Big ; Some random thoughts . With prepregs, temperature and humidity are critical during the fabrication stage also. The larger the building, the harder it is to maintain control. Some materials are working time critical, if has been kept in cool storage, does it need x time in ambient temp before usage? Then there is the curing process(es).
Is the delamination area single skin, honeycomb or a secondary bond area ; we don't know ( yet ) whether manufacture or design is the cause, but size can present
challenges on large composite component. Protocols should be adhered to but commercial considerations would add pressure to continue in the event of an
" oops ". The $$$ involved are frightening..................
[quote] boguing
Not much concern on smaller structures - where the person with the glue/heat/vacuum knows what they are doing in a highly regulated industry.
[quote]
Very good summation.