DAMAGE DIAGNOSIS FOR FRAME STRUCTURES BASED ON CHANGE RATE OF ELEMENTAL MODAL STRAIN ENERGY

Li Yongmei; Hu Kun; Yao Xuanyi; Zhao Jinxin

doi:10.13204/j.gyjz201301028

Volume 43 Issue 1

Dec. 2014

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Li Yongmei, Hu Kun, Yao Xuanyi, Zhao Jinxin. DAMAGE DIAGNOSIS FOR FRAME STRUCTURES BASED ON CHANGE RATE OF ELEMENTAL MODAL STRAIN ENERGY[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 125-130. doi: 10.13204/j.gyjz201301028

Citation:

Li Yongmei, Hu Kun, Yao Xuanyi, Zhao Jinxin. DAMAGE DIAGNOSIS FOR FRAME STRUCTURES BASED ON CHANGE RATE OF ELEMENTAL MODAL STRAIN ENERGY[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 125-130. doi: 10.13204/j.gyjz201301028

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DAMAGE DIAGNOSIS FOR FRAME STRUCTURES BASED ON CHANGE RATE OF ELEMENTAL MODAL STRAIN ENERGY

doi: 10.13204/j.gyjz201301028

1.
1. Beijing Key Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China;
2.
2. The Key Laboratory of Urban Security and Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100124,China

Received Date: 2012-01-31
Publish Date: 2013-01-20

Abstract

Abstract

Generally modal displacement indices are not very efficient to identify structural damage or diagnosis for frame structures.In order to improve efficiency and reliability for damage diagnosis,change rate of elemental modal strain energy was presented as dynamic indicator for damage locations of frame structures.The numerical simulation example of a frame structure indicated that the damage location and severity in structures,with single damage,lighter ones and multiple ones,could be detected efficiently by change rate of elemental modal strain energy with only the first order mode.The results indicated that the proposed method based on modal strain energy could accurately identify the damage location of truss structures with the noisy modal data.Furthermore,damage degree could be derived from the amplitude value of change rate of modal strain energy for the detected damage element.
- frame structure,
- damage diagnosis,
- change rate of elemental modal strain energy,
- mode

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References(8)

References

[2] Doebling S W,Hemez F M,Peterson L D,et al. ImprovedDamage Location Accuracy Using Strain Energy Based on ModeSelection Criteria[J]. AIAA Journal,1997,35(4):693-699.

Catb S F N,Aktan A E. Condition and Damage Assessment:Issues and Some Promising Indices [J]. Journal StructureEngineer,2002,128(8):1026-1036.

[3] Stubbs N,Kim J T,Farrar C R. Field Verification of aNondestructive Damage Localization and Sensitivity EstimatorAlgorithm [C]//Proceedings of the 13 th International ModalAnalysis Conference.1995:210-218.

[4] Cornwell P J,Doebling S W,Farrar C R. Application of theStrain Energy Damage Detection Method to Plate-Like Structures[J]. Journal of Sound and Vibration,2002,128(5):521-529.

[5] Shi Z Y,Law S S,Zhang L M. Structural Damage Localizationfrom Modal Strain Energy Change [J]. Journal of Sound andVibration,1998,218(5):825-844.

[6] Shi Z Y,Law S S,Zhang L M. Structural Damage Detection fromModal Strain Energy Change [J]. Journal of EngineeringMechanics,ASCE,2000,126(12):1216-1223.

[7] Shi Z Y,Law S S,Zhang L M. Improved Damage Quantificationfrom Element Modal Strain Energy Change [J]. Journal ofEngineering Mechanics,2002,128(5):825-844.

[8] Kim H M,Bartkowicz T J. Damage Detection and HealthMonitoring of Large Space Structures [J]. Journal of Sound andVibration,1993,27(6):12-7.

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