Free vibration behaviour and some mechanical properties of micro particle reinforced epoxy composites
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Meltem Ürer
Abstract
The epoxy composite specimens of certain sizes were produced by adding graphite, silicon carbide and boron carbide microparticles separately at the rates of 5, 10 and 15 wt% to the epoxy resin. Free vibrations of these composite samples were investigated experimentally in a simple supported vibration test setup. Frequency spectrums were obtained by modal analysis method in this experimental setup. The damping ratios were calculated using the half power bandwidth method. The mechanical properties of these composite specimens were also determined by applying the tensile test. By controlling the obtained vibration values theoretically, the effects of microparticle contributions to these specimens at certain rates on natural frequency and damping properties were investigated in detail. The maximum reduction in natural frequency was observed at 5 wt% of each reinforcement. Only the first natural frequency of the 15 wt% boron carbide reinforced epoxy composite was slightly increased. The damping ratio was increased at 10 wt% graphite added and 5 wt% boron carbide added epoxy composites compared to pure epoxy, but decreased in other composite specimens.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Artikel in diesem Heft
- Frontmatter
- Research Articles
- Mechanical strength enhancement of natural fibre composites via localized hybridization with stitch reinforcement
- A comparative study on the mechanical properties of African teff and snake grass fiber-reinforced hybrid composites: effect of bio castor seed shell/glass/SiC fillers
- Mechanical characterization of randomly oriented short Sansevieria Trifasciata natural fibre composites
- Mechanical and tribological properties of snake grass fibers reinforced epoxy composites: effect of Java plum seed filler weight fraction
- Chicken feather protein for the thermal stability and combustion performance of rigid polyurethane foam
- Free vibration behaviour and some mechanical properties of micro particle reinforced epoxy composites
- Polyvinylidene fluoride/maghnite nanocomposites: fabrication and study of structural, thermal and mechanical properties
