Topic: Mechanics of Materials
The most applicable failure theory for metals like aluminium is
- A. Maximum principal stress theory
- B. Maximum principal strain theory
- C. Total strain energy theory
- D. Maximum distortion energy theory
Answer: D. Maximum distortion energy theory
Explanation: The most applicable failure theory for ductile materials is the Maximum Distortion Energy Theory (von Mises). For brittle materials, the Maximum Principal Stress Theory is used.