ABAQUS Volume II: I–Z - Manual (Page 257)

*PHYSICAL CONSTANTS
16.7 *PHYSICAL CONSTANTS: Specify physical constants.
This option is used to define physical constants necessary for an analysis; since ABAQUS has no built-in
units, no default values are provided. If a physical constant required for the analysis is not given, ABAQUS
will issue a fatal error message. The units used for the constants must be consistent with the remaining input
data.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
References:
•
“Uncoupled heat transfer analysis,” Section 6.5.2 of the ABAQUS Analysis User’s Manual
•
“Mass diffusion analysis,” Section 6.8.1 of the ABAQUS Analysis User’s Manual
•
“Modeling fluid-filled cavities,” Section 11.5.1 of the ABAQUS Analysis User’s Manual
•
“Rate-dependent plasticity: creep and swelling,” Section 18.2.4 of the ABAQUS Analysis User’s Manual
•
“Hydrostatic fluid models,” Section 20.4.1 of the ABAQUS Analysis User’s Manual
•
“Diffusivity,” Section 20.5.1 of the ABAQUS Analysis User’s Manual
•
“Solubility,” Section 20.5.2 of the ABAQUS Analysis User’s Manual
•
“Thermal contact properties,” Section 30.2.1 of the ABAQUS Analysis User’s Manual
•
“Cavity radiation,” Section 32.1.1 of the ABAQUS Analysis User’s Manual
Optional parameters:
ABSOLUTE ZERO
Set this parameter equal to the absolute zero on the temperature scale chosen. For example, if the
analysis uses temperature in degrees Celsius, set ABSOLUTE ZERO=−273.15.
STEFAN BOLTZMANN
Set this parameter equal to the Stefan Boltzmann constant. For example, STEFAN
BOLTZMANN=5.669 × 10
−8
Joule per sec m
2
Kelvin
4
in SI units.
UNIVERSAL GAS CONSTANT
Set this parameter equal to the universal gas constant. For example, UNIVERSAL GAS
CONSTANT=8.31434 Joule per mole Kelvin in SI units.
There are no data lines associated with this option.
16.7–1
ABAQUS Version 6.1 Module: ID:
Printed on: