Which instability occurs when an I-beam's flange yields in compression?

💡 Explanation

Lateral-torsional buckling creates twisting because flange yielding reduces the beam's resistance. Reduced resistance allows buckling, therefore lateral-torsional buckling happens rather than web crippling or shear lag which resist local stress concentrations.

• Which error rate increase occurs when chromatic dispersion widens optical pulses?
• If steel forging dies experience thermal cycling, which failure process dominates?
• Which consequence arises in aircraft wing design when exceeding the critical Mach number?
• Which outcome occurs when a high-pressure refrigerant line experiences a sudden heat increase near an expansion valve?
• Which consequence results when an autonomous vehicle's LiDAR sensor experiences prolonged high-frequency vibration?
• Which outcome results when differential fuel vaporization occurs in multi-cylinder engines?