(…)Why bolt and why bond?
Fasteners are used in composite primary structures today due to certification requirements. These were outlined in a 2013 SAMPE (May 6-9, Long Beach, Calif.) presentation titled “Efficient Certification of Bonded Primary Structures,” by Kay Blohowiak, a technical fellow working in Composite Bonding Processes for Boeing Research & Technology (Seattle, Wash.), and her co-authors. For composite structures on commercial aircraft, the most often cited of these documents is AC 20-107B “Composite Aircraft Structure,” issued jointly by the Federal Aviation Admin. (FAA, Washington D.C.) (…)
via Certification of bonded composite primary structures : MoldMaking Technology.