Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 90, Issue -, Pages 778-785Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2016.09.008
Keywords
Laminates; Fatigue; Delamination; Radiography
Funding
- Ministry of Defence Singapore - Nanyang Technological University (NTU) Joint Applied R&D Cooperation (JPP) Programme [MINDEF-NTU-JPP/12/01/02]
- NTU Interdisciplinary Graduate School Research Student Scholarship
Ask authors/readers for more resources
Carbon fibre reinforced polymer (CFRP) laminated composites have become attractive in the application of wind turbine blade structures. The cyclic load in the blades necessitates the investigation on the flexural fatigue behaviour of CFRP laminates. In this study, the flexural fatigue life of the [+45/-45/0](2s) CFRP laminates was determined and then analysed statistically. X-ray microtomography was conducted to quantitatively characterise the 3D fatigue damage. It was found that the fatigue life data can be well represented by the two-parameter Weibull distribution; the life can be reliably predicted as a function of applied deflections by the combined Weibull and Sigmodal models. The delamination at the interfaces in the 1st ply group is the major failure mode for the flexural fatigue damage in the CFRP laminate. The calculated delamination area is larger at the interfaces adjacent to the 0 ply. The delamination propagation mechanism is primarily matrix/fibre debonding and secondarily matrix cracking. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available