All-Thermoplastic Composite Sandwich Panels – Part I: Manufacturing                 and Improvement of Surface Quality

Skawinski, Olivier; Binétruy, Christophe; Krawczak, Patricia; Grando, J.; Bonneau, Eric

doi:10.1177/1099636204040094

Cited by 20 publications

(24 citation statements)

References 6 publications

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“…Using conventional methods of production, the only possible way to achieve the production rates necessary would be to introduce more production stations. New methods of production are being developed which show promise [58], and it is likely only a question of time and resources before satisfactory production rates and levels of automation sufficient for the automotive industry are achievable. Already we are seeing that the significant use of composite materials and sandwich structures is possible in automotive applications, even if they are somewhat extreme in nature [59].…”

Section: Applications Of Sandwich Structures In the Automotive Industrymentioning

confidence: 99%

Proposal of a Methodology for Multidisciplinary Design of Multifunctional Vehicle Structures including an Acoustic Sensitivity Study

Cameron¹,

Lind²,

Wennhage³

et al. 2009

Int. J. Vehicle Structures and Systems

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In this paper, a design methodology is proposed, wherein tools and knowledge from the areas of structural design, numerical optimization, and noise, vibration and harshness (NVH) engineering are combined into a single toolbox for vehicle design. The methodology attempts to address the topic of sustainable development from both economic and environmental perspectives within the vehicle industry. A brief review of the topics of NVH and numerical optimization is given for the purposes of disseminating knowledge. Finite element codes for predicting structural and acoustic response are implemented within the iterative design methodology, which is explained for generic problems. Specific focus is placed on the need for understanding functional requirements of the entire system rather than its components. The methodology is implemented in an automotive case study. The results in terms of design solution and development framework are evaluated and discussed. As part of this evaluation, and integral to the design process, an acoustic sensitivity analysis of the final solution is performed and the results are presented.

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Section: Applications Of Sandwich Structures In the Automotive Industrymentioning

confidence: 99%

Proposal of a Methodology for Multidisciplinary Design of Multifunctional Vehicle Structures including an Acoustic Sensitivity Study

Cameron¹,

Lind²,

Wennhage³

et al. 2009

Int. J. Vehicle Structures and Systems

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show abstract

“…4,6 To overcome several disadvantages of thermoset-based sandwich structures, for example, long manufacturing times, poor damage tolerance and recyclability, the use of thermoplastic composite (TPC) materials in sandwich structures seems promising. 6 –11…”

Section: Introductionmentioning

confidence: 99%

Definition of process parameters for manufacturing of thermoplastic composite sandwiches – Part A

Grünewald

Parlevliet

Altstädt

2017

Journal of Thermoplastic Composite Materials

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Thermoplastic composite sandwich structures offer great potential to meet the demands of lightweight structures for aeronautical applications. In this study, compression moulding of sandwich components, consisting of carbon fibre reinforced polyether ether ketone (CF/PEEK) skins and polyetherimide (PEI) core structures, is studied by modelling the effect of processing conditions on the properties of the sandwich structure, particularly the skin to core bond. In order to predict the skin-to-core tensile bond strength, a theoretical model is deduced, which is based on intimate contact and autohesion, the two mechanisms governing the fusion bonding process. The bond model allows the prediction of the tensile bond strength depending on the skin and core pre-heat temperatures and allows a prognostication about the expected failure mechanisms. According to the model, sandwiches manufactured with skin pre-heat temperatures above 290°C and a core kept at room temperature will feature a sufficient bond strength to fail cohesively within the core. In addition, the model predicts that pre-heating the core improves the bond strength. A verification of the model will be published in a follow-up paper.

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“…Fusion bonding of thermoplastic materials offers several interesting benefits for the manufacturing of sandwich structures compared to traditional thermoset approaches, including short cycle times and higher bond strengths compared to adhesive joining [1–3]. Therefore, this method looks promising for manufacturing sandwich structures, which can find application in structural helicopter parts such as cowlings or floor panels.…”

Section: Introductionmentioning

confidence: 99%

Mechanical performance of CF/PEEK–PEI foam core sandwich structures

Grünewald

Parlevliet

Matschinski

et al. 2017

Jnl of Sandwich Structures & Materials

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Previous work showed that thermoplastic composite sandwich structures offer great potential to meet the demands of lightweight structures for aviation applications. In this study, the influence of several processing parameters on the mechanical properties of thermoplastic sandwich components, consisting of carbon fibre reinforced polyetheretherketone skins and polyetherimide foam cores, is characterised. Sandwich specimens are manufactured with varying skin temperatures, core compaction distances and different polyetherimide concentrations at the skin–core interface. Following, sandwich samples are mechanically tested to characterise the bond strength, the core performance as well as the performance of the whole sandwich. The results show that in most cases the processing parameters significantly affect the cell structure of the sandwich core, provided that a proper fusion bond between skins and core exists. Thereby, the core performance seems to be weakened and failure predominantly occurs in the transition between affected and original cell structures.

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All-Thermoplastic Composite Sandwich Panels – Part I: Manufacturing and Improvement of Surface Quality

Cited by 20 publications

References 6 publications

Proposal of a Methodology for Multidisciplinary Design of Multifunctional Vehicle Structures including an Acoustic Sensitivity Study

Proposal of a Methodology for Multidisciplinary Design of Multifunctional Vehicle Structures including an Acoustic Sensitivity Study

Definition of process parameters for manufacturing of thermoplastic composite sandwiches – Part A

Mechanical performance of CF/PEEK–PEI foam core sandwich structures

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