Which measure can not improve the stability of slender compression bar.
A. Increase the cross-sectional area of the compression bar
B. Increase the surface finish of the compression bar
C. Reduce the flexibility of the compression bar
D. Materials with large elastic modulus shall be selected
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Buckling of the strut will occur in the longitudinal plane of ().
A. Maximum length factor
B. Minimum section inertia radius
C. Maximum flexibility
D. Minimumflexibility
The compression bar belongs to a slender bar. Whether it is a medium long bar or a short thick bar is determined according to the () of the compression bar.
A. length
B. Cross section size
Critical stress
D. flexibility
Round section compression bar hinged at both ends, 1m long and 50mm in diameter. Its flexibility is ()
A. 60
B. 66.7
C. 80
D. 50
For slender compression bars, (), the critical stress σ the bigger.
A. The larger the elastic modulus E or the smaller the flexibility λ
B. The larger the elastic modulus E or the larger the flexibility λ
C. The smallerthe elastic modulus E or thelarger the flexibility λ
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