钢材的弹性模量E=200GPa,比例极限σp=200MPa,轴向线应变ε=0.0015,则横截面上的正应力σ=
钢材的弹性模量E=200GPa,比例极限σp=200MPa,轴向线应变ε=0.0015,则横截面上的正应力σ=
A.σ=Eε=300Mpa;
B.σ>300Mpa;
C.200Mpa<σ<300Mpa;
D.σ<200Mpa
正确答案:C
钢材的弹性模量E=200GPa,比例极限σp=200MPa,轴向线应变ε=0.0015,则横截面上的正应力σ=
A.σ=Eε=300Mpa;
B.σ>300Mpa;
C.200Mpa<σ<300Mpa;
D.σ<200Mpa
正确答案:C
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