Thesis Open Access

MECHANICAL BEHAVIOR AND VIBRATION ANALYSIS OF FIBER REINFORCED POLYMER COMPOSITE BEAMS USING NUMERICAL METHOD

NIGATU DESTA TILAHUN

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{
"abstract": "<p>In this study, the free and forced vibration analysis of fiber reinforced plastic (FRP)<br>\ncomposite beam using numerical method (finite element analysis) and mathematical<br>\nmodeling using MATLAB are conducted. Mechanical and physical properties of FRP<br>\nare found using strength of material and semiempirical approach to get the equivalent<br>\nof those properties. The beam is configured as cantilever with dimensions of<br>\n191&times;33&times;5.66 mm3 for all analyses of vibrations. For modal analysis of vibrations<br>\ndifferent effects such as fiber volume ratio, fiber materials, angle of orientation, and<br>\nstacking sequence of laminates are discussed. From these effects, stacking sequence of<br>\nlaminates is more effective in varying stiffness and natural frequencies with unique<br>\nfiber volume ratio and same fiber material. Comparison of numerical and analytical<br>\nsolutions of natural frequencies are most approached except in mode 2 or bending<br>\nmode in y axis. Forced vibration was carried out using the same configuration of beam<br>\nas modal analysis, but with different stacking sequence of layers with harmonically<br>\nexited loads. Results of resonance of vibration occur around the natural frequencies of<br>\ncomposite.<br>\n&nbsp;</p>",
"author": [
{
"family": "NIGATU DESTA TILAHUN"
}
],
"id": "4199",
"issued": {
"date-parts": [
[
2019,
10,
25
]
]
},
"language": "eng",
"title": "MECHANICAL BEHAVIOR AND VIBRATION ANALYSIS OF FIBER REINFORCED POLYMER COMPOSITE BEAMS USING NUMERICAL METHOD",
"type": "thesis"
}
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