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
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 .
- For a bar under axial tension, the sections with the maximum normal stress and maximum shear stress are A: the cross section and inclined section with inclined angle 45°, respectively. B: both the cross sections. C: the inclined section with inclined angle 45°and cross section, respectively. D: both the inclined sections with inclined angle 45°.
- 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
- A beam with rectangular cross section is subjected to pure bending. The normal stress distribution on the cross section should be A: [img=223x234]1803277f2c06d7c.png[/img] B: [img=229x233]1803277f373c880.png[/img] C: [img=265x251]1803277f41bd72e.png[/img] D: [img=255x251]1803277f4db7030.png[/img]
- A beam with rectangular cross section is subjected to pure bending. The normal stress distribution on the cross section should be A: [img=223x234]1803a10b99083e0.png[/img] B: [img=229x233]1803a10ba37dd25.png[/img] C: [img=265x251]1803a10bae0cf20.png[/img] D: [img=255x251]1803a10bb9dd0ef.png[/img]