Delamination in Composite Materials: Causes, Detection, and Mitigation Strategies

Submission Deadline: 30 September 2025 View: 326 Submit to Special Issue

Guest Editors

Prof. Dr. Uğur KÖKLÜ

Email: ugurkoklu@kmu.edu.tr

Affiliation: Department of Mechanical Engineering, Karamanoglu Mehmetbey University, Karaman, Türkiye

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Research Interests: Mechanical Engineering, Manufacturing Technologies, Material Design and Behavior, Fiber reinforced plastic composite materials, Machining, Cryogenic

Prof. Dr. Salah AMROUNE

Email: salah.amroune@univ-msila.dz

Affiliation:  Materials and Structural Mechanics Laboratory (LMMS).University of M'sila. Algeria

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Research Interests: Mechanical engineering, Material development and mechanical properties, fiber-reinforced bio composites

Dr. Gururaj Bolar

Email: gururaj.bolar@manipal.edu

Affiliation: Department of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India

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Research Interests: Conventional and unconventional machining, advanced composite materials, metal additive manufacturing, tool and coating tribology, and finite element modeling

Summary

Delamination of layers is a serious concern when dealing with composite materials. Composite materials exhibit delamination due to the failure of adhesion bonding between the composite layers. Delamination can occur due to the thermal expansion mismatch between the fiber and matrix and incomplete curing during manufacturing. Delamination can also result from excessive mechanical loads (fatigue, shear, and impact) that can initiate crack formation, leading to delamination. Composite materials are exposed to the atmosphere during their lifetime, leading to water absorption and laminar separation. Delamination in the composite can reduce the strength and stiffness of the material, leading to progressive structural failure. Therefore, detecting and mitigating the delamination process in composite site material becomes essential. Understanding the causes of delamination can mitigate the risks associated with the delamination, thus ensuring the safety and reliability of composite structures. The special issue explores the delamination process observed in laminated composites and the means to mitigate it. The novel methods to detect and characterize delamination are also welcome.

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