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- Teixeira de Freitas, S. (author) report 2005
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- Teixeira de Freitas, S. (author), Kolstein, M.H. (author) report 2009
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- Teixeira de Freitas, S. (author), Kolstein, M.H. (author) report 2009
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Teixeira de Freitas, S. (author)The PhD research is focused on the reinforcement of fatigue cracked orthotropic steel bridge decks (OBD) by adding a second steel plate to the existing deck. The main idea is to stiffen the existing deck plate, which will reduce the stresses at the fatigue sensitive details and extend the fatigue life of the orthotropic bridge decks. Two...doctoral thesis 2012
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Teixeira de Freitas, S. (author), Sinke, J. (author)This paper introduces a new type of peel tests dedicated to composite bonding: Composite Peel Tests. This test is inspired on the standard floating roller peel test widely used for metal bonding. The aim of this study is to investigate the potential of the Composite Peel Test to assess interface adhesion in composite bonded structures. To this...journal article 2015
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Müller, B. (author), Teixeira de Freitas, S. (author), Sinke, J. (author)The development of fiber metal laminates to multi-functional materials by embedding heater elements in the laminate extends their field of application. Fiber metal laminates with embedded heater elements are likely to be used for the de- and anti-icing of leading edges in aircraft as they combine structural and heating functions. Hence, those...conference paper 2015
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Müller, B. (author), Teixeira De Freitas, S. (author), Sinke, J. (author)The development of fiber metal laminates to multi-functional materials by embedding heater elements in the laminate extends their field of application. Fiber metal laminates with embedded heater elements are likely to be used for the de- and anti-icing of leading edges in aircraft as they combine structural and heating functions. Hence, those...conference paper 2015
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Teixeira De Freitas, S. (author), Sinke, J. (author)The purpose of this research is to study the effect of temperature on the static behavior of an hybrid structure consisting of adhesively bonded Fiber Metal Laminate skin to a composite stiffener. This hybrid structure was tested using stiffener pull-off tests, which is a typical set-up used to simulate the structural behaviour of full-scale...conference paper 2015
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Papadakis, V. (author), Teixeira De Freitas, S. (author), Colijn, R.M. (author), Goedhart, J.J. (author), Poulis, J.A. (author), Groves, R.M. (author)The adhesion process of bonded structures is a very sensitive manufacturing process, namely to surface contaminations. Nowadays, the adhesion quality of bonded joints can only be detected by destructive testing such as peel tests. But, for actual structures destructive testing of every bonded part is obviously not an option and industry is...conference paper 2016
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Severijns, C.P.A. (author), Teixeira De Freitas, S. (author), Poulis, J.A. (author)The autoclave/oven curing process is known to be the current manufacturing technique that provides the best quality of composite laminates and bonded joints. However, this process implies high acquisition cost and a large ecological footprint. Furthermore, with the current complete aeroplane composite fuselages, it is infeasible to use autoclave...conference paper 2016
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- Severijns, C.P.A. (author), Teixeira De Freitas, S. (author), Poulis, J.A. (author) poster 2016
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Rans, C.D. (author), Teixeira De Freitas, S. (author), van Campen, J.M.J.F. (author), Saunders-Smits, Gillian (author)Large classroom sizes are a reality university educators need to contend with, particularly in the first year of a given cohort within a degree programme. Activating and engaging students in these large classroom environments present numerous sets of challenges. These challenges are exacerbated by student learning development needs in the early...conference paper 2016
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de Barros, S. (author), Teixeira De Freitas, S. (author), Banea, M.D. (author), Budhe, S. (author), Arouche, M.M. (author), dos Santos, B.L. (author)In this work, peel tests were used to assess the adhesion quality between carbon fiber reinforced polymers (CFRP) and carbon steel plates. The tests were performed according to the ASTM standard of floating roller peel tests (D3167–97) with a new specimen layup. The layup and geometry of specimens was defined in order to have the CFRP as the...conference paper 2016
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Teixeira De Freitas, S. (author), Banea, M.D. (author), Budhe, S. (author), de Barros, S. (author)An experimental study has been carried out to assess the adhesion quality of composite-to-metal bonded joints under salt spray ageing conditions. The tests were performed according to the ASTM standard of floating roller peel tests with a new specimen layup. The layup and geometry of the specimen was defined in order to have the Carbon Fiber...journal article 2017
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Teixeira De Freitas, S. (author), Sinke, J. (author)The aim of this research is to analyse the failure of a Fiber Metal Laminate (FML) skin adhesively bonded to a Carbon Fiber Reinforced Polymer (CFRP) stiffener, under quasi-static loading at different environmental temperatures (−55 °C, Room Temperature RT and +100 °C) and under fatigue loading at RT. This bonded joint was tested using...journal article 2017
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Severijns, C. (author), Teixeira De Freitas, S. (author), Poulis, J.A. (author)The curing behaviour and the mechanical behaviour of susceptor-assisted induction-cured adhesively bonded joints has been investigated. Induction Heating (IH) was established by mixing Iron particles into a two component epoxy paste adhesive. The effect of different process parameters, such as particle content, coupling distance and coil...journal article 2017
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Muller, B. (author), Palardy, G. (author), Teixeira De Freitas, S. (author), Sinke, J. (author)Autoclave manufacturing of fibre metal laminates, such as GLARE, is an expensive process.Therefore, there is an increasing interest to find cost effective out-of-autoclave manufacturing processes without diminishing the laminate quality. The aim of this study is to evaluate the quality of fibre metal laminate...journal article 2017
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Teixeira De Freitas, S. (author), Kolstein, M.H. (author), Bijlaard, F.S.K. (author)Full-scale fatigue tests were performed on two retrofitted orthotropic bridge decks (OBDs). The retrofitting systems consist of adding a second steel plate on the top of the existing deck. The aim is to reduce the stresses at the fatigue-sensitive details and therefore extend the fatigue life of the OBD by stiffening the existing deck plate....journal article 2017
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Moreira Arouche, M. (author), Budhe, S. (author), Alves, L. A. (author), Teixeira De Freitas, S. (author), Banea, M.D. (author), de Barros, S. (author)In this work, an experimental study has been carried out to evaluate the effect of salt water condition on the long-term adhesion of composite-to-metal bonded joints using peel tests. A new test configuration is tested via fully and partially immersed specimens with 500 mm length. Fracture surfaces of non-aged samples exhibited a cohesive...journal article 2018
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Moreira Arouche, M. (author), Budhe, Sandip (author), Banea, Mariana D. (author), Teixeira De Freitas, S. (author), de Barros, Silvio (author)The aim of this study is to assess the interlaminar adhesion of carbon-epoxy laminates under salt water condition. Carbon-epoxy laminate specimens were immersed in a salt water tank for 60 days. Some specimens were then dried at<br/>room temperature for 280 days, until recovering their initial weight. Specimens were tested using the composite...journal article 2018