Dynamic-Mechanical Analysis of Selected Composite Materials

Abstract:

In general, composite materials are widely used in many industries. A composite material is a material composed of two or more components. Such a composite material differs in its properties from the individual components of the entire composite. This contribution is aimed at evaluating the parameters of selected composite materials - wood fiber boards, carbon prepreg boards and epoxy boards. The measured quantities that were investigated on the given materials were the modulus of elasticity, the loss modulus and the tan delta angle. To evaluate the properties of the given composite materials, a dynamic-mechanical analysis using the DMA Q800 device from TA Instruments was used. Three samples were measured from each material. From the measured values, it is demonstrable for the modulus of elasticity that the greatest mechanical disturbance began to occur gradually due to the influence of temperature and frequency with three materials in this order: fiber board - carbon prepreg board - epoxy board. From the obtained values ​​of the loss modulus, it was proven that the sample - wood fiber board - had the lowest glass transition temperature. Finally, regarding the measured values ​​of the glass transition temperature for the loss angle (tan delta), it can be said that the wood fiber board also has the lowest damping ability.

• Periodical: Solid State Phenomena (Volume 372)
• Pages: 21-31
• DOI: https://doi.org/10.4028/p-6Mpi7N
• Online since: July 2025
• Authors: Lenka Bartošová*, Marcel Kohutiar, Milan Jus
• Keywords: Composite Materials, Dynamic Mechanical Analysis, Elastic Modulus, Loss Modulus

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