Designing for damage tolerance in aerospace: A hybrid material technology

This paper provides an overview of damage phenomena and mechanisms in hybrid aerospace structural materials subject to damage tolerance certification requirements. Because the hybrid technology originates from the objective to design for damage tolerance, the paper starts with illustrating recent developments in this material technology. Subsequently, the damage mechanisms that occur under quasi-static, fatigue and impact loading are discussed. Explanations of these phenomena are given with theories following fracture mechanics and energy balance approaches. To illustrate the top-down design approach these fundamental theories enable, potential future solutions are presented to design against these damages in order to improve damage tolerance. (C) 2014 Elsevier Ltd. All rights reserved.