APPLICATION OF THE FREQUENCY INSPECTION METHOD TO LIGHTWEIGHT CONCRETE SPECIMEN TESTING

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F09%3APU83327" target="_blank" >RIV/00216305:26110/09:PU83327 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
APPLICATION OF THE FREQUENCY INSPECTION METHOD TO LIGHTWEIGHT CONCRETE SPECIMEN TESTING
Original language description
Current research and development of non-destructive frequency-inspection method show these methods to be very promising for material testing and defectoscopy in the near future. This method is based on the physics of elastic stress wave propagation in bodies. An exciting impulse, being realized, for example, by a mechanical impact on the specimen surface, gives rise to low-frequency stress waves to propagate within the structure and reflect on cracks and the specimen surface. The specimen response to the exciting impulse is picked up on the surface by means of a sensor and transmitted to a computer for frequency analysis. The predominant frequencies may be associated with multiple reflections within the structure, carrying information on the structureintegrity and defect localization. The paper presents some results of our experimental study of the application potential of the frequency-inspection method. Our experiments focused on the testing of lightweight concrete specimen.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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