18.矩形截面的外伸梁受载情况如图．在x=a的横截面上点A处的切应力为______．https://p.ananas.chaoxing.com/star3/origin/d6aafe16d498ed8fd41d28264db36499.pnghttps://p.ananas.chaoxing.com/star3/origin/946a23470e6ef6a7fa59b26d6528ab6e.png
举一反三
- 图示工字钢简支梁,弹性模量E=200GPa。若在力偶矩作用下测得 横截面A处梁顶面的纵向应变,则梁内最大弯曲正应力=/ananas/latex/p/20618/ananas/latex/p/1589156/ananas/latex/p/479292https://p.ananas.chaoxing.com/star3/origin/990ccef3c71765b6e90f99853f513a74.png
- 图示梁的受载情况对于中央截面C为反对称。和分别表示中央截面C的剪力和弯矩，则下列结论中哪个是正确的？/ananas/latex/p/73691/ananas/latex/p/20529https://p.ananas.chaoxing.com/star3/origin/566fcd8e2a589b1833181a6b5e601b9e.png
- 如图所示工字钢简支梁，弹性模量E=200GPa 。若在力偶矩作用下测得横截面A处梁顶面的纵向应变，则梁内最大弯曲正应力 为_____。/ananas/latex/p/20618/ananas/latex/p/849793https://p.ananas.chaoxing.com/star3/origin/09a1e153a05f009920623c3641510b62.png
- 使,,,的值为https://p.ananas.chaoxing.com/star3/origin/7a71315286a845cd71d58a43d172d70e.pnghttps://p.ananas.chaoxing.com/star3/origin/82992dfd55feeb0dbc3accfc460e8e6f.pnghttps://p.ananas.chaoxing.com/star3/origin/d072c844f7cfa56460a42ea3424f0622.pnghttps://p.ananas.chaoxing.com/star3/origin/d03cce0f654cef79e0f8e9e14f223092.png
- 以下说法正确的是 https://p.ananas.chaoxing.com/star3/origin/32620d45b840963fcfd2a9e499329436.png https://p.ananas.chaoxing.com/star3/origin/be2489a6491756903a1a67528363e754.png https://p.ananas.chaoxing.com/star3/origin/c5d98544629d58d5c134ed8bc9743922.png https://p.ananas.chaoxing.com/star3/origin/eef7c4f0c58f9f292270fbd5e9600bd3.png