Print Email Facebook Twitter Mode I fatigue delamination growth with fibre bridging in multidirectional composite laminates Title Mode I fatigue delamination growth with fibre bridging in multidirectional composite laminates Author Yao, Liaojun (Harbin Institute of Technology; Northwestern Polytechnical University) Sun, Yi (Harbin Institute of Technology) Guo, Licheng (Harbin Institute of Technology) Lyu, Xiuqi (Purdue University) Zhao, Meiying (Northwestern Polytechnical University) Jia, Liyong (AVIC the First Aircraft Institute) Alderliesten, R.C. (TU Delft Structural Integrity & Composites) Benedictus, R. (TU Delft Structural Integrity & Composites) Date 2018 Abstract Fatigue delamination in multidirectional composite laminates was experimentally investigated in present study. Both the Paris relation and a modified Paris relation (with a new similitude parameter) were employed to interpret fatigue delamination with significant fibre bridging. The results clearly demonstrated that fatigue delamination was independent of fibre bridging, if a reasonable similitude parameter was used in data reduction. As a result, a master resistance curve can be fitted to determine fatigue crack growth with different amounts of fibre bridging. The energy principles were subsequently used to provide physical interpretation on fatigue delamination. The results indicated the energy release for the same fatigue crack growth remained constant with fibre bridging. Bridging fibres in most cases just periodically stored and released strain energy under fatigue loading, but had little contribution to real energy release. The master resistance curve was finally applied to predict fatigue delamination with fibre bridging. Acceptable agreement between predictions and experiments was achieved, demonstrating the validation of the modified Paris relation in fibre-bridged fatigue delamination study. Subject DelaminationFatigueFibre bridgingMultidirectional composite laminates To reference this document use: http://resolver.tudelft.nl/uuid:ab7a5c5a-2d1b-423c-8860-a9b9f08cf270 DOI https://doi.org/10.1016/j.engfracmech.2017.11.013 Embargo date 2021-01-01 ISSN 0013-7944 Source Engineering Fracture Mechanics, 189, 221-231 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 Liaojun Yao, Yi Sun, Licheng Guo, Xiuqi Lyu, Meiying Zhao, Liyong Jia, R.C. Alderliesten, R. Benedictus Files PDF Manuscript_1.pdf 13.97 MB PDF 1_s2.0_S0013794417304137_main.pdf 2.48 MB Close viewer /islandora/object/uuid:ab7a5c5a-2d1b-423c-8860-a9b9f08cf270/datastream/OBJ1/view