Print Email Facebook Twitter Progressive Damage Accumulation Process of CFRP Cross-Ply Laminates during the Early Fatigue Life Title Progressive Damage Accumulation Process of CFRP Cross-Ply Laminates during the Early Fatigue Life Author Li, X. (TU Delft Structural Integrity & Composites) Benedictus, R. (TU Delft Structural Integrity & Composites) Zarouchas, D. (TU Delft Structural Integrity & Composites) Contributor Vassilopoulos, Anastasios P. (editor) Michaud, Véronique (editor) Date 2022 Abstract The present work aims at investigating the progressive damage accumulation process of CFRP laminates in an interactive scheme, with a special focus on the early fatigue life where mainly matrix-dominant damage accumulates and stiffness degrades significantly. An in-situ damage monitoring system, containing edge observation, digital image correlation and acoustic emission techniques, was established to characterize and quantify the accumulation of transverse cracks and delamination. Two cross-ply configurations ([0/902]s and [02/904]s) and different stress levels were involved in the experimental campaign. Dependent crack ratio was proposed to reflect the interaction among transverse cracks, and saturated crack density was used to represent the interactive level between transverse cracks and delamination. Results showed that generation of transverse cracks and their interaction govern the early fatigue damage accumulation of the [0/902]s laminates, while not only the interaction among cracks but also the interaction between both damage mechanisms were observed for the [02/904]s laminates. Subject DelaminationFatigue damageStiffness degradationTransverse crack To reference this document use: http://resolver.tudelft.nl/uuid:a5bf48ea-6c08-46f6-abc8-4c8a02805431 Publisher EPFL Lausanne, Composite Construction Laboratory, Lausanne ISBN 978-2-9701614-0-0 Source Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 3 – Characterization Event 20th European Conference on Composite Materials, 2022-06-26 → 2022-06-30, Lausanne, Switzerland Part of collection Institutional Repository Document type conference paper Rights © 2022 X. Li, R. Benedictus, D. Zarouchas Files PDF Xi_Li_ECCM20.pdf 626.41 KB Close viewer /islandora/object/uuid:a5bf48ea-6c08-46f6-abc8-4c8a02805431/datastream/OBJ/view