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CF to Aluminum Bond Test (2nd Iteration)

CF to Aluminum Bond Test (2nd Iteration)

In the 1st iteration (Tensile test), we suffered from adhesive failure (skill issue) at low pullout force. In this second test, we will be generalizing the test process a little more. For the purpose of time, money, and ease – we will use a lap shear strength test of a carbon fiber and aluminum strip to get the basics down first.

We will also need to improve the design and manufacturing process of our aluminum inserts. In the compressive test, the flange of the insert sheared off.

Standard Test Method for Lap Shear Strength of Sealants Documentation:

Materials Needed

  • Carbon Fiber Coupon (something x something inches)

  • Aluminum Coupon (something x something x something inches)

  • Loctite EA-120HP

  • Acetone

  • Isopropyl Alcohol (IPA)

 

Blockers

Layup CF
Cut CF coupons
Buy aluminum plate from McMaster
Machine plate
Talk to professor to use Instron

 

Timeline

yes

 

Methodology

  1. Cut CF

  2. Cut Aluminum

  3. Mix epoxy

  4. Bond coupons

  5. Wait for epoxy to dry (poke test)

  6. Set up Instron and clamps

  7. record data

  8. repeat at least 8 times

 

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