Truck Hitch – Academic Project

Material Optimization for High-Performance Truck Hitch

Why did we do this project?
The objective was to design a lightweight, cost-effective trailer hitch system for heavy-duty trucks while maintaining high durability, strength, and environmental compliance. Given how crucial a hitch is to towing safety, the challenge was finding the right balance between mechanical performance, processability, and sustainability.

Materials / Tools / Techniques Used:
• Used material databases and Ashby charts to assess thermal, flexural, and fatigue performance
• Prioritized fatigue strength, weldability, and environmental durability as selection criteria
• Performed Eco-Audit analysis to evaluate CO₂ footprint, energy use, and recyclability
• Studied constraints involving load cycles, structural reliability, and mechanical tolerances

What did I learn?
I learned how to compare materials using multi-criteria selection and how real design decisions often require compromise between ideal properties and manufacturing constraints. We also explored how sustainability metrics (like embodied energy and recyclability) influence decision-making alongside traditional engineering metrics.

Results:
After evaluating various candidate materials, we selected an alloy that provided the best compromise between fatigue resistance, flexural performance, weldability, and environmental durability — while also achieving significant mass and cost reduction. Our final design met all functional constraints and passed the sustainability threshold, demonstrating how smart materials selection supports real-world performance and responsibility.

The full report and data sheets are available upon request. Please cite the work appropriately when used.