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UNIT_SYSTEM

Input handling

*UNIT_SYSTEM
units, temperature

Parameter definition

Variable
Description
units
Unit system
options:
SI $\rightarrow$ [m, kg, s]
MMTONS or MM/TON/S $\rightarrow$ [mm, ton, s]
CMGUS or CM/G/US $\rightarrow$ [cm, g, $\mu$s]
IPS $\rightarrow$ [in, slinch, s]
MMKGMS or MM/KG/MS $\rightarrow$ [mm, kg, ms]
CMGS or CM/G/S $\rightarrow$ [cm, g, s]
MMGMS or MM/G/MS $\rightarrow$ [mm, g, ms]
MMMGMS or MM/MG/MS $\rightarrow$ [mm, mg, ms]
temperature
Temperature units
options: K, C, F
default: K (F if units=IPS)

Description

Command to inform the solver of used unit system. A unit system must be specified if the PARTICLE_DOMAIN command is used. Specifying a unit system also facilitates the scanning for suspected errors in the input deck. Possible errors or mistakes are reported in the ASCII file impetus.attention.

Example

Unit system conversion

Conversion of material parameters from MM/TON/S to SI units:

*UNIT_SYSTEM SI ~convert_from_MMTONS *MAT_METAL 1, 2.7e-9, 70.0e3, 0.3 1 *CURVE 1, 0, 0, strain, stress 0.0, 200.0 1.0, 280.0 ~end_convert

The input above is equivalent to:

*UNIT_SYSTEM SI *MAT_METAL 1, 2700.0, 70.0e9, 0.3 1 *CURVE 1 0.0, 200.0e6 1.0, 280.0e6