September 20, 2010 Technical note Open Access

G. Raffone

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  <identifier identifierType="DOI">10.15161/oar.it/76867</identifier>
  <creators>
    <creator>
      <creatorName>G. Raffone</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-7817-6175</nameIdentifier>
      <affiliation>INFN-LNF</affiliation>
    </creator>
  </creators>
  <titles>
    <title>CMS Trapezoidal GEM Foils Structural Analysis</title>
  </titles>
  <publisher>INFN Open Access Repository</publisher>
  <publicationYear>2010</publicationYear>
  <subjects>
    <subject>transversely isotropic multilayer, homogenization</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2010-09-20</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Technical note</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.openaccessrepository.it/record/76867</alternateIdentifier>
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  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;The demand of large area GEM detectors requires extreme working conditions of the layered foils from structural point of view; larger area need higher biaxial tensile loads to overcome large deflections and the related stresses may exceed the copper yield limit just around the holes; the present work shows that for a trapezoidal CMS GEM foil (W=1040 mm; L1=530 mm; L2=345 mm) the sag due its own weight is about f =28.6 &amp;mu;m (electrostatic loads not included) for a tensioning of S=1 N/mm; the related stresses are lower than the yield only in a biaxial load. Numerical results are from ANSYS Educational v.10 [1] and their level of accuracy is very good when compared to some theoretical and experimental results.&lt;br&gt;
&amp;nbsp;&lt;/p&gt;</description>
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