图示铆接件,若板与铆钉为同一材料,且已知,为充分提高材料的利用率,则铆钉的直径d应为( )。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/e25df4bccfca447c913817aeb080ae17.png
举一反三
- 在图中,若板和铆钉为同一材料,且已知[σbs]=2[τ],为了充分提高材料的利用率。则铆钉的直径d应该为()。
- 图示板和铆钉为同一材料,已知板与铆钉间的挤压容许应力、铆钉的容许剪应力[τ]之间的关系为=2[τ],为了充分提高材料的利用率,则铆钉的直径应该是()。 A: (A) B: (B) C: (C) D: (D)
- 图示铆接接头,铆钉与板件的材料相同,铆钉直径为d,则铆钉与板的挤压力为() A: F/5 B: F/10 C: F/2 D: F/4
- 铆接头的连接板厚度为,铆钉直径为。则铆钉切应力。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201801/0cdc2aea06c641ebb876a33732ea3e11.png
- 如图示并联管路,已知各支路的沿程阻力系数之比为<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/6e209020d20f4543823ce6516ae8ca06.png" />,管长之比为<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/50814fe028094040bc955d8e1542b6d2.png" />,且<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/40b4c6a9565b483590c5c7d607e7ed66.png" />,则两支管的流量之比<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/1055534bfce6426a94682ba086a5b17e.png" />=()。<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/77815369f5cd41f3a2e68b9524b454c5.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/0cd231eebe45465f941a0f614743e6d2.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7555afa5223e40bf89ca575cf7b52754.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/1b06cd474b844644a6d97ad87d208e94.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/d0b2bca045414236a7d1c9925a9264f2.png" />