<materials>

<!--
unit system: us (ft)
  length: ft
  force: lbf
  mass: slug (i.e., lbf * s^2 / ft)
  density: slug / ft^3 (i.e., lbf * s^2 / ft^4)
  pressure: lbf / ft^2
-->

  <material name="Aluminum 8009" type="isotropic">
    <density>5.639341824</density>
    <elastic>
      <e>1886.4e6</e>
      <nu>3.30e-1</nu>
    </elastic>
  </material>  
  <lamina name="Aluminum 8009_0.01">
    <material>Aluminum 8009</material>
    <thickness>8.33e-4</thickness>
  </lamina>


  <material name="lead" type="isotropic">
    <density>22.0</density>
    <elastic>
      <e>1e-3</e>
      <nu>0</nu>
    </elastic>
  </material>

  <material name="Rohacell 70" type="orthotropic">
    <density>0.146</density>
    <elastic>
      <e1>1.89e6</e1>
      <e2>1.89e6</e2>
      <e3>1.89e6</e3>
      <g12>593e3</g12>
      <g13>593e3</g13>
      <g23>593e3</g23>
      <nu12>3.15E-01</nu12>
      <nu13>3.15E-01</nu13>
      <nu23>3.00E-01</nu23>
    </elastic>
  </material>

  <material name="Plascore PN2-3/16OX3.0" type="orthotropic">
    <density>9.35e-2</density>
    <elastic>
      <e1>144e3</e1>
      <e2>144e3</e2>
      <e3>2880e3</e3>
      <g12>144e3</g12>
      <g23>835e3</g23>
      <g13>504e3</g13>
      <nu12>3.00E-01</nu12>
      <nu13>1.00E-02</nu13>
      <nu23>1.00E-02</nu23>
    </elastic>
  </material>

  <material name="AS4 12k/E7K8" type="transversely isotropic">
    <density>3.027</density>
    <elastic>
      <e1>2779.2E+06</e1>
      <e2>177.12E+06</e2>
      <g12>1052.64E+06</g12>
      <nu12>3.20E-01</nu12>
    </elastic>
  </material>
  <lamina name="AS4 12k/E7K8_0.0054">
    <material>AS4 12k/E7K8</material>
    <thickness>4.5e-4</thickness>
  </lamina>

  <material name="S2/SP381" type="transversely isotropic">
    <density>3.589588</density>
    <elastic>
      <e1>1015.2E+06</e1>
      <e2>283.68E+06</e2>
      <g12>84.96E+06</g12>
      <nu12>0.263</nu12>
    </elastic>
  </material>
  <lamina name="S2/SP381_0.0092">
    <material>S2/SP381</material>
    <thickness>7.667e-4</thickness>
  </lamina>

  <material name="T300 15k/976" type="transversely isotropic">
    <density>3.104511</density>
    <elastic>
      <e1>2822.4E+06</e1>
      <e2>192.96E+06</e2>
      <g12>131.04E+06</g12>
      <nu12>3.48E-01</nu12>
    </elastic>
  </material>
  <lamina name="T300 15k/976_0.0053">
    <material>T300 15k/976</material>
    <thickness>4.417e-4</thickness>
  </lamina>

  <material name="T650-35 12k/976" type="transversely isotropic">
    <density>3.085123</density>
    <elastic>
      <e1>3168E+06</e1>
      <e2>187.2E+06</e2>
      <g12>107.28E+06</g12>
      <nu12>1.150E-01</nu12>
    </elastic>
  </material>
  <lamina name="T650-35 12k/976_0.0052">
    <material>T650-35 12k/976</material>
    <thickness>4.333e-4</thickness>
  </lamina>

  <material name="T700 24K/E765" type="transversely isotropic">
    <density>3.007487</density>
    <elastic>
      <e1>2694.24E+06</e1>
      <e2>195.84E+06</e2>
      <g12>93.6E+06</g12>
      <nu12>0.319</nu12>
    </elastic>
  </material>
  <lamina name="T700 24K/E765_0.0056">
    <material>T700 24K/E765</material>
    <thickness>4.667e-4</thickness>
  </lamina>

</materials>
