Print Email Facebook Twitter A cycle-by-cycle fatigue damage analysis of biaxial composite structures utilizing acoustic emission Title A cycle-by-cycle fatigue damage analysis of biaxial composite structures utilizing acoustic emission Author Zarouchas, D. (TU Delft Structural Integrity & Composites) Pascoe, J.A. (Imperial College London) Alderliesten, R.C. (TU Delft Structural Integrity & Composites) Date 2020 Abstract In the present work, a fatigue damage analysis of biaxial Carbon Fibre Reinforced Polymer (CFRP) specimens loaded at two different stress levels and a fatigue ratio, R=0.1, was performed. A cycle-by-cycle approach was used, utilizing results from Acoustic Emission (AE) measurements. The aim was to investigate the influence of the applied maximum stress level on the fatigue damage accumulation process and to examine the hypothesis that damage growth occurs in a portion of a load cycle. It was found that the damage process, for the specimens loaded in lower applied stress, was gradually increased where different damage mechanisms evolved slowly towards the end of life. On the other hand, for the specimens loaded in higher applied stress, the damage process accumulated evenly and several failure mechanisms occurred in parallel at a very early stage of the fatigue life. Finally, for both loading cases, a load threshold was found, below which, there was no damage growth, supporting the hypothesis of this work. Subject Acoustic emissionCycle-by-cycle analysisFatigue damage accumulation To reference this document use: http://resolver.tudelft.nl/uuid:61422501-0957-4136-a17f-fde3ee2e3638 Publisher Applied Mechanics Laboratory ISBN 9781510896932 Source ECCM 2018 - 18th European Conference on Composite Materials Event ECCM18: 18th European Conference on Composite Materials, 2018-06-24 → 2018-06-28, Athens, Greece Series ECCM 2018 - 18th European Conference on Composite Materials Part of collection Institutional Repository Document type conference paper Rights © 2020 D. Zarouchas, J.A. Pascoe, R.C. Alderliesten Files PDF 37ad6d6bdbb94432b599b7486 ... 2bad84.pdf 11.48 MB Close viewer /islandora/object/uuid:61422501-0957-4136-a17f-fde3ee2e3638/datastream/OBJ/view