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Home/ Quiz in Machine Design/Quiz on Flexural Buckling of Columns

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On: March 5, 2024 Posted in Quiz in Machine Design Views: 38

Quiz on Flexural Buckling of Columns

Quiz on Flexural Buckling of Columns

Welcome to your Quiz on Flexural Buckling of Columns

1.A hallow circular shaft of inner diameter 254.46mm and outer diameter 273 mm and length 2.569 m is bolted to roof at top and bolted to floor at bottom end. The Young’s modulus is 157.7 GPa. The hallow shaft is subjected to vertical compressive load. What is the critical buckling load (Pcr) of the column?

2. What is the effective slenderness ratio of the column mentioned in question no.1?

3. What is the critical buckling stress for the column mentioned in the question no.1?

4. What is the mode of failure for the column mentioned in question.1?

5. Which of the following factor does not affect the critical buckling load of a column?

6. Consider a column under compressive load. Following characteristics represents which mode of failure?

  1. Sudden deformation or bending under compressive load
  2. Failure even below the ultimate strength of material.
  3. Sudden failure with no signs of warning.
  4. The strength of the material strongly depends on cross-sectional geometry.

7. Which of the following types of cross-sections generally has the highest buckling resistance for a given amount of material?

8. What is the effect of lateral bracing on the buckling behaviour of a column?

9. You are designing a steel column for a building. The column will be 5 meters long and have a fixed-fixed end condition. You have two options for the cross-section:

Option A: Solid square with a side length of 10 cm.

Option B: Hollow circular tube with an outer diameter of 12 cm and inner diameter of 8 cm.

Both options use the same amount of material. Considering the critical buckling load (Pcr), which option would you choose?

10. You are designing a support structure for a bridge and need to choose between two different column materials with the same Young's modulus (E) but different densities (ρ). Which one will you choose?

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