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Wing Spar Structural Analysis and Material Optimization

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Nick Glenn

Project Timeline

Sep 2025 - Sep-2025

OVERVIEW

In this mini project, I analyzed the structural behavior of wing spar concepts to understand how geometry and material choice influence deflection, stress, and overall design feasibility. I modeled two cross-sections: an I-beam and a hollow square, and evaluated each using steel, 2024 aluminum, and titanium alloys. My work included building the CAD models, setting up the FEA simulations, and adjusting dimensions to meet the required deflection target. I began with a simplified uniform lift model and later incorporated a more realistic triangular distributed load with a concentrated engine weight, which revealed how complex loading drives significantly different design decisions. Although brief, this project further solidified my understanding of real-world engineering applications and the importance of material selection, mass, and manufacturability.

HighlightS

Built and parameterized CAD models for two complete wing spar geometries.


Ran FEA simulations across three materials and iteratively tuned dimensions to reach the 3–3.8 in deflection target.


Modeled both simplified and realistic aircraft loading, including a triangular lift distribution and engine point load.


Compared structural efficiency, weight, manufacturability, and cost for each design.


Determined that a titanium I-beam provided the strongest performance under realistic loading despite higher cost.

SKILLS

FEA SimulationCAD ModelingStructural & Material AnalysisEngineering Trade Study DevelopmentTechnical Communication

SUPPORTING MATERIALS

Additional Details

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