• 2022-06-14
    图示两个正方形截面杆件,(a)为变截面杆件,(b)为等截面杆件。两杆承受相同重量的冲击物作用,则两根杆的动荷因数和最大动应力满足()。[img=272x331]18030bb9e7c37bb.png[/img]
    A: [img=80x22]18030bb9ef8b5a2.png[/img] ,[img=70x19]18030bb9f7b7578.png[/img]
    B: [img=80x22]18030bb9ef8b5a2.png[/img],[img=70x19]18030bba08e6a7c.png[/img]
    C: [img=80x22]18030bba10caa7d.png[/img],[img=70x19]18030bba08e6a7c.png[/img]
    D: [img=80x22]18030bba10caa7d.png[/img],[img=70x19]18030bb9f7b7578.png[/img]
  • 举一反三