Question

请教一个材料力学的问题~请各位高手帮忙做个受力分析和解答！感谢了

想请教各位高手两个材料力学最基本的题目，由于以前没做过这方面的题目，所以比较不懂，希望各位高手能帮我解答一下~

题目如下：
1. Three steel plates, each 15 mm thick, are joined by two 18-mm diameter rivets as shown
in Figure 1.
(a) If the load P = 40 kN, what is the largest bearing stress acting on the rivets?
(b) If the ultimate shear stress for the rivets is 180 MPa, what force Pult is required to
cause the rivets to fail in shear? (Disregard friction between the plates.)

Answer 1

如图，希望能帮到你。