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CONDUCTIVITY.html
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<html><head><link rel="stylesheet" type="text/css" href="style.css"/></head><body> <H2> <BR> *CONDUCTIVITY </H2> <P> Keyword type: model definition, material <P> This option is used to define the conductivity coefficients of a material. There is one optional parameter TYPE. Default is TYPE=ISO, other values are TYPE=ORTHO for orthotropic materials and TYPE=ANISO for anisotropic materials. All constants may be temperature dependent. The unit of the conductivity coefficients is energy per unit of time per unit of length per unit of temperature. <P><P> <BR> <P> First line: <UL> <LI>*CONDUCTIVITY </LI> <LI>Enter the TYPE parameter and its values, if needed </LI> </UL> <P> Following line for TYPE=ISO: <UL> <LI><SPAN CLASS="MATH"><B><IMG WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img383.png" ALT="$ \kappa$"></B></SPAN>. </LI> <LI>Temperature. </LI> </UL> Repeat this line if needed to define complete temperature dependence. <P> Following line for TYPE=ORTHO: <UL> <LI><!-- MATH $\kappa_{11}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2243.png" ALT="$ \kappa_{11}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{22}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2244.png" ALT="$ \kappa_{22}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{33}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2245.png" ALT="$ \kappa_{33}$"></B></SPAN>. </LI> <LI>Temperature. </LI> </UL> Repeat this line if needed to define complete temperature dependence. <P> Following line for TYPE=ANISO: <UL> <LI><!-- MATH $\kappa_{11}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2243.png" ALT="$ \kappa_{11}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{22}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2244.png" ALT="$ \kappa_{22}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{33}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2245.png" ALT="$ \kappa_{33}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{12}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2246.png" ALT="$ \kappa_{12}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{13}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2247.png" ALT="$ \kappa_{13}$"></B></SPAN>. </LI> <LI><!-- MATH $\kappa_{23}$ --> <SPAN CLASS="MATH"><B><IMG WIDTH="26" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" SRC="img2248.png" ALT="$ \kappa_{23}$"></B></SPAN>. </LI> <LI>Temperature. </LI> </UL> Repeat this line if needed to define complete temperature dependence. <P> <PRE>
Example:
*CONDUCTIVITY
50.,373.
100.,573.
</PRE> <P> tells you that the conductivity coefficient in a body made of this material is <SPAN CLASS="MATH"><B><IMG WIDTH="20" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img2249.png" ALT="$ 50$"></B></SPAN> at <SPAN CLASS="MATH"><B><IMG WIDTH="60" HEIGHT="16" ALIGN="BOTTOM" BORDER="0" SRC="img2250.png" ALT="$ T=373$"></B></SPAN> and <SPAN CLASS="MATH"><B><IMG WIDTH="28" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img2251.png" ALT="$ 100$"></B></SPAN> at <SPAN CLASS="MATH"><B><IMG WIDTH="60" HEIGHT="16" ALIGN="BOTTOM" BORDER="0" SRC="img2252.png" ALT="$ T=573$"></B></SPAN>. Below <SPAN CLASS="MATH"><B><IMG WIDTH="60" HEIGHT="16" ALIGN="BOTTOM" BORDER="0" SRC="img2250.png" ALT="$ T=373$"></B></SPAN> its value is set to <SPAN CLASS="MATH"><B><IMG WIDTH="20" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img2249.png" ALT="$ 50$"></B></SPAN>, above <SPAN CLASS="MATH"><B><IMG WIDTH="60" HEIGHT="16" ALIGN="BOTTOM" BORDER="0" SRC="img2252.png" ALT="$ T=573$"></B></SPAN> it is set to <SPAN CLASS="MATH"><B><IMG WIDTH="28" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img2251.png" ALT="$ 100$"></B></SPAN> and in between linear interpolation is applied. <P> <P><P> <BR> Example files: beamhtbo, oneel20fi. <P> </body></html>