... ABAQUS, 12 × 12 × 2, C3D20, 11 ,664 DOF NASTRAN, 12 × 12 × 2, CHEXA20, 11 ,664 DOF I-DEAS, 12 × 12 × 2 (parabolic), 11 ,664 DOF I-DEAS, 6 × 6 × 2 (parabolic), 2, 916 DOF I-DEAS, 12 × 12 ... C3D20, 61, 200 DOF ABAQUS, 12 × 12 × 2, C3D20, 11 ,664 DOF NASTRAN, 12 × 12 × 2, CHEXA20, 11 ,664 DOF I-DEAS, 12 × 12 × 2 (parabolic), 11 ,664 DOF I-DEAS, 6 × 6 × 2 (parabolic), 2, 916 ... 0.25330.2693 0.2 613 0.2730 TB 0.07580.0758 0.08280.0763 0 .10 100.0778 0 .10 050.0775 0 .10 100.0780 0.09670.0786 0 .17 090.0645 0 .16 430.0665 TB 0. 718 0. 718 0. 719 0. 7 21 0. 719 0.725 0. 719 0.725 0.7220.726...