Question

Which of the following statements are correct?
1. Experimental results on thin-walled tubes show that maximum normal stress theory is valid.
2. Normal stress theory is valid in case of brittle materials.
3. In case of pure shear, St. Venant's theory is more valid than other theories.
4. Tresca's theory is very closely sub-stantiated by experimental results.
5. In maximum stress theory, the yield locus is a hexagon.

• A. 1, 2 and 3
• B. 2, 4 and 5
• C. 1, 2 and 4
• D. 2, 3 and 4

Answer 1

The correct option is B 2, 4 and 5

2, 4 and 5