 1999, pp. 409-423
18 Morassi. A & Rollo. M, "Identification of two cracks in a simply supported beam from minimal frequency measurements", Journal of vibration and control, 7(5), 2001, pp. 729-740   DOI