| 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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Sol, Hugo
Vrije Universiteit Brussel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2016The Ultrasonic Polar Scan for Composite Characterization and Damage Assessment: Past, Present and Futurecitations
- 2015Ultrasonic polar scan imaging of fatigued fiber reinforced composites
- 2015The quasi-harmonic ultrasonic polar scan for material characterization: Experiment and numerical modelingcitations
- 2015Calibration and correction procedure for quantitative out-of-plane shearographycitations
- 2015An ultrasonic strain gauge
- 2014Damage Signature of Fatigued Fabric Reinforced Plastics in the Pulsed Ultrasonic Polar Scan
- 2014Detection and Localization of Delaminations in Thin Carbon Fiber Reinforced Composites with the Ultrasonic Polar Scancitations
- 2014Detection and Localization of Delaminations in Thin Carbon Fiber Reinforced Composites with the Ultrasonic Polar Scan
- 2014A novel ultrasonic strain gauge for single-sided measurement of a local 3D strain field
- 2014A novel ultrasonic strain gauge for single-sided measurement of a local 3D strain fieldcitations
- 2014An Ultrasonic Strain Gauge
- 2014Pitfalls in the experimental recording of ultrasonic (backscatter) polar scans for material characterizationcitations
- 2014Extraction of bulk wave characteristics from a pulsed ultrasonic polar scancitations
- 2014Ultrasonic Characterizaion of Subsurface 2D Corrugationcitations
- 2014Identification of the elastic properties of isotropic and orthotropic thin-plate materials with the pulsed ultrasonic polar scan
- 2014Nondestructive damage assessment in fiber reinforced composites with the pulsed ultrasonic polar scancitations
- 2014The pulsed ultrasonic backscatter polar scan and its applications for NDT and material characterization
- 2014Errors in shearography measurements due to the creep of the PZT shearing actuatorcitations
- 2014Identification of the plastic behavior of aluminum plates under free air explosions using inverse methods and full-field measurements
- 2012'Gradient' polar scan technique for material characterizationcitations
- 2012Polar scan technique for material characterization and identification of new operating regimes
- 2010Reproducing the experimental pull-out and shear strength of clinched sheet metal connections using FEAcitations
- 2010Resonant-based identification of the Poisson's ratio of orthotropic materials
- 2010Determination of the flow stress and contact friction of sheet metal in a multi-layered upsetting test
- 2010Resonance Fatigue Testing of Test Beams Made of Composite Material
- 2009A reference specimen for permeability measurements of fibrous reinforcements for RTM
- 2008Identification of material parameters to predict Single Point Incremental Forming forcescitations
- 2007Experimental and theoretical study of the damage onset in biaxial cruciform specimens under static and hysteresis loading
- 2006Stereolithographic Specimen to Calibrate Permeability Measurements for RTM Flow Simulations
- 2004Study of nesting induced scatter of permeability values in layered reinforcement fabrics
- 2002New set-up for measurement of permeability properties of fibrous reinforcements for RTM
Places of action
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document
Experimental and theoretical study of the damage onset in biaxial cruciform specimens under static and hysteresis loading
Abstract
In this paper an attempt is made to prove that the load level at which failure is initiated in a biaxial loaded specimen is very close to the actual failure load. The digital image correlation method and the finite element method, in combination with the ultrasound phased array technique, are used to get a better understanding in the onset of the failure mechanisms in fibre reinforced plastics (FRP) such as glass reinforced epoxy. It is shown that the failure mechanisms of these FRP, with a specific stacking sequence that is widely used in the windturbine industry, start in a very late stage, approximately around 80% of the failure load, regardless of the fact that the load distribution is applied in one or two directions. No large difference is observed in the damage initiation load for a linear increase of the applied load compared with a hysteresis loading approach. Through implementation of the problem in a finite element model, it is shown that the digital image correlation results correspond very well with the numerically found strain fields. The ultrasound scans made of the central milled out zone do not expose large differences with a scan of an unloaded specimen. This confirms the conclusion of the late onset of damage during a loading cycle and leads in this way to very sudden failure of the specimen in the last 20% of the failure load.