Experimental Verification of the Structural Damage Identification Method Developed for Beam Structures

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In this paper, an experimental verification has been conducted for a frequency response function (FRF)-based structural damage identification method (SDIM) proposed in the previous study [1]. The FRF-based SDIM requires the natural frequencies and mode shapes measured in the intact state and the FRF-data measured in the damaged state. Experiments are conducted for the cantilevered beam specimens with one and three slots. It is shown that the proposed FRF-based SDIM provides damage identification results that agree quite well with true damage state.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

1113-1116

DOI:

10.4028/www.scientific.net/KEM.326-328.1113

Citation:

D. Youn et al., "Experimental Verification of the Structural Damage Identification Method Developed for Beam Structures", Key Engineering Materials, Vols. 326-328, pp. 1113-1116, 2006

Online since:

December 2006

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Price:

$35.00

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1 4 3.

2 2 9.

5 4 2.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4 9 elements : DIE = 1. 20 ×××× 10-1 27 elements : DIE = 5. 32 ×××× 10-2 81 elements : DIE = 2. 86 ×××× 10-4 (a) Specimen A: One Damage.

1 0 0.

1 9 1.

0 3 9.

2 5 8.

4 1 9.

2 0 4.

3 4 9.

6 5 9.

2 5 2.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4 9 elements : DIE = 1. 68 ×××× 10-1 27 elements : DIE = 4. 09 ×××× 10-2 81 elements : DIE = 4. 02 ×××× 10-2 (b) Specimen B: Three Damages.

1 5 6.

2 0 9.

4 2 3.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4 9 elements : DIE = 1. 15 ×××× 10-1 27 elements : DIE = 5. 65 ×××× 10-2 81 elements : DIE = 1. 67 ×××× 10-2 (a) Specimen A: One Damage.

1 0 1.

1 7 5.

0 4 6.

1 5 0.

2 6 0.

1 2 4.

3 0 9.

4 6 7.

2 4 7.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4.

0 0 . 1 0 . 2 0 . 3 0 . 4 9 elements : DIE = 1. 70 ×××× 10-1 27 elements : DIE = 7. 51 ×××× 10-2 81 elements : DIE = 1. 96 ×××× 10-2 (b) Specimen B: Three Damages.

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