Print Email Facebook Twitter Using acoustic emission to understand fatigue crack growth within a single load cycle Title Using acoustic emission to understand fatigue crack growth within a single load cycle Author Pascoe, J.A. (TU Delft Structural Integrity & Composites) Zarouchas, D. (TU Delft Structural Integrity & Composites) Alderliesten, R.C. (TU Delft Structural Integrity & Composites) Benedictus, R. (TU Delft Structural Integrity & Composites) Date 2018-05-01 Abstract Current methods for prediction of fatigue crack growth are based on empirical correlations which do not take the crack growth behaviour within a single cycle into account. To improve these prediction methods, more understanding of the physical mechanisms of crack growth is required. In this research the acoustic emission technique was used to investigate the crack growth behaviour during a single fatigue cycle. It was found that crack growth can potentially occur both during loading and unloading, but only while the strain energy release rate is above a crack growth (CG) threshold value. The results suggest this CG threshold value is the same in both quasi-static and fatigue loading. Further work is necessary to fully understand the link between the received acoustic emission signals and the actual crack growth processes. Nevertheless, the paper shows the potential of acoustic emission to provide more insight into the physics of crack growth. Subject Acoustic emissionAdhesive bondingCrack growthFatigue To reference this document use: http://resolver.tudelft.nl/uuid:9f654671-a81a-4a4d-a7f8-b1bae4e7d73b DOI https://doi.org/10.1016/j.engfracmech.2018.03.012 Embargo date 2018-12-01 ISSN 0013-7944 Source Engineering Fracture Mechanics, 194, 281-300 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 J.A. Pascoe, D. Zarouchas, R.C. Alderliesten, R. Benedictus Files PDF 1_s2.0_S0013794417306847_main.pdf 1.93 MB Close viewer /islandora/object/uuid:9f654671-a81a-4a4d-a7f8-b1bae4e7d73b/datastream/OBJ/view