Question

The effective width definition is used for

• A. Thin walled closed section subjected to bending
• B. Thin walled closed single section subjected to torque
• C. Thin walled multi cell closed section subjected to torque
• D. Sheet stringer panels

Hint:

Effective width reduces a complex structure to a simplified analysis area.

Answer 1

The Correct Option is D

The effective width definition in aerospace engineering is primarily used for sheet stringer panels. This concept is significant in the analysis of structures subjected to compression and/or bending. The effective width refers to the portion of a panel's width that effectively contributes to carrying the loads, considering potential buckling effects. In sheet stringer panels, this is crucial because:

• Load Distribution: It determines how loads are distributed across the stiffened panels, impacting design and safety.
• Buckling Resistance: Helps in assessing the buckling resistance of thin panels by providing a realistic measure of the load-carrying capacity.
• Design Optimization: Influences the optimization of panel designs to ensure material efficiency and weight reduction while maintaining structural integrity.

Thus, the effective width concept is a fundamental tool in the analysis and design of sheet stringer panels within the aerospace industry.