Coordinate & Unit Conventions ============================= - The mesh (LS-DYNA) and Field II spatial axis conventions are different (this is unfortunate, but maintained for legacy compatibility). - LS-DYNA and mesh-related tools use a rotated, right-hand rule coorindate system: - Axial extends into -z, - Lateral extends into +y, - Elevation extends into -x. - LS-DYNA is run unitless, but scripts assume and scale quantitites assuming a CGS unit system. - Field II tools a standard, right-hand rule coordinate system: - Axial extends into +z, - Lateral extends into +x, - Elevation extends into +y. - Field II internally uses MKS units, but scripts will specify units on the inputs