• 2022-07-02
    图示点的应力状态,应力的单位为MPa,其主应力、最大切应力是() [img=171x176]17e0ad40bd6e004.jpg[/img]
    A: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=62.1MPa
    B: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=62.1MPa
    C: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=49.2MPa
    D: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=49.2MPa