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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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Böhm, Robert
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Multifunctionality Analysis of Structural Supercapacitors— A Reviewcitations
- 2023Fast generation of high-performance driveshafts: A digital approach to automated linked topology and design optimization
- 2023A Micromechanical Modeling Approach for the Estimation of the Weathering-Induced Degradation of Wind Turbine Bladescitations
- 2022Advanced carbon reinforced concrete technologies for façade elements of nearly zero-energy buildingscitations
- 2022Scale-up of aerogel manufacturing plant for industrial production
- 2022DMA of TPU films and the modelling of their viscoelastic properties for noise reduction in jet enginescitations
- 2022Life Cycle Assessment of Advanced Building Components towards NZEBscitations
- 2022An Experimental Approach for the Determination of the Mechanical Properties of Base-Excited Polymeric Specimens at Higher Frequency Modescitations
- 2020Determining the damage and failure behaviour of textile reinforced composites under combined in-plane and out-of-plane loadingcitations
- 2019Experimental and numerical determination of the local fiber volume content of unidirectional non-crimp fabrics with forming effectscitations
- 2018Phase-field modelling of fracture in heterogeneous materialscitations
- 2018Reinforcement Systems for Carbon Concrete Composites Based on Low-Cost Carbon Fiberscitations
- 2017Probabilistically based defect analysis and structure-property-relations in CF
- 2017Materialmodelle für textilverstärkte Kunststoffe
- 2017Influence of out-of-plane compression induced damage effects on the mechanical properties of C/C
- 2016Thermal treatment of carbon fibres up to 2175 K and impact on carbon fibre and related polymer composite properties
- 2016Theoretical and experimental approaches for the determination of process-structure-property-relations in carbon fibres
- 2016Strain rate dependent deformation and damage behaviour of textile-reinforced thermoplastic composites
- 2013Metallgussverbundbauteil
- 2012Computer tomography-aided non-destructive and destructive testing in composite engineering
- 2008Numerical and experimental deformation and failure analysis of 3D-textile reinforced lightweight structures under impact loads
- 2006Analiza wytężenia kompozytowych elementów rurociągów
- 2005Damage and impact simulation of textile-reinforced composites using FEA
- 2005Manufacture and multiaxial test of composite tube specimens with braided glass fiber reinforcementcitations
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article
An Experimental Approach for the Determination of the Mechanical Properties of Base-Excited Polymeric Specimens at Higher Frequency Modes
Abstract
Structures made of the thermoplastic polymer polyether ether ketone (PEEK) are widely used in dynamically-loaded applications due to their high-temperature resistance and high mechanical properties. To design these dynamic applications, in addition to the well-known stiffness and strength properties the vibration-damping properties at the given frequencies are required. Depending on the application, frequencies from a few hertz to the ultrasonic range are of interest here. To characterize the frequency-dependent behavior, an experimental approach was chosen and applied to a sample polymer PEEK. The test setup consists of a piezoelectrically driven base excitation of the polymeric specimen and the non-contact measurement of the velocity as well as the surface temperature. The beam’s bending vibrations were analyzed by means of the Timoshenko theory to determine the polymer’s storage modulus. The mechanical loss factor was calculated using the half-power bandwidth method. For PEEK and a considered frequency range of 1 kHz to 16 kHz, a storage modulus between 3.9 GPa and 4.2 GPa and a loss factor between 9 103 and 17 103 were determined. For the used experimental parameters, the resulting mechanical properties were not essentially influenced by the amplitude of excitation, the duration of excitation, or thermal degrad.ation due to self-heating, but rather slightly by the clamping force within the fixation area.