• 2022-11-03
    一点处的应力状态分别如图所示,试求该点处的主应力及最大切应力。(图中应力单位为MPa)[img=334x298]1803c0be45fe8e3.png[/img]
    A: 130MPa, 30MPa, -30MPa, 80MPa
    B: 30MPa, -30MPa, -130, 80MPa
    C: 130MPa, -30MPa, -30MPa, 80MPa
    D: 130MPa, 30MPa, -30MPa, 40MPa