A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN

Liu Mi; Xu Zhaodong

doi:10.13204/j.gyjz201003013

Volume 40 Issue 3

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Liu Mi, Xu Zhaodong. A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 47-51. doi: 10.13204/j.gyjz201003013

Citation:

Liu Mi, Xu Zhaodong. A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 47-51. doi: 10.13204/j.gyjz201003013

Liu Mi, Xu Zhaodong. A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 47-51. doi: 10.13204/j.gyjz201003013

Citation:

Liu Mi, Xu Zhaodong. A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 47-51. doi: 10.13204/j.gyjz201003013

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A DAMAGE IDENTIFICATION METHOD BASED ON THE TIME-HISTORY DATA OF STRAIN

doi: 10.13204/j.gyjz201003013

Liu Mi,
Xu Zhaodong

1.
RC&PC Key Laboratory of Education Ministry,Southeast University,Nanjing 210096,China

Received Date: 2009-06-23
Publish Date: 2010-03-20

Abstract

Abstract

Based on the method of the time-history data of strain,the damage identification of a cantilever beam is studied in this paper. By using the method of strain mode curvature difference,this index is affected by vibration mode and exciting force and cant satisfy the request of damage identification. By using the energy method based on strain which is identified to avoid the effect of vibration mode and exciting force,the effect of the damage identification has been greatly improved,especially after amplifying processing with a magnification factors k which is proposed in this paper.
- damage identification,
- strain mode curvature difference,
- strain energy difference,
- strain energy-curvature difference

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References(7)

References

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