Comparison of Dynamic Young's Modulus of Elasticity Values Measured by Ultrasonic Pulse and Resonance Methods

Jiří Brožovský; Ámos Dufka

doi:10.4028/www.scientific.net/AMR.1100.193

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1100Comparison of Dynamic Young's Modulus of...

Comparison of Dynamic Young's Modulus of Elasticity Values Measured by Ultrasonic Pulse and Resonance Methods

Abstract:

Dynamic Young ́s modulus of elasticity can be determined by ultrasonic pulse method and resonance method. Because of the difference in the way of introducing tension into a test specimen, the values of modulus of elasticity differ. Dynamic Young ́s modulus of elasticity measured by ultrasonic pulse method is higher; the difference stated for concrete is 5 to 20%. It was found that the dynamic Young's modulus of elasticity of calcium silicate bricks and prisms measured by ultrasonic pulse method is on average higher by 9.5% than dynamic Young's modulus of elasticity measured by resonance method. If dynamic Young's modulus of elasticity is converted to static modulus of elasticity, this difference has to be taken into account by means of appropriate coefficient.

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Periodical:

Advanced Materials Research (Volume 1100)

Pages:

193-196

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1100.193

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Online since:

April 2015

Authors:

Jiří Brožovský*, Ámos Dufka

Keywords:

Calcium Silicate Brick, Dynamic Modulus of Elasticity, Resonance Method, Ultrasonic Pulse Method

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