Investigation of the Influence of Delamination Characteristics on the Mechanical Properties of CFRP

Carbon fiber reinforced polymer (CFRP) composites have been widely used in aviation, aerospace and other fields due to their excellent mechanical properties. However, it is difficult observe delamination damage during the manufacturing, machining, assembling as well transportation of composite materials, especially for joint structures. The around hole one important factors service performance. In this paper, a model laminate with established by combining numerical simulation methods experimental investigation CFRP parts defects. Then, influence different characteristics (diameter, position shape) on properties failure process under loading conditions were investigated, results verified through validation. By comparing results, can be concluded that all three great compressive static load strength fatigue life laminate, form expansion stress distribution cloud diagram each feature are also studied, investigate mechanism type laminate. Finally, ANOVA was analyze effects compression laminates.