Identification of non uniform thermal contact resistance in automated tape placement process

Barasinski, Anaïs; Leygue, Adrien; Soccard, Eric; Poitou, Arnaud

doi:10.1007/s12289-013-1144-9

Cited by 15 publications

(10 citation statements)

References 15 publications

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“…At the interface level, a heat flux is applied, coming from the laser and acting at the substrate / incoming tape interface. Moreover, thermal conduction between the different plies constituting the substrate is affected from a contact thermal resistance as discussed in our former works [1,2,6].…”

Section: High-resolution Thermal Analysismentioning

confidence: 95%

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Effects of material and process parameters on in-situ consolidation

León¹,

Martin²,

Barasinski³

et al. 2018

Int J Mater Form

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This is an author-deposited version published in: https://sam.ensam.eu Handle ID AbstractAutomated tape placement -ATP -is a recent manufacturing technology for composite materials. Therefore, a correct modeling of the multi-physical process is critical in order to make possible in-situ consolidation. In this work, we propose an accurate modelling framework and an efficient simulation procedure of physics occurring during the process with the aim of studying the influence of material and process parameters into the material consolidation evolution. For that purpose, an accurate description of the prepreg surface becomes compulsory, justifying the use of a multi-resolution description of it based on the use of wavelets.

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Section: High-resolution Thermal Analysismentioning

confidence: 95%

“…1. During these three stages, different physical phenomena occur, all them taking place at the tapesubstrate interface and are governed by temperature and pressure evolutions [1].…”

Section: Introductionmentioning

confidence: 99%

Effects of material and process parameters on in-situ consolidation

León¹,

Martin²,

Barasinski³

et al. 2018

Int J Mater Form

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“…The cohesion of two thermoplastic layers requires specific physical conditions: intimate contact and a temperature that is high enough to enable molecular diffusion but low enough for avoiding thermal degradation. The last two conditions acting in opposite directions on the heating process define the process window [2].…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Modeling and Simulation of Thermoplastic Automated Tape Placement: Effects of Metallic Particles Reinforcement on Part Consolidation

et al. 2019

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This paper concerns engineered composites integrating metallic particles to enhance thermal and electrical properties. However, these properties are strongly dependent on the forming process itself that determines the particle distribution and orientation. At the same time, the resulting enhanced thermal properties affect the reinforced resin viscosity whose flow is involved in the intimate contact evolution. Thus, a subtle and intricate coupling appears, and the process cannot be defined by ignoring it. In this paper, we analyze the effects of particle concentration and orientation on the process and processability. For this purpose, three main models are combined: (i) a multi-scale surface representation and its evolution, by using an appropriate numerical model; (ii) flow-induced orientation, and (iii) the impact of the orientation state on the homogenized thermal conductivity.

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“…Barasinski et al 17,18 measured and simulated a TP-AFP process and determined a contact resistance between the layers due to imperfect bonding. However, no laser NP heating TP-AFP machine was used.…”

Section: Introductionmentioning

confidence: 99%

“…Longer compaction phases and lower compaction forces were used. On other studies, Levy et al 20,21 used the function to model the interlayer thermal contact resistance during a laser-assisted fiber placement process with a through thickness heating principle, similar to Barasinski et al 17,18…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the temperature profile during the laser-assisted automated fiber placement of CFRP tapes with thermoplastic matrix

Kollmannsberger

Lichtinger

Hohenester

et al. 2017

Journal of Thermoplastic Composite Materials

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In this study, a thermodynamic model of a laser-assisted automated thermoplastic fiber placement process is developed and validated. The main focus is on modeling the heat transfer into the composite with a laser heat source, the thermal properties of the tape, and the resulting heat distribution in the part, the mold, and the compaction roller. A new integrated analytical method is presented to calculate the energy input of the laser based on the geometric boundary conditions, including first-order reflection and laser shadow. The carbon fiber/polyethersulphone tape is modeled by combining literature properties of carbon fiber and matrix as well as based on experimental data of the tape itself. Also a thermal contact resistance between the tape layers is modeled based on a literature model and own experimental measurements. The created model is discretized and implemented in a 2-D finite difference code. With the help of this simulation, the temperature distribution is calculated during layup. The influence of a possible thermal contact resistance between the composite layers is investigated. Furthermore, an experiment with a thermoplastic fiber placement machine from Advanced Fibre Placement Technology GmbH (AFPT) was conducted in order to evaluate the simulation. The simulation and the experiment show a good agreement and prove that thermal contact resistance between the layers is negligible for the investigation process.

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Identification of non uniform thermal contact resistance in automated tape placement process

Cited by 15 publications

References 15 publications

Effects of material and process parameters on in-situ consolidation

Effects of material and process parameters on in-situ consolidation

Multi-Scale Modeling and Simulation of Thermoplastic Automated Tape Placement: Effects of Metallic Particles Reinforcement on Part Consolidation

Numerical analysis of the temperature profile during the laser-assisted automated fiber placement of CFRP tapes with thermoplastic matrix

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