Výsledky vyhledávání - "Spiridon Konstantopoulos"

Akademický článek

Liquid composite molding reproducibility in real-world production of fiber reinforced polymeric composites: a review of challenges and solutions

Autor: Spiridon Konstantopoulos, Christian Hueber, Ioannis Antoniadis, John Summerscales, Ralf Schledjewski

Publikováno v: Advanced Manufacturing: Polymer & Composites Science, Vol 0, Iss 0, Pp 1-15 (2019)

Liquid composite molding (LCM) suffers from multiple factors that contribute to pronounced uncertainty of process characteristics. This results in compromised reproducibility which is associated to high scrap or the unpredictable behavior of approved

Externí odkaz: https://doaj.org/article/e260ec465bb74d7992f99f5b0392310c

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Identification of the effect of typical curvatures encountered in RTM parts on localized permeability of fibrous preforms

Autor: Ralf Schledjewski, Spiridon Konstantopoulos, Christian Hueber, Elisabeth Mühlbachler

Publikováno v: Advanced Manufacturing: Polymer & Composites Science. 2:57-66

Filling is a critical stage in resin transfer molding (RTM) manufacturing; it is associated to the formation of impregnation imperfections which can lead to defects. Simulations are typically employed to predict the flow behavior, which however need

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b24bd2172fe3c50e4a9383eecb7627f
https://doi.org/10.1080/20550340.2016.1229829

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Determination of the unsaturated through-thickness permeability of fibrous preforms based on flow front detection by ultrasound

Autor: Harald Grössing, Ralf Schledjewski, Patrick Hergan, Spiridon Konstantopoulos, Markus Weninger

Publikováno v: Polymer Composites. 39:360-367

The permeability of fibrous preforms used as reinforcements for fiber-reinforced polymeric composites is a decisive parameter for simulation-based predictions of common defects that occur during the filling process. This study focuses on the transver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f2250881ea6225b305fc7b409b0650d
https://doi.org/10.1002/pc.23944

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An evaluation of the reproducibility of ultrasonic sensor-based out-of-plane permeability measurements: a benchmarking study

Autor: David Becker, Harald Grössing, Ralf Schledjewski, Spiridon Konstantopoulos, Ewald Fauster, Peter Mitschang

Publikováno v: Advanced Manufacturing: Polymer & Composites Science. 2:34-45

Research concerning the measurement of the permeability of fabrics for polymer matrix composites has been ongoing since several decades, but remains in the focus of applied research for liquid composite molding. Today, several systems and technologie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cefa8d146c764b1ce71c8186fb7922fa
https://doi.org/10.1080/20550340.2016.1182783

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Numerical Filling Predictions and Mechanical Mold Simulations for Composite Manufacturing Techniques: RTM Tool Development

Autor: Harald Grössing, Spiridon Konstantopoulos, Ralf Schledjewski

Publikováno v: Key Engineering Materials. :423-432

This paper presents the development of a novel omega-shaped resin transfer molding (RTM) tool, which is especially designed to host different types of sensors and to avoid common problems of RTM (e.g. uneven heating, low tool durability, deflection).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ecb47da66552e8fe0d8ae82f884e159d
https://doi.org/10.4028/www.scientific.net/kem.651-653.423

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