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NODAL_THICKNESS.html
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NODAL_THICKNESS.html
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<html><head><link rel="stylesheet" type="text/css" href="style.css"/></head><body> <H2> <BR> *NODAL THICKNESS </H2> <P> Keyword type: model definition <P> This option is used to assign a thickness to a node or to a node set. There are no parameters. This keyword only makes sense for nodes belonging to plane stress/strain elements, shell elements and beam elements. For all of these except for the beam elements one thickness value should be given. For plane stress/strain and shell elements this is the thickness in normal direction. The normal direction can be defined by using the *NORMAL keyword card. If none is defined, the normal is calculated based on the geometrical data. For beam elements two thicknesses can be defined: one in 1-direction and one in 2-direction. The 1-direction can be defined on the *BEAM SECTION card, the 2-direction by the *NORMAL card. <P> The *NODAL THICKNESS card takes precedence over any other thickness definitions if the NODAL THICKNESS parameter was selected on the *BEAM SECTION, *SHELL SECTION or *SOLID SECTION card. Right now, it cannot be used for composite materials. <P> For structures in which axisymmetric elements (type CAX*) are present any thickness defined on the present card for plane stress/strain and shell elements applies to 360<SPAN CLASS="MATH"><B><IMG WIDTH="11" HEIGHT="16" ALIGN="BOTTOM" BORDER="0" SRC="img325.png" ALT="$ ^\circ$"></B></SPAN>. <P><P> <BR> <P> First line: <UL> <LI>*NODAL THICKNESS </LI> </UL> <P> Following line: <UL> <LI>Node or set of nodes previously defined </LI> <LI>Thickness 1 </LI> <LI>Thickness 2 </LI> </UL> <P> <PRE>
Example:
*NODAL THICKNESS
22,0.05,0.08
</PRE> <P> assigns to node 22 the thickness 0.05 and 0.08. Any plane stress or shell element containing node 22 will have a local thickness of 0.05 unit lengths at node 22. Any beam element containing node 22 will have a thickness of 0.05 unit length in local 1-direction and a thickness of 0.08 unit length in local 2-direction. <P> <P><P> <BR> Example files: shell1. <P> </body></html>