Units

While essentially unitless, Simulation Utility has been written to follow the mm/kg/J/s standard for units. The user may use an equivalent system of units after ensuring the relations are consistent. A brief list of the primary input and output variables is given with their associated units.

Angle:° (Degrees)

Convection: W/(mm²°C)

Density: kg/mm³

Displacement: mm

Elastic (Young's) Modulus: N/mm²

Hatch spacing: mm

Laser absorptivity coefficient: W/W (unitless)

Laser radius: mm

Laser power: W

Latent heat: J/kg

Position: mm

Specific heat capacity: J/(kg °C)

Strain: mm/mm (unitless)

Temperature: ° C

Thermal conductivity: W/(mm °C)

Thermal emissivity: W/W (unitless)

Thermal expansion coefficient: µm /( µm °C) (or 1/°C)

Time: s

Velocity: mm/s

Yield strength: MPa