• 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=157x107]17e0ad40b1e18c6.jpg[/img]
    A: σ1=57MPa,σ2=0,σ3=-7MPa,τmax=25MPa
    B: σ1=57MPa,σ2=0,σ3=-7MPa,τmax=32MPa
    C: σ1=57MPa,σ2=0,σ3=-7MPa,τmax=28.5MPa
    D: σ1=57MPa,σ2=0,σ3=-7MPa,τmax=3.5MPa