hi, 
 i am trying to attach hinges to carbon composite for Double Cantilever Beam specimen using adhesive. lot of them are failing. Please suggest any alternate ways

Hi Suman,

As Fasta suggests, a Methacrylate will give you a better bond as unlike an epoxy or polyurethane adhesive, a Methacrylate has an etching property and as such really bites into the bonding surfaces; they;re compatible with both the metal and the composite side of the bond.

We have a Methacrylate at Easy Composites (VM100B - https://www.easycomposites.co.uk/vm100-black-methyl-methacrylate-adhesive ) but as it is classifed as a Dangerous Good for shipping, there are some restriction on where we can send it.