| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Lévy, Arthur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Microstructural analysis of unidirectional composites: a comparison of data reduction schemes
- 2024Carbon fibre paek prepreg micrograph analysis using weka deep learning methodology
- 2023Welding of high-performance thermoplastics and composites: from material properties tomechanical strength of assemblies
- 2023Characterization of driving mechanisms involved in deconsolidation of thermoplastic composite laminates
- 2022Effects of heat transfer coefficient variations on composite curingcitations
- 2022Thick thermoplastic composite laminate consolidation: Experimental observations and numerical approachescitations
- 2022Online characterization of fiber-reinforced thermoplastic composite deconsolidation
- 2021Coalescence in fused filament fabrication process: thermo-dependent characterization of high-performance polymer propertiescitations
- 2021Composite manufacturing processes: modeling, characterization and monitoring for a better control of final quality
- 2021Experimental correlation of rheological relaxation and interface healing times in welding thermoplastic PEKK compositescitations
- 2020Adhesion of High Temperature Thermoplastic Compositescitations
- 2019Vacuum-bagged composite laminate forming processes: Predicting thickness deviation in complex shapescitations
- 2018A study on amplitude transmission in ultrasonic welding of thermoplastic compositescitations
- 2018A study on amplitude transmission in ultrasonic welding of thermoplastic compositescitations
- 2018Out-of-Autoclave Prepreg Processingcitations
- 2017On the Alternate Direction Implicit (ADI) Method for Solving Heat Transfer in Composite Stampingcitations
- 2017Compression molding of Carbon/Polyether ether ketone composites: Squeeze flow behavior of unidirectional and randomly oriented strandscitations
- 2016Compression moulding of Carbon/PEEK Randomly-Oriented Strands composites: A 2D Finite Element model to predict the squeeze flow behaviourcitations
- 2015Interstrand Void Content evolution in compression moulding of Randomly Oriented Strands (ROS) of thermoplastic composites
- 2014Ultrasonic welding of thermoplastic composites: a numerical analysis at the mesoscopic scale relating processing parameters, flow of polymer and quality of adhesioncitations
- 2014Modeling of the heating phenomena in ultrasonic welding of thermoplastic composites with flat energy directorscitations
- 2011Ultrasonic Welding of Thermoplastic Composites, Modeling of the Process Using Time Homogenization.citations
- 2011A level set based approach for the finite element simulation of a forming process involving multiphysics coupling: Ultrasonic welding of thermoplastic compositescitations
- 2010Modeling and simulation of vibrating flow. Application to the ultrasonic welding of thermoplastic matrix composites.
- 2009Développement d'un code éléments finis pour simuler le soudage par ultrasons de matériaux composites = Development of a Finite element code for simulating the ultrasonic welding of composite materials
- 2008Ultrasonic Welding of Thermoplastic Composites, Modeling and Simulation of the Process
- 2008Ultrasonic welding of thermoplastic composites, modeling of the processcitations
Places of action
| Organizations | Location | People |
|---|
article
A study on amplitude transmission in ultrasonic welding of thermoplastic composites
Abstract
Ultrasonic welding of thermoplastic composite materials is a promising joining technique that is now moving towards up-scaling, i.e. the assembling of large industrial parts. Despite its growing technological maturation, the assumed physical mechanisms underlying ultrasonic heating (viscoelastic heating, friction) are still insufficiently understood and modelled. In particular, the hammering phenomenon, resulting from the periodic loss of contact between the sonotrode and adherends due to the high frequency vibration caused to the former, directly impacts the heating efficiency. We propose in this work an original experimental and modelling approach towards a better understanding of the hammering effect. This approach makes combined use of: (i) an experimental static welding setup provided with a high-frequency laser sensor to analyse the vibration amplitude transmitted to the adherends and (ii) an improvement of the multiphysical finite element model already presented in previous works. Results show it is possible to obtain a good estimation of the vibration transmitted to the upper adherend from laser measurements close to the sonotrode. The hammering effect is shown to decrease during the welding process, due to the heating of the interface which directly affects further 2 heat generation. Quantitative introduction of this hammering effect in the existing numerical model results in improved predictions in terms of dissipated power in time.