An Investigation of Damage and Residual Strength of Aircraft Composite Structure Caused by Foreign Object Debris Impact

Fiber-reinforced polymer composite components are required to be resilient against foreign object damage caused by debris impact. The FOD impact induced damage is a probable threat in the composite components of aircraft. The induced damage influences the compressive strength of laminate and thus load transfer capability. The adequacy of structural components for design and repair can be assessed based on investigation of probable FOD impact induced damage. This paper presents an investigation of FOD impact induced damage in the composite component of aircraft. Cohesive zone model is used to predict delamination. Impact induced damage variation at different impact energies is discussed.