• 2022-07-01
    写出下图问题在极坐标系中内侧圆弧边界的的应力边界条件[img=298x325]1803b386d709282.jpg[/img]
    A: [img=113x84]1803b386e29c779.jpg[/img]
    B: [img=113x84]1803b386ece4dd0.jpg[/img]
    C: [img=217x81]1803b386f86b29f.jpg[/img]
    D: [img=291x81]1803b3870275761.jpg[/img]