An equal cross-section straight rod is exerted by the loads shown in the figure, the cross-sectional area of the rod is A=100mm2. Determine the normal stress on the cross-section m-k.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/23fd5f3f3d6d4bb99e3cc743abf84ff6.png
举一反三
- If the normal stress on the cross section of the axial tensile rod is σ, then the normal stress and shear stress on the 45° degrees section are .
- In the fixedly combined circular shaft shown in the figure, the central part of the material is steel, shear modulus G1=80GPa, the outer material is copper and the shear modulus G2=39GPa. The distribution of shearing stress on cross section is___after torsional deformation. ① ② ③ ④http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e48a2be70d9f4eec8d38b0270076b6e2.png
- For axial compression members, because the normal stress on the cross section is evenly distributed, it is not necessary to consider the reasonable shape of the cross section
- 中国大学MOOC: A beam with rectangular cross section is subjected to pure bending. The normal stress distribution on the cross section should be
- For the columns with the same length, material, constraint conditions and cross-sectional area, etc., the stability of which kind of shape of cross-section (see the following figures)is best ? . And the stability of which is worst? .http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/64415e4a30114dd688f87cc28116d571.png