Thesis Open Access

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

NIGATU DESTA TILAHUN


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  <identifier identifierType="DOI">10.20372/nadre/4199</identifier>
  <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>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/4199</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre/4198</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/aastu</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/nadre</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <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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