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Parameters Influence on the Dynamic Properties of Polymer-Matrix Composites Reinforced by Fibres, Particles, and
Zuzana Murčinková1, Przemysław Postawa2, Jerzy Winczek2
1Department of Design and Monitoring of Technical Systems, Faculty of Manufacturing Technologies with Seat in Prešov, Technical University of Košice, Bayerova 1, 080 01 Prešov, Slovakia.
Polymers
|August 12, 2022
Summary
This study analyzes dynamic mechanical properties of polymer composites, finding aramid fibers offer superior damping and stiffness. Fine particle sizes also enhance composite performance, crucial for material selection in engineering applications.
Area of Science:
- Materials Science
- Polymer Science
- Mechanical Engineering
Background:
- Polymer-composite matrices allow versatile reinforcement arrangements (fibers, particles, layers) for tailored mechanical properties.
- Understanding dynamic mechanical properties is crucial for predicting composite behavior under varying conditions.
- Existing research often focuses on limited composite types and parameters, necessitating a broader analysis.
Purpose of the Study:
- To conduct an extensive experimental study on the dynamic mechanical properties of polymer-matrix composites.
- To quantify the influence of eight key parameters on these properties, including fiber material, weave, orientation, temperature, frequency, particle size, fiber volume, and resin type.
- To rank the identified parameters based on their impact on dynamic vibration characteristics.
Main Methods:
- Experimental analysis of 27 different polymer-matrix composite types.
- Utilized the free-damped-vibration method with dynamic signal analysis.
- Employed forced-damped vibration via dynamic mechanical thermal analysis (DMTA).
Main Results:
- Aramid-fiber-reinforced polymers exhibited the best performance in terms of storage modulus, loss modulus, and loss factor, particularly with unidirectional fabric.
- Fine filler particle sizes in particle composites, when incorporating short fibers, yielded optimal results.
- Parameter influence on dynamic vibration properties was ranked, providing insights into material design.
Conclusions:
- Aramid fiber composites, especially unidirectional ones, are superior for dynamic mechanical applications requiring high damping and stiffness.
- Optimizing particle size and incorporating short fibers significantly improves the dynamic performance of particle-filled composites.
- This comprehensive study provides valuable data for selecting and designing polymer composites with specific dynamic mechanical properties.
Keywords:
fabric weavingfibre materialfibre orientationfrequencylogarithmic decrementloss factormodulusparticle sizepolymer matrixtemperatureMore Related Videos
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