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多选题 
冲床上用冲头冲一个厚度为 t,直径为 d 的圆孔,则
A. 挤压面面积为
B. 剪切面面积为
学科：工程力学
时间：2023-09-27 00:04:15
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题目1单选题
<img src="https://tihai-oss-cloud.itihey.com/img/821811539103a430d6dfa19b22e61421.png"><img src="https://tihai-oss-cloud.itihey.com/img/dcda87edd24ccadac36d5df302d3a6a8.png">如图螺栓受力发生剪切和挤压变形,已知螺栓直径为d,长度为l,钢板厚度为t,则螺栓剪切面面积为A. <img src="https://tihai-oss-cloud.itihey.com/img/bd0f7aa9e8a4a318beaa469bdcae217d.png">B. dlC. dt
题目2单选题
<img src="https://tihai-oss-cloud.itihey.com/img/821811539103a430d6dfa19b22e61421.png"><img src="https://tihai-oss-cloud.itihey.com/img/dcda87edd24ccadac36d5df302d3a6a8.png">如图螺栓受力发生剪切和挤压变形,已知螺栓直径为d,长度为l,钢板厚度为t,则螺栓挤压面面积为A. dtB. dlC. <img src="https://tihai-oss-cloud.itihey.com/img/bd0f7aa9e8a4a318beaa469bdcae217d.png">
题目3单选题
<img src="https://tihai-oss-cloud.itihey.com/img/821811539103a430d6dfa19b22e61421.png">切应力在剪切面上实际是 分布的A. 均匀B. 不均匀
题目4单选题
<img src="https://tihai-oss-cloud.itihey.com/img/9a2ff66097d0af7fc22694209b6b480f.png">图示平键联接,已知轴传递的转矩M,轴的直径d,键宽度b,高度h,剪切面面积为 .挤压面面积为A. blB. bhC. hlD. hl/2
题目5多选题
发生剪切和挤压变形的受力图有A. <img src="https://tihai-oss-cloud.itihey.com/img/a1b735faf8df241e17113aad4c98c55e.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/821811539103a430d6dfa19b22e61421.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/40c5036b1b80cb82d446d3d70e8f9978.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/c9e0f8851926aa6c90fa3dfeb2e7b271.png">
题目6多选题
<img src="https://tihai-oss-cloud.itihey.com/img/69094bf0236d34390e8f6d927a8a190c.png">冲床上用冲头冲一个厚度为 t,直径为 d 的圆孔,则A. 挤压面面积为<img src="https://tihai-oss-cloud.itihey.com/img/a6589a4ced41d1468b19f9339a6e561f.png">B. 剪切面面积为<img src="https://tihai-oss-cloud.itihey.com/img/ce998b0e5ef9df6409af5ed7b65b6c61.png">C. dtD. 2dt
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