3D elastoplasticity numerical analysis was done for the old casing design using ABAQUS FEM software and for the casing with wall t.

• 为此,应用ABAQUS有限元软件对原设计方案进行了三维弹塑性数值分析,进一步对壁厚增加以后的套管进行了弹塑性数值模拟分析。