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- Ruiz-Ripoll, M.L. (author), Schut, H. (author), Benedictus, R. (author), Van der Zwaag, S. (author), Alderliesten, R.C. (author) conference paper 2011
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Ruiz-Ripoll, M.L. (author), Schut, H. (author), Van Dijk, N.H. (author), Alderliesten, R.C. (author), Van der Zwaag, S. (author), Benedictus, R. (author)We have investigated the evolution of damage during fatigue loading in Al–Cu 2024-T3 alloys using the positron annihilation Doppler Broadening (DB) technique. This technique enables us to monitor in a non destructive way, at the atomic and vacancy level, the formation of deformation defects and their interaction with solute atoms at selected...conference paper 2011
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Amaral, L. (author), Yao, L. (author), Alderliesten, R.C. (author), Benedictus, R. (author)This work proposes to treat quasi-static mode I delamination growth of CFRP as a low-cycle fatigue process. To this end, mode I quasi-static and fatigue delamination tests were performed. An average physical Strain Energy Release Rate (SERR), derived from an energy balance, is used to characterize the energy released in crack extension. The...conference paper 2015
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Yao, L. (author), Alderliesten, R.C. (author), Benedictus, R. (author)This paper provides a study on mode I fatigue delamination growth in composite laminates using energy principles. Experimental data has been obtained from fatigue tests conducted on Double Cantilever Beam (DCB) specimens at various stress ratios. A concept of fatigue fracture toughness is proposed to interpret the stress ratio effect in crack...conference paper 2015
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Bhangale, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author), Bersee, H.E.N. (author)Prediction models for fatigue in engineering applications are developed within a fatigue analysis framework, deliberately selected in some cases, but mostly chosen without substantiation. The proposition of this paper is that selecting the most appropriate framework can only be done with the knowledge and a complete overview of existing...conference paper 2022
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)Measurement of the energy dissipation during fatigue crack growth is used as a technique to gain more insight into the physics of the crack growth process. It is shown that the amount of energy dissipation required per unit of crack growth is determined by Gmax, whereas the total amount of energy available for crack growth in a single cycle is...conference paper 2016
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Ruiz Ripoll, ML (author), Schut, H. (author), Alderliesten, R.C. (author), van der Zwaag, S. (author), Benedictus, R. (author)We have investigated the evolution of damage during fatigue loading in Al-Cu 2024-T3 alloys using the positron annihilation Doppler Broadening (DB) technique. This technique enables us to monitor in a non destructive way, at the atomic and vacancy level, the formation of deformation defects and their interaction with solute atoms at selected...conference paper 2010
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Morinière, F.D. (author), Alderliesten, R.C. (author), Tooski, M.Y. (author), Benedictus, R. (author)An experimental study was performed on the repeated low-velocity impact behaviour of GLARE. Damage evolution in the material constituents was characterised with successive number of impacts. Records were correlated with visual inspection, ultrasound C-scan and chemical etching. The stiffness of the plate varied when cumulating the number of...journal article 2012
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)Current prediction methods for growth of disbonds under fatigue loading are generally based on a correlation with either the maximum strain energy release rate (SERR) or the SERR range. This paper highlights some issues with this approach. In particular, it is argued that the maximum SERR or the SERR range alone do not give sufficient...journal article 2014
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Morinière, F.D. (author), Alderliesten, R.C. (author), Benedictus, R. (author)An analytical and experimental investigation into the low-velocity behaviour of GLARE Fibre-Metal Laminates (FMLs) has been performed. A quasi-static approach was developed to estimate the perforation energy absorbed between the constituents of GLARE. The analysis considered contact area increase during perforation and strain rate effect on...journal article 2012
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Sadighi, M. (author), Pärnänen, T. (author), Alderliesten, R.C. (author), Sayeaftabi, M. (author), Benedictus, R. (author)The impact response of fiber metal laminates (FMLs), has been investigated with experiments and numerical simulations, which is reported in this article. Low-velocity impacts were carried out to study the effects of metal type and thickness within FMLs. Glare5-3/2 laminates with two aluminum layer thicknesses and a similar FML containing...journal article 2012
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)The concept of relating fatigue disbond growth to the strain energy release rate (SERR) is critically examined. It is highlighted that the common practise of using only the maximum SERR or only the SERR range is insufficient to correctly characterize a load cycle. As crack growth requires energy, it is argued that growth should be related to the...journal article 2014
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)An overview is given of the development of methods for the prediction of fatigue driven delamination growth over the past 40 years. Four categories of methods are identified: stress/strain-based models, fracture mechanics based models, cohesive-zone models, and models using the extended finite element method. It is highlighted that most models...journal article 2013
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)The available models for the prediction of fatigue crack growth in adhesive bonds rely on the similitude principle. In most cases, one of three similitude parameters based on the strain energy release rate (SERR) is used; i.e. G<sub>max</sub>, (Δ√G)<sup>2</sup>, or ΔG. In all cases it is usually observed that keeping the similitude parameter...journal article 2016
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van Kuijk, J.J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)An important figure was omitted from this article, as Fig. 11 was repeated in Fig. 12. The image below shows the correct version of Fig. 12 that should have appeared in the article. [Figure presented]journal article 2021
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van Kuijk, J.J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)The substantiation of fatigue crack closure corrections is disputed, based on the closure stress definition. The ΔK<sub>eff</sub> equation lacks a physical explanation. An inconsistency is observed between the opening stress S<sub>op<sub>phen</sub></sub> as used by this equation and the physical opening stress S<sub>op<sub>phys</sub></sub>....journal article 2021
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van Kuijk, J.J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)To improve resolution of in-situ measurement of crack closure and opening in fatigue, potential drop (PD) measurement technique has been further developed to measure thousands of times through each load cycle with high precision. The results are interpreted with physical phenomena like strain, Poisson's effect, piezo-resistivity, plasticity,...journal article 2021
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Quan, D. (author), Alderliesten, R.C. (author), Dransfeld, C.A. (author), Tsakoniatis, Ioannis (author), Teixeira De Freitas, S. (author), Scarselli, Gennaro (author), Murphy, Neal (author), Ivanković, Alojz (author), Benedictus, R. (author)A high-power UV-irradiation technique was proposed for the surface treatment of PPS and PEEK composites, aiming to achieve good adhesion with epoxy adhesives. The composite substrates were rapidly UV-irradiated for a duration of between 2–30s, and then bonded using an aerospace film adhesive to produce joints. Tensile lap-shear strength and...journal article 2020
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Yao, L. (author), Sun, Y. (author), Alderliesten, R.C. (author), Benedictus, R. (author), Zhao, M (author)Fibre bridging can significantly enhance delamination resistance making the use of a single Paris resistance curve to determine fatigue crack growth insufficient. An empirical Paris-type relation has been developed in a previous study to take fibre bridging into account in fatigue delamination growth. This relation was developed by correlating...journal article 2017
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Yao, L. (author), Sun, Y. (author), Zhao, M (author), Alderliesten, R.C. (author), Benedictus, R. (author)This paper aims to investigate stress ratio effect on fibre bridging significance in mode I fatigue delamination growth of composite materials. Fatigue resistance curves (R-curves) of different stress ratios are determined and compared with the quasi-static R-curve. The fatigue R-curve of a high stress ratio is similar to the quasi-static...journal article 2017
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