Discussion
A \( 2 \) mm skin of \( E = 70 \) GPa is stressed to \( 200 \) MPa at the stiffener. Its effective width is nearest to
Answer: A
Correct answer: 71 mm
The effective width of a buckled panel is
\[ 2w = 1.9t\sqrt{\frac{E}{\sigma}} = 1.9 \times 2 \times \sqrt{\frac{70\,000}{200}} = 3.8 \times 18.71 \approx 71 \ \mathrm{mm} \]with the stresses in consistent units. Note the square root: quadrupling the stiffener stress halves the effective width, which is why the structure grows less efficient as it approaches its ultimate load.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development