*Bonding areas to be verified
Hood Panel
The fastening method alternatives for the hood panel are aimed to be permanent, efficient installation, and cost-effective.
Surrounding panels: Side panel (driver’s side and passenger side), headlights, bottom panel and bulkheads?
Epoxy Adhesive
Applied to fix it to the side panels and bulkheads
Flush-Mount Blind Rivets
Flush-Mount Rivet
Aluminum and corrosion-resistant
Sizes diameter (Thickness of material): 3/32” (0.062”-0.125”), 1/8” (0.092”-0.625”), 5/32” (0.062”-0.5”), 3/16” (0.188”-1”), 1/4” (0.188”-0.375”)
Cost: ~$9.40 / 100 pieces
...
https://www.mcmaster.com/rivets/aluminum-flush-mount-blind-rivets/
2. Flush-Mount on both sides Blind Rivet
Zinc-plated, and mild corrosion resistance
Sizes diameter (thickness of material): 1/8” (0.059”-0.177”)
Cost: ~$10 / 50 pieces
https://www.mcmaster.com/rivets/flush-mount-on-both-sides-blind-rivets/
Windshield Panel
The fastening methods alternatives for the windshield are aimed to be removable, efficient installation, and cost-effective.
Surrounding panels: Roof panel, hood, side panel (driver’s side and passenger side) and bulkheads?
Captive Panel Screw
Quarter-Turn Capacitive Panel Screw
Rivet-mount nut and Quarter turn screw
Zinc-plated steel and corrosion resistant
Cost: ~$3/each
https://www.mcmaster.com/quarter-turn-fasteners/rounded-head-quarter-turn-captive-panel-screws-with-clip-on-nut/ → Applicable to larger panel thickness range
(Quarter-Turn Fastener in-use is similar to: https://www.youtube.com/watch?v=EnNuQW5P9cs @15:18 min)
2. Twist-to-Lock Press-Fit Capacitive Panel
Pull knob and rotate 90 degrees to lock
Zinc-plated steel and corrosion resistant
Cost: ~5.42/each
Quick-Release Pins
Zinc-plated, mild corrosion resistance and Flat-head
Sizes diameter: 3/16”, 1/4”, 5/16”, 3/8”, 1/2”
Cost: ~$10 / 10 pieces
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https://www.mcmaster.com/pins/flat-head-quick-release-pins/
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Lead | Assignee | Reviewers | Status |
|---|---|---|---|
In Progress |
Problem
Problem Statement | Integration of the hood and windshield panels in a way that can withstand required normal driving conditions |
|---|---|
Goals | Strong and well-fitting integration to withstand driving conditions and support aerodynamics of the vehicle |
Constraints Regulations | Load case: 2G bump force |
Criteria | Safety factor of 6 |
Scope
Must have |
|
|---|---|
Nice to have | |
Not in scope |