• 2022-06-15
    图示为某铸铁构件内危险点的应力状态,许用应力[σ],可以采用的强度条件为( )[img=410x222]1803be496bd9371.png[/img]
    A: [img=129x31]1803be4974e464a.png[/img]
    B: [img=129x31]1803be497d11997.png[/img]
    C: [img=55x25]1803be49851ecb0.png[/img], [img=95x45]1803be498cd5488.png[/img]
    D: [img=158x48]1803be4994a47d5.png[/img]