On Jan 19, 9:03 am, Jon Anderson wrote:
I am working on product that is comprised of aluminum
sleeves affixed to carbon fiber tubes with structural
adhesives. We have tensile tests that show we have more than
enough strength for normal use. However, I am looking at the
200 degree service limit for the adhesive and wondering just
how hot this part might get say, sitting in the sun out in
Phoenix in the middle of summer.....
It's winter here in Calif. so hard to collect data. I might
ship some parts off to a friend in OZ to collect data as
it's summer there. But thought I'd ask if anyone here might
have done any testing of this nature and know.

I have approx 3/4"dia by 2" long aluminum, bonded to 1/2"
carbon fiber. This resides near an engine, so worst case
would likely be a hard run through the desert, then being
parked with this part in direct sunlight while taking in
heat from the engine.

Once I have an good idea what temps we might see, I can
specify in the next tensile test that the parts be heated to
this temp before being pulled.

Thanks,

Jon

May I assume the aluminum sleeve is part of the mounting system. If
so, will it move the heat to a cooler piece of metal, or will it
conduct heat from something toward the carbon tube?

Since you mentioned desert, how does your adhesive and carbon tubes
react to UV? That is are real problem in the high desert.

Paul