• 2021-04-14
    用等边角钢制成一端固定,一端自由的细长压杆,已知材料的弹性模量E,Ix = m, Ix0 = n,形心C,杆长l,临界载荷Fcr等于(  )。http://nos.netease.com/edu-image/79BB28E8C53F522FFBBB3CDE5AFDF7D5.jpg?imageView&thumbnail=520x520&quality=100