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Prepare at least 3 adhesive joint specimens
Place onto tensile testing machine and load until failure
Record stress and calculate an average overlap shear strength
Review data to check any abnormalities in data, these may suggest poor specimen preparation
Surface Preparation:
For best performance, part surfaces should be clean and free of grease
Steel:
Trichloroethylene is a common degreasing agent for steel
Carbon fibre:
Trichloroethylene is a common degreasing agent for thermoset plastics
acetone, or methyl ethyl ketone is an alternative
Note: More information on surface preparation can be found here.