0 mm 1 0 0 0 mm -30 mm 0 mm 0 1 0 0 mm 0 0 1 0 mm 1 0 0 0 mm 0 0 1 20000 GPa/m 0.5 1 GPa/m 20000 GPa/m 0.5 1 GPa/m 0 m 0 1 0