Subjected to compressive load,stiffener injury often causes serious failure of stiffened composite panels. In consideration of stiffener-skin debonding,delamination in web and damage to upper flange,corresponding repair programs were designed and necessary specimens were manufactured. In order to ensure a uniform compressive load during experiment,test fixture for composite stiffened panel was designed and fabricated,containing two slots to fix the stiffened panel and four guides to ensure the vertical load...