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Posted 2012年10月2日 GMT-0400上午6:14 Structural Mechanics & Thermal Stresses Version 4.2, Version 4.2a, Version 4.3 10 Replies
thanks for reply!!!
what about a density of something like (assuming rho is a scalar)
"rho*(0.8+0.2*2*(r-rmin)*(rmax-r) / (rmax-rmin))"
this should make a nice parabola, non ?
Très perspicace I see ;) As often I read through the question a bit too quickly ;)
Thanks for the correction, with COMSOL I check the units, but I'm not by my WS, and obviously getting lazy ...
Having fun COMSLing,
but only from tomorrow morning off
I'm not sure we understand us all correctly, but if you select an Edge in 2D then you have access to a variable "s" that goes from 0 to 1 along the edge in the direction of the "edge" arrow, you can use this to define a variable along an edge.
If it is for a domain in 2D (surface) then by selecting this entity, you implicitly define an "(x,y)" coordinate and if you define a variable on this entity it can be seen as a field i.e "rho(x,y)", with the trivial case "rho" is a scalar hence independent of (x,y)
This is why and how material properties are dependent in T and pA ...
I can not find a tutorial to provide guidance
you can then "define" a cylindrical coordinate and refer to sys2.r or whatever your radial vector name is ;)
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