题目内容
The compression bar made of the same material, the greater its flexibility, the easier to instability
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The critical pressure of the compression bar is directly proportional to the elastic modulus of the material
Two compression bars with the same material, length, cross-sectional area and constraints must have the same critical force
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
When the length of the slender compression bar is doubled and other conditions remain unchanged, the critical force becomes 1 / 4 of the original; If the length is halved, the critical force becomes 4 times of the original.
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