Comparison of Young’s Moduli of Engineered Stones Using Different Test Methods

Abstract:

This work reports the results of Young’s modulus of elasticity obtained for 3 types of engineered stones. Using parallelepiped specimens with dimensions 150  30  20 mm3, Young’s modulus is determined by different methods: static and dynamic. Via quasi-static deformation tests: - uniaxial tension, - uniaxial compression, and, - pure bending (i.e. symmetrical four-point bending), determination of Young’s modulus was carried out by means of the conventional electric-resistance extensometry with strain-gauge strips glued to the specimens. The results obtained from these quasi-static deformation tests are compared with the results of dynamic Young’s modulus obtained with RFDA equipment (Resonant Frequency & Damping Analyser) using the parallelepiped specimens in a flexural vibration mode. Dynamic Young’s modulus was also evaluated through measurements of ultrasonic pulses velocity. Composition and microstructures of the materials under investigation are also presented and discussed.

• Periodical: Key Engineering Materials (Volume 548)
• Pages: 220-230
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.548.220
• Online since: April 2013
• Authors: João P. Lam dos Santos, Pedro M. Amaral, António Correia Diogo, Luis Guerra Rosa
• Keywords: Compressive Strength, Engineered Stones, Flexural Strength, Mechanical Property, Tensile Strength, Young's Modulus

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