Computer · Mechanics of Materials
In a structural member subjected to combined axial direct load and bending, if the magnitude of direct stress (σd) is less than the maximum bending stress (σb), what will be the nature of the minimum resultant stress (σmin) at the extreme fiber?
- 1It will be equal to the sum of direct and bending stresses.
- 2It will remain purely compressive with the same magnitude as maximum stress.
- 3It will change sign (become tensile if direct stress is compressive).✓
- 4It will always be zero.
Correct answer
It will change sign (become tensile if direct stress is compressive).
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