• 2022-07-02
    一点处的平面应力状态如图示。sx=60MPa,sy=﹣40MPa, txy=﹣30 MPa。该单元体主应力值分别为 。[img=259x219]180305bf9c8f384.png[/img]
    A: [img=365x44]180305bfa6dd8f4.png[/img]
    B: [img=370x44]180305bfb1b1238.png[/img]
    C: [img=370x50]180305bfbd733e9.png[/img]
    D: [img=364x36]180305bfc804236.png[/img]
  • 举一反三