José Vicente Calvo , Norberto Feito , María Henar Miguélez , Eugenio Giner
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Abstract
In this work, we estimate the fatigue life of drilled Carbon Fiber Reinforced Polymer (CFRP) laminates making use of the temperature evolution of the component. As the self-heating effect due to cyclic loading causes a temperature change in the initial stages of the loading, the slope of the temperature variation ΔT versus the number of cycles can be used to estimate the remaining life. We have validated the applicability of the procedure for drilled laminates under different cutting conditions, and for drilled Ti-CFRP stacks. Infrared thermography was used to obtain the temperature variation during cycling loading. The results proved that the obtained adjusted model can effectively estimate the fatigue life of CFRP laminates with delamination damage or thermal damage with an error of 15%, proving the usefulness of this methodology for drilled and stacked laminates.
期刊介绍：
Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.
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