Detection of Cracks on Small Specimens Based on Modal Analysis

Tomáš Plachy; Tomáš Svoboda; Pavel Tesárek; Michal Polak

doi:10.4028/www.scientific.net/AMM.827.304

Paper Titles

Components of Fracture Response of Steel Fibre Reinforced Concrete Specimens
p.287

Compressive Strength of Lime-Based Mortars Reinforced by Micro Glass Fibers
p.292

Destructive and Nondestructive Evaluation of Frost Resistance of Cement Pastes with Fly Ash
p.296

Evaluation of the Railway Substructure in the Turnout with the Movable Frog by Help of Decomposition
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Detection of Cracks on Small Specimens Based on Modal Analysis
p.304

An Experimental Analysis of the Real Dynamic Behavior and the Reliability Verification of an Existing Footbridge
p.308

An Experimental Analysis of Grandstand Vibrations Caused by Crowd of Spectators during Two Football Matches
p.312

Use of Materials with Pozzolanic Properties as Partial Cement Replacement in Development of Heat Resistant Composite
p.316

Composite Middle Lamella Hardness and Young’s Modulus of Artificial Dried Spruce Wood by Nanoindentation
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 827Detection of Cracks on Small Specimens Based on...

Detection of Cracks on Small Specimens Based on Modal Analysis

Abstract:

The paper presents the detection and localization of the induced cracks on small specimens based on a modal analysis. The cracks were induced to cement specimens of dimensions 40 × 40 × 160 mm in three different positions. Their position was detected using different techniques based on natural mode shape changes between virgin and damage states of the specimen. The sensitivity of these techniques to the damage level and position was investigated, compared and then discussed in the conclusion.

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Periodical:

Applied Mechanics and Materials (Volume 827)

Pages:

304-307

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.827.304

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Online since:

February 2016

Authors:

Tomáš Plachy, Tomáš Svoboda, Pavel Tesárek, Michal Polak

Keywords:

Cement Specimen, Damage Detection, Health Monitoring, Modal Analysis, Natural Frequency, Natural Mode

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References

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