What material properties need to be specified in a thermal-electrical analysis ?

GGoneWithTheWnd

Q5.2 : What material properties need to be specified in a thermal-electrical analysis ?
Referring to Section 9.1.3 of the ABAQUS User's manual you will require the heat transfer properties as well as the electrical properties. These are listed below :
Heat Transfer properties
*CONDUCTIVITY
*LATENT HEAT
*SPECIFIC HEAT
*HEAT GENERATION
Electrical properties
*DIELECTRIC
*ELECTRICAL CONDUCTIVITY
*JOULE HEAT FRACTION
*PIEZOELECTRIC
This forms the complete set of properties. If Piezoelectric elements are not used then *PIEZOELECTRIC and *DIELECTRIC properties will not be required.
If only the steady state heat transfer response is of interest then *SPECIFIC HEAT properties are not required. Similarly if there are no phase changes involved then *LATENT HEAT is not required.
*JOULE HEAT FRACTION is used to specify the fraction of electrical energy that will be released as heat.
Example problem 3.2.24 - thermal-electrical modeling of an automotive fuse illustrates the thermal-electrical analysis.
ABAQUS allows for redundant material properties to be specified. It will simply ignore the material properties not required for the current analysis.
Typical example of material properties :
*MATERIAL, NAME=ZINC
*CONDUCTIVITY
0.1121,  20.0
0.1103, 100.0
*ELECTRICAL CONDUCTIVITY
16.75E3,  20.0
12.92E3, 100.0
*JOULE HEAT FRACTION
  1.0
*DENSITY
  7.14E-6
*SPECIFIC HEAT
  389.0

kingleeyuer

there should be resistivity