| 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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Sinapius, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (36/36 displayed)
- 2023Processing of 3-(Trimethoxysilyl)propyl Methacrylate (TMSPM) Functionalized Barium Titanate/Photopolymer Composites: Functionalization and Process Parameter Investigationcitations
- 2023The Guided Ultrasonic Wave Oscillation Phase Relation between the Surfaces of Plate-like Structures of Different Material Settingscitations
- 2023Investigations on Guided Ultrasonic Wave Dispersion Behavior in Fiber Metal Laminates Using Finite Element Eigenvalue Analysiscitations
- 2023Characterization of UV Light Curable Piezoelectric 0-0-3 Composites Filled with Lead-Free Ceramics and Conductive Nanoparticlescitations
- 2022Polyetherimide-Reinforced Smart Inlays for Bondline Surveillance in Composites
- 2022MEMS Vibrometer for Structural Health Monitoring Using Guided Ultrasonic Wavescitations
- 2022A Computational Geometric Parameter Optimization of the Thermomechanical Deicing Conceptcitations
- 2022Influence of a Flat Polyimide Inlay on the Propagation of Guided Ultrasonic Waves in a Narrow GFRP-Specimencitations
- 2022Piezoelectric Ceramic/Photopolymer Composites Curable with UV Light: Viscosity, Curing Depth, and Dielectric Propertiescitations
- 2021Reducing the Weakening Effect in Fibre-Reinforced Polymers Caused by Integrated Film Sensorscitations
- 2021Measurement of Two-Dimensional Electrical Potential Fields in CFRP using Four-Probe Resistance Scanscitations
- 2021Space-Filling Curve Resistor on Ultra-Thin Polyetherimide Foil for Strain Impervious Temperature Sensingcitations
- 2021Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Propertiescitations
- 2020Parameter study and experimental analysis of a thermo-mechanical de-icing conceptcitations
- 2020Adhesion of Multifunctional Substrates for Integrated Cure Monitoring Film Sensors to Carbon Fiber Reinforced Polymerscitations
- 2019Influence of fused deposition modeling process parameters on the transformation of 4D printed morphing structurescitations
- 2018Ultrasonic Wave Propagation in Aerospace Structures: Highly Efficient Simulation with a Minimal Model
- 2018Pulse Ultrasonic Cure Monitoring of the Pultrusion Processcitations
- 2016Degradation analysis of fibre-metal laminates under service conditions to predict their durability
- 2016Actuation mechanisms of carbon nanotube-based architectures
- 2016Damage Reconstruction in Complex Composite Structures using Lamb Waves
- 2016Experimental investigations on residual stresses during the fabrication of intrinsic CFRP-steel laminates
- 2016Structural integrated sensor and actuator systems for active flow controlcitations
- 2015ACTUATED TENSILE TESTING OF CNT BASED ARCHITECTURES
- 2015Lamb Wave Propagation in Complex Geometries - A Minimal Model Approach
- 2014Resonant approach for testing glass-fiber-reinforced composites in the VHCF-regime
- 2014MEMS Pressure Sensors Embedded into Fiber Composite Airfoilscitations
- 2014Mode Selective Actuator-Sensor System for Lamb Wave-Based Structural Health Monitoring
- 2014Investigating the VHCF of composite materials using new testing methods and a new fatigue damage model
- 2014Carbon Nanotube Strain Measurements via Tensile Testing
- 2014Active Flow Control via Piezo-Actuated Airfoils for High-Lift
- 2013Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 2: evaluation of stress detectioncitations
- 2013A Dynamical Actuated Lip at a Blowing Slot for Active High-Lift
- 2013Design of mode selective actuators for Lamb wave excitation in composite platescitations
- 2012Experimental investigation of the very high cycle fatigue behaviour of fibre reinforced composites
- 2012Characterization of mode selective actuator and sensor systems for Lamb wave excitation
Places of action
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document
Experimental investigation of the very high cycle fatigue behaviour of fibre reinforced composites
Abstract
Fibre reinforced composites became more and more important within the last decades. Thereby many different fields of application are covered, such as aircraft components, renewable energy products and automotive lightweight constructions. Parts, built out of composite materials, are designed to last for a long period of time nowadays, like e.g. blades of wind energy plants. Within this time span they suffer from a very high number of load cycles, often in the very high cycle regime past 10^8 cycles.This paper presents a new concept for testing composites until and beyond 10^8 cycles under alternating loads. Therefore a test-stand is being developed that uses an eigenmode of the specimen to apply high loads at the eigenfrequency. The amplitude of the load is controlled by varying the frequency and the level of the excitation. A high testing frequency is used to obtain 10^8 cycles within a reasonable time span. The temperature of the specimen is monitored to keep the autogenous heating of the specimen below a certain threshold to avoid thermal damages. Also the changes of the damped eigenfrequency and the amplification of the excitation are monitored. These states of the specimen are used to show connections between them and the growing defects in the specimen.The test-stand uses tubular specimen to avoid boundary effects and enable inner and outer cooling. The lay-up consists out of unidirectional fibre strands (rovings) that are aligned along the longitudinal direction of the tube. A special tool is being developed to produce these specimens in the process of pultrusion.Together with other partners of the priority programme 1466 started by the German Science Foundation DFG, the results of the tests will be used to build a sustainable basis for further modelling of the observed effects.