Thesis Open Access

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

NIGATU DESTA TILAHUN

### DataCite XML Export

<?xml version='1.0' encoding='utf-8'?>
<creators>
<creator>
<creatorName>NIGATU DESTA TILAHUN</creatorName>
<affiliation>ADDIS ABABA SCIENCE AND TECHNOLOGY UNIVERSITY</affiliation>
</creator>
</creators>
<titles>
<title>MECHANICAL BEHAVIOR AND VIBRATION ANALYSIS OF FIBER REINFORCED POLYMER COMPOSITE BEAMS USING NUMERICAL METHOD</title>
</titles>
<publisher>National Academic Digital Repository of Ethiopia</publisher>
<publicationYear>2019</publicationYear>
<subjects>
<subject>composite, vibration, natural frequency, numerical, harmonically, resonance.</subject>
</subjects>
<contributors>
<contributor contributorType="Supervisor">
<contributorName>Professor Hirpa G. Lemu</contributorName>
<affiliation>ADDIS ABABA SCIENCE AND TECHNOLOGY UNIVERSITY</affiliation>
</contributor>
<contributor contributorType="Supervisor">
<contributorName>Hirpa G. Lemu, (PhD).,</contributorName>
<affiliation>ADDIS ABABA SCIENCE AND TECHNOLOGY UNIVERSITY</affiliation>
</contributor>
</contributors>
<dates>
<date dateType="Issued">2019-10-25</date>
</dates>
<language>en</language>
<resourceType resourceTypeGeneral="Text">Thesis</resourceType>
<alternateIdentifiers>
</alternateIdentifiers>
<relatedIdentifiers>
</relatedIdentifiers>
<rightsList>
<rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
</rightsList>
<descriptions>
<description descriptionType="Abstract">&lt;p&gt;In this study, the free and forced vibration analysis of fiber reinforced plastic (FRP)&lt;br&gt;
composite beam using numerical method (finite element analysis) and mathematical&lt;br&gt;
modeling using MATLAB are conducted. Mechanical and physical properties of FRP&lt;br&gt;
are found using strength of material and semiempirical approach to get the equivalent&lt;br&gt;
of those properties. The beam is configured as cantilever with dimensions of&lt;br&gt;
191&amp;times;33&amp;times;5.66 mm3 for all analyses of vibrations. For modal analysis of vibrations&lt;br&gt;
different effects such as fiber volume ratio, fiber materials, angle of orientation, and&lt;br&gt;
stacking sequence of laminates are discussed. From these effects, stacking sequence of&lt;br&gt;
laminates is more effective in varying stiffness and natural frequencies with unique&lt;br&gt;
fiber volume ratio and same fiber material. Comparison of numerical and analytical&lt;br&gt;
solutions of natural frequencies are most approached except in mode 2 or bending&lt;br&gt;
mode in y axis. Forced vibration was carried out using the same configuration of beam&lt;br&gt;
as modal analysis, but with different stacking sequence of layers with harmonically&lt;br&gt;
exited loads. Results of resonance of vibration occur around the natural frequencies of&lt;br&gt;
composite.&lt;br&gt;
&amp;nbsp;&lt;/p&gt;</description>
</descriptions>
</resource>

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