| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sørensen, Bent F.
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (51/51 displayed)
- 2023J integral strain-curvature approach for multilayer fracture specimens with unknown thickness and stiffness of layerscitations
- 2022A coupled mix-mode cohesive law based on a cylindrical potential functioncitations
- 2022Propagation of tunnelling cracks in composite materials under strain and force-controlled cyclic loadingcitations
- 2021Scanning electron microscopy datasets for local fibre volume fraction determination in non-crimp glass-fibre reinforced compositescitations
- 2021Fatigue Crack Growth Rate at Material and Geometry Transitions in Glass-Epoxy Compositescitations
- 2021Approach for analysing off-axis tunnelling cracks in biaxially loaded laminatescitations
- 2020Experimental Investigation of the Damage at the Tip of Tunnelling Crack in Glass Fibre Composites
- 2020Tunneling cracks in arbitrary oriented off-axis laminacitations
- 2019An element test specimen with ply drops to study fatigue crack growth rates at geometry transitions
- 2019The critical damage state controlling the tension-tension fatigue life of unidirectional fibre compositescitations
- 2019Maximise the fracture resistance of glass fibre composites by controlled large scale fibre bridging
- 2019Maximise the fracture resistance of glass fibre composites by controlled large scale fibre bridging
- 2019Micromechanical model for prediction of the fatigue limit for unidirectional fibre compositescitations
- 2018Enhancement of delamination fracture resistance of composites by fiber bridging and mulitple cracks
- 2018Discontinuous cohesive laws for modelling mixed-mode delamination
- 2018The effect of buffer-layer on the steady-state energy release rate of a tunneling crack in a wind turbine blade jointcitations
- 2018Fracture Mechanics Analysis of Composites with Ply-Drops - Measurement of Delamination Fatigue Crack Growth Rate
- 2018Fatigue life limit prediction of unidirectional composites based on micromechanics
- 2018Prediction of fatigue limit for unidirectional carbon fibre/epoxy compositescitations
- 2018Preface for the 39th Risø Symposium Proceedings, IOP publication
- 2018In situ identification of the failure mechanisms in self-reinforced poly(lactic acid) composites
- 2018In situ identification of the failure mechanisms in self-reinforced poly(lactic acid) composites
- 2017Interfaces between a fibre and its matrixcitations
- 2016Determination of mode-I cohesive strength for interfacescitations
- 2016Experimental determination of the micro-scale strength and stress-strain relation of an epoxy resincitations
- 2016Enhancement of fracture resistance of composite laminates by the creation of multiple delaminations
- 2015The application of J integral to measure cohesive laws in materials undergoing large scale yielding
- 2015Effect of fiber positioning on mixed-mode fracture of interfacial debonding in compositescitations
- 2015Effect of fiber positioning on mixed-mode fracture of interfacial debonding in compositescitations
- 2014Damage evolution under cyclic multiaxial stress state: A comparative analysis between glass/epoxy laminates and tubescitations
- 2014Effect of Processing Conditions on Fracture Resistance and Cohesive Laws of Binderfree All-Cellulose Compositescitations
- 2014Mixed Mode cohesive law with interface dilatationcitations
- 2013Experimental and numerical study of the micro-mechanical failure in composites
- 2013Experimental and numerical study of the micro-mechanical failure in composites
- 2013Bonding characteristics of glass seal/metallic interconnect for SOFC applications: Comparative study on chemical and mechanical properties of the interface
- 2013Bonding characteristics of glass seal/metallic interconnect for SOFC applications: Comparative study on chemical and mechanical properties of the interface
- 2013Experiments and Analyses for Determining Fibre/Matrix Interface Parameters – Understanding Debonding Problems
- 2013Experiments and Analyses for Determining Fibre/Matrix Interface Parameters – Understanding Debonding Problems
- 2011Fracture resistance curves and toughening mechanisms in polymer based dental compositescitations
- 2011Shrinkage reduction of dental composites by addition of expandable zirconia fillercitations
- 2010Cohesive laws for assessment of materials failure: Theory, experimental methods and application
- 2009Effects of Heat-treatments on the Mechanical Strength of Coated YSZ: An Experimental Assessmentcitations
- 2008A modified DCB sandwich specimen for measuring mixed-mode cohesive lawscitations
- 2008Fundamentals for remote condition monitoring of offshore wind turbines
- 2007Plasma Polymerized Thin Films of Maleic Anhydride and 1,2-methylenedioxybenzene for Improving Adhesion to Carbon Surfacescitations
- 2007A J Integral Approach for Measuring Cohesive Laws Using a Modified DCB Sandwich Specimen
- 2006Measuring Cohesive Laws for Interfaces in Sandwich Structures
- 2006Controlling Interface Adhesion and Fracture Properties in Composite Materials by Plasma Polymerisation
- 2006Controlling Interface Adhesion and Fracture Properties in Composite Materials by Plasma Polymerisation
- 2006Detecting and identifying damage in sandwich polymer composite by using acoustic emission
- 2001Crack Growth along Interfaces in Porous Ceramic Layerscitations
Places of action
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conferencepaper
Fatigue life limit prediction of unidirectional composites based on micromechanics
Abstract
High performance polymer fibre composites (with long aligned fibres) are widely used in structural applications such as in wind turbine rotor blades. These structures are designed to operate for a long time e.g. over 20 years of service life for a wind turbine rotor blade. Fatigue loading and the associated material degradation are thus important parameters in the development of larger and more efficient composite structures.<br/>The present work aims to examine if a fatigue limit exists for unidirectional fibre composite materials. The existence or not of a fatigue limit has consequences on structural design rules of composite structures and on composite materials developments.<br/>To answer the question of existence or not of a fatigue limit, a theoretical micromechanical model is developed. The fatigue limit is defined as the condition that a fibre failure does not lead to progressive failure of neighbouring fibres. In the model, the fibre/matrix interface is described by an interface fracture energy and a frictional sliding shear stress. The fibre strength is assumed to follow a Weibull distribution. The fatigue damage is in the form of cyclic debond crack growth, decreasing frictional sliding stress and fibre failure.<br/>The developed mode is used to predict the fatigue limit of unidirectional glass fibre composites. The models predictions are compared with available high cyclic fatigue experimental data from literature and a good agreement is found.<br/>Next the effects of the microscale parameters such as fibre volume fraction, interface fracture energy and interface fictional sliding stress on the fatigue limit are examined.