| 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 |
|
Casari, Pascal
Nantes Université
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2024Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2024Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2024Monitoring the temperature during thermoplastic composites assembling with fibre Bragg gratings: Validation using a rheometer
- 2023Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2023Assessment of 4-point bending fatigue performance of composite sandwiches with reduced carbon footprint
- 2023Characterisation of damage mechanisms of GFRP-balsa sandwich under 4-point bending based on two-step clustering process in acoustic emission analysiscitations
- 2022Impact strength of thermally aged double lap adhesively bonded jointscitations
- 2021Mechanical Characterization of a Composite Sandwich Core Under Shear Stress Based on a Torsion Test
- 2021Moisture effects on monitoring GFRP-balsa sandwich structure by acoustic emission
- 2021Characterization of microcracking of NCF composites under accelerated hygrothermal cycles: Influence of the stitching yarn and the style of biaxial NCFcitations
- 2020Hygro-Thermo-Mechanical Responses of Balsa Wood Core Sandwich Composite Beam Exposed to Firecitations
- 2020On the determination of acoustic emission wave propagation velocity in composite sandwich structurescitations
- 2020Behavior of composite material instrumented by optical fiber
- 2020Behavior of composite material instrumented by optical fiber
- 20193D real time and in situ analysis of (de)consolidation mechanisms in fibre-reinforced thermoplastic composites during thermostamping
- 2019Morphing Hydrofoil Model Driven by Compliant Composite Structure and Internal Pressurecitations
- 2019Mesure et prédiction des déformations et contraintes résiduelles lors du refroidissement d’un stratifié composite thermoplastique
- 2019Microcracking of Non-Crimp Fabric composites under hygrothermal aging
- 2019Development of low pressure cold sprayed copper coatings on carbon fiber reinforced polymer (CFRP)citations
- 2019Composite laminate with embedded electric cables submitted to low energy impact
- 2019Morphing Hydrofoil Model Driven by Compliant Composite Structure and Cavity Pressure
- 2019Thermomechanical characterization of a low viscosity PA66 thermoplastic matrix and associated continuous glass fibre composite under processing conditionscitations
- 2019Measurement and prediction of the residual strains and stresses during the cooling of a thermoplastic composite laminate
- 2018Moisture diffusion in composites tubes: Characterization and identification of microstructure-properties relationshipcitations
- 2018Stress Gradient Determination in Anti-Corrosion Multilayer Coatingcitations
- 2018Thermomechanical characterization of a low viscosity PA66 thermoplastic matrix and associated continuous glass fibre composite under processing conditionscitations
- 2017Characterisation of the hygro-thermo-mechanical behaviour of organic matrix composites instrumented with optical fibres: A study of interfacial bondingcitations
- 2017Characterisation of the hygro-thermo-mechanical behaviour of organic matrix composites instrumented with optical fibres: A study of interfacial bondingcitations
- 2017Investigations on the thermo-mechanical behaviour of a complex assembly through dynamic mechanical analyses ; Etude du comportement thermomécanique d'un assemblage complexe par essais dynamiquescitations
- 2017Shear behavior of thermoformed woven-textile thermoplastic prepregs: An analysis combining bias-extension test and X-ray microtomographycitations
- 2014Numerical end experimental investigation of hygro mechanical states of glass fiber reinforced polyester composites experienced by FBG sensorscitations
- 2014Numerical end experimental investigation of hygro mechanical states of glass fiber reinforced polyester composites experienced by FBG sensorscitations
- 2014Hygroscopic strain measurement by fibre Bragg gratings sensors in organic matrix composites – Application to monitoring of a composite structurecitations
- 2014The hygroscopic behavior of plant fibres: a reviewcitations
- 2013Identification of moisture diffusion parameters in organic matrix compositescitations
- 2013Experimental characterization of interfacial adhesion of an optical fiber embedded in a composite materialcitations
- 2013Experimental characterization of interfacial adhesion of an optical fiber embedded in a composite materialcitations
- 2012Study of the diffusion behavior of natural fibers
- 2011Experimental investigation of the shear dynamic behavior of double-lap adhesively bonded joints on a wide range of strain ratescitations
- 2005Loading rate effects on foam cores for marine sandwich structurescitations
- 2004Structural mechanical testing of a full-size adhesively bonded motorboatcitations
- 2003Comportement des matériaux à voiles de bateaucitations
Places of action
| Organizations | Location | People |
|---|
document
Shear behavior of thermoformed woven-textile thermoplastic prepregs: An analysis combining bias-extension test and X-ray microtomography
Abstract
Thermoforming allows the manufacture of structural parts for the automotive and aeronautical domains using long fiber thermoplastic prepregs with short cycle times. During this operation, several sheets of molten prepregs are stacked and subjected to large macroscale strains, mainly via in-plane shear, out-of-plane consolidation or dilatation, and bending of the fibrous reinforcement. These deformation modes and the related meso and microstructure evolutions are still poorly understood. However, they can drastically alter the end-use macroscale properties of fabricated parts. To better understand these phenomena, bias extension tests were performed using specimens made of several stacked layers of glass woven fabrics and polyamide matrix. The macroscale shear behavior of these prepregs was investigated at various temperatures. A multiscale analysis of deformed samples was performed using X-ray microtomography images of the deformed specimens acquired at two different spatial resolutions. The low-resolution images were used to analyze the deformation mechanisms and the structural characteristics of prepregs at the macroscale and bundle scales. It was possible to analyze the 3D shapes of deformed samples and, in particular, the spatial variations of their thickness so as to quantify the out-of-plane dilatancy or consolidation phenomena induced by the in-plane shear of prepregs. At a lower scale, the analysis of the high-resolution images showed that these mechanisms were accompanied by the growth of pores and the deformation of fiber bundles. The orientation of the fiber bundles and its through-thickness evolution were measured along the weft and warp directions in the deformed samples, allowing the relevance of geometrical models currently used to analyze bias extension tests to be discussed. Results can be used to enhance the current rheological models for the prediction of thermoforming of thermoplastic prepregs.