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CMS Trapezoidal GEM Foils Structural Analysis

G. Raffone

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{
  "DOI": "10.15161/oar.it/76867", 
  "abstract": "<p>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 &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.<br>\n&nbsp;</p>", 
  "author": [
    {
      "family": "G. Raffone"
    }
  ], 
  "id": "76867", 
  "issued": {
    "date-parts": [
      [
        2010, 
        9, 
        20
      ]
    ]
  }, 
  "language": "eng", 
  "title": "CMS Trapezoidal GEM Foils Structural Analysis", 
  "type": "article"
}
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Publication date:
September 20, 2010
DOI:
10.15161/oar.it/76867

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Keyword(s):
transversely isotropic multilayer, homogenization
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