Hi everyone,
my question is about use of perforated aluminum honeycomb core. in my case, i am working with sandwich structure of honeycomb and carbon fiber prepreg bonded with epoxy adhesive film. will epoxy generate volatile during cure that will be trapped in honeycomb without perforation? or working with epoxy resin will not generate volatiles so non perforated honeycomb cores can be used?

Confusion is in between perforated and non perforated aluminum honeycomb cores used with epoxy in sandwich structure.

Thank You.

For most earthly applications a nonperforated honeycombs are OK.
Be carefull for high temperature or high altitude applications is highly recommended to use vented honeycombs because the air volume expansion closed in cells depends on temperature and could causes the internal delamination if the ambiente pressure is lower.