US Patent 11181135 Composite material assembly

Provided is a composite material assembly (100) includes: a first composite material member (1) in which a first hole (51) is formed, a second composite material member (2) in which a second hole (52) is formed, and a fastener (3) that is to be inserted through the first hole (51) and second hole (52) to thereby connect the first composite material member (1) to the second composite material member (2). A first chamfered section (51C) is formed on at least one of both ends of the first hole (51), and a second chamfered section (52C) is formed on at least one of both ends of the second hole (52).