已知单元体的σ1、σ2、E、μ,主应变ε1、ε2均已知，那么ε3＝？https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/66a5a29dc01441a999d5efb31bfc856f.png

2021-04-14

已知单元体的σ1、σ2、E、μ,主应变ε1、ε2均已知，那么ε3＝？https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/66a5a29dc01441a999d5efb31bfc856f.png

答案：

-μ(σ1+σ2) /E

举一反三

内容

0
图示刚架的弯矩图中正确的是（）。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/96bab3bc877f45e6bc366a1ed24b02e3.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/233d0c9147694598ab60919b0ee7a246.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/f8e911921bb447bdb2e8216ff1bca5cf.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/5c0b8a15b9174de3b636c8ea8a2eb281.png" />
1
图示刚架的弯矩图中正确的是（）。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/9e0e3376473a4da185371f58ac37647e.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/860e38197af74aec8db44a11df45c324.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/6ef75cc1379348698b95f277eda55fdd.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/bc248bb6f0cd424eae6b1e66aeb87da6.png" />
2
线、面相交正确的投影图正确是（） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/347921ea188e4488849c59bcab8d0de8.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/8b5ae8a84e6d4de492bc48ed34745c9c.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/f17e955e47a14fb8a5ca410f28eb60d7.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/db67dba91b6846739c0439391bf502dc.png" />
3
下列逻辑表示式正确的是____。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/3d0a382ad7af45b29e9047f93676248a.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/28eb85c1fab841768b9d856cb1876018.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/63175bfac29847c4b1ad6359b59006cd.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/cca21ab2476249f78e8e64d81e4dbba0.png" />
4
下列逻辑表示式正确的是。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/94c2d9d3f8654db9a9533e4cb9d03865.png"> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/9877f3b3cbf2406680aac42fc3196a85.png"> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/dc0d7c1e1d5b49ccb46dcd9030f51916.png"> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/c82aa3b140eb4f9bbe3ace028bfb3e7a.png">