A cantilever beam having a rectangular cross-section of width 60 mm and depth 100 mm, is
made of aluminum alloy. The material mechanical properties are: Young's modulus,
E = 73 GPa and ultimate stress, 𝜎u = 480 MPa. Assuming a factor of safety of 4, the
maximum bending moment (in kN-m) that can be applied on the beam is _____ (accurate to
one decimal place).
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2018 Q.51)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Structural Mechanics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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