Modeling of heat transfer in thermoplastic composite tape lay-up manufacturing

Tumkor, Serdar; Turkmen, Nedim; Chassapis, Constantin; Manoochehri, Souran

doi:10.1016/s0735-1933(01)00212-3

Cited by 32 publications

(43 citation statements)

References 8 publications

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“…When all boundary conditions have been defined, the problem can be discretized and solved, where both finite element [11,27,28,31,46,63,65,77,83] and finite differences [25,34,55,57,80,81,86] methods have been used. As these techniques are not specific to radiative heating, they are not part of this review.…”

Section: Source Processmentioning

confidence: 99%

A review of radiative heating in automated layup and its modelling

Orth¹

2017

Zeitschrift Kunststofftechnik

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A review of radiative heating in automated layup and its modelling Automated layup processes are highly suitable for an efficient production of carbon fiber reinforced parts, especially for aerospace applications. Heat input by means of radiative heating offers advantages for these processes and is well established in different forms. The presented work reviews the modelling of radiative heating in automated layup, covering thermoset and thermoplastic materials. Laser and infrared heat sources are studied with their characteristics, similarities and differences, as well as optical interaction with the material. Numerical modelling of the heat transfer is presented with an emphasis on implementation of radiative heating. Literaturübersicht zur Strahlungserwärmung in automatisierten Faserablegeverfahren und deren Berechnung Automatisierte Faserablegeverfahren haben sich in der Luft-und Raumfahrt als geeignete Prozesse zur effektiven Produktion etabliert, wobei der Wärmeeintrag durch Strahlung weitrechende Vorteile bietet. Die vorliegende Arbeit fasst Untersuchungen zum Einsatz und insbesondere zur Berechnung von Strahlungsheizungen in spezifischen Anwendungen zusammen und berücksichtigt sowohl thermoplastische als auch duromere Verbundwerkstoffe. Dabei werden die Eigenschaften, Gemeinsamkeiten und Unterschiede von Laser und Infrarot Strahlungsquellen, sowie die optischen Interaktionen mit dem bestrahlten Material betrachtet. Die numerische Abbildung der Wärmeübertragung wird mit einem Fokus auf Strahlungserwärmung beleuchtet.

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Section: Source Processmentioning

confidence: 99%

A review of radiative heating in automated layup and its modelling

Orth¹

2017

Zeitschrift Kunststofftechnik

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“…where interaction is the adsorption energy, surface is the energy of fiber layer, and polymer is the energy of matrix layer. The results of AE are calculated by using (15) and (16) under different processing parameters, which are shown in Figure 11.…”

Section: Microsystem and Its Boundary Conditionsmentioning

confidence: 99%

“…Experiments demonstrated that an excellent bond quality can be obtained at high velocities and low input power in case the laser is primarily aimed at the tape. Tumkor et al [15] established the model of thermoplastic tape lay-up in terms of heat transfer and investigated the effects of processing parameters on the quality of thermoplastic composite laminates fabricated by tape placement. Sonmez and Akbulut [16] adopted two objectives to optimize processing parameters.…”

Section: Introductionmentioning

confidence: 99%

Multiscale Collaborative Optimization of Processing Parameters for Carbon Fiber/Epoxy Laminates Fabricated by High-Speed Automated Fiber Placement

Han

Sun

Shao

et al. 2016

Advances in Materials Science and Engineering

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Processing optimization is an important means to inhibit manufacturing defects efficiently. However, processing optimization used by experiments or macroscopic theories in high-speed automated fiber placement (AFP) suffers from some restrictions, because multiscale effect of laying tows and their manufacturing defects could not be considered. In this paper, processing parameters, including compaction force, laying speed, and preheating temperature, are optimized by multiscale collaborative optimization in AFP process. Firstly, rational model between cracks and strain energy is revealed in order that the formative possibility of cracks could be assessed by using strain energy or its density. Following that, an antisequential hierarchical multiscale collaborative optimization method is presented to resolve multiscale effect of structure and mechanical properties for laying tows or cracks in high-speed automated fiber placement process. According to the above method and taking carbon fiber/epoxy tow as an example, multiscale mechanical properties of laying tow under different processing parameters are investigated through simulation, which includes recoverable strain energy (ALLSE) of macroscale, strain energy density (SED) of mesoscale, and interface absorbability and matrix fluidity of microscale. Finally, response surface method (RSM) is used to optimize the processing parameters. Two groups of processing parameters, which have higher desirability, are obtained to achieve the purpose of multiscale collaborative optimization.

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“…Thermal conductivity and specific heat at different temperatures are shown in Table 1. 14 When composite is heated by hot gas, convective heat transfer coefficient varies widely. Convective heat transfer coefficient can be calculated 23 as follows where Nu is the Nusselt number.…”

Section: Transient Temperature Field Analysismentioning

confidence: 99%

Dynamic finite element simulation and transient temperature field analysis in thermoplastic composite tape lay-up process

Yang

2013

Journal of Thermoplastic Composite Materials

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In the lay-up process of thermoplastic composite tape, the thermal conditions have great influence on the end quality and performance of composites. In the lay-up process of thermoplastic matrix composites, a semi-infinite solid model is used to analyse the heat transfer by simulating the heating of hot gas torch. Temperature of the control volume is calculated based on the model. A dynamic finite element model is developed to obtain the transient temperature field. The birth-death element strategy in ANSYS was used to simulate the movement of lay-up head during dynamic loading and laying-up prepreg onto the composite substrate. The simulation results of using the transient heat transfer model and the finite element model were compared well. The bonding temperature increases linearly with the heater temperature and is closely related to the moving speed of the roller. The bonding temperature changed slowly when the roller moved faster.

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Modeling of heat transfer in thermoplastic composite tape lay-up manufacturing

Cited by 32 publications

References 8 publications

A review of radiative heating in automated layup and its modelling

A review of radiative heating in automated layup and its modelling

Multiscale Collaborative Optimization of Processing Parameters for Carbon Fiber/Epoxy Laminates Fabricated by High-Speed Automated Fiber Placement

Dynamic finite element simulation and transient temperature field analysis in thermoplastic composite tape lay-up process

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