Dear Colleagues,

Composites are widely used in construction materials and products, such as those used in flight, space travel, automobiles, railway vehicles and ships, due to their good mechanical properties, fatigue resistance, etc. They are typical of fiber-reinforced composites, in which reinforcing fibers, such as glass fiber, carbon fiber or aramid fiber, are mixed with a matrix, such as epoxy or polyamide. It can have the desired strength, stiffness and mechanical properties depending on the fiber arrangement direction, layup, curing method and molding pressure. However, due to their non-homogeneity and anisotropy, there are various kinds of damage that they may suffer, such as matrix cracking, fiber breakage and interfacial delamination. The complex behavior of these types of damage is difficult to clearly understand at the level of the structure, and it causes a decrease in the strength and stiffness of the structure and affects the entire system; as such, research is required. In this Special Issue, we would like to introduce the latest research and technology on the damage that takes place on the structural level, considering the anisotropic properties of the composite materials.

Prof. Dr. Ki-Weon Kang
Dr. Ji-Won Jin
Dr. Yun-Jung Jang
Guest Editors

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• matrix cracking
• composite material
• composite structure
• damage
• fiber breakage
• interfacial delamination