Search Results - "Pappas, Georgios A."

Monitoring of Torque Induced Strain in Composite Shafts with Embedded and Surface-Mounted Optical Fiber Bragg Gratings by Konstantaki, Maria, Violakis, Georgios, Pappas, Georgios A, Geernaert, Thomas, Korakas, Nikos, Tiriakidis, Nikos, Tiriakidi, Thomai, Tiriakidis, Kosmas, Thienpont, Hugo, Berghmans, Francis, Botsis, John, Pissadakis, Stavros

“…In this study, silica glass, optical fiber Bragg gratings (FBGs) are used for torque-induced strain monitoring in carbon fiber reinforced polymer (CFRP) hollow…”
Get full text

Material response and failure of highly deformable carbon fiber composite shells by Schlothauer, Arthur, Pappas, Georgios A., Ermanni, Paolo

“…Very thin carbon fiber composite shells can withstand large bending curvatures without failure. The resulting high tensile and compressive strains require…”
Get full text

Towards the realization of composite metastructures: A failure analysis of connections by Gaultier, Victor, Pappas, Georgios A.

“…[Display omitted] •Interfaces in composite metastructures are treated as delaminating cracks•Upon extension, connection failure is influenced by laminate…”
Get full text

Towards a geometry independent traction-separation and angle relation due to large scale bridging in DCB configuration by Pappas, Georgios A., Botsis, John

“…Traction-separation relations due to large scale bridging in composites are very important in modeling their fracture response. Several works demonstrated that…”
Get full text

Building an interdisciplinary program of cardiovascular research at the Swiss Federal Institute of Technology– the ETHeart story by Kourouklis, Andreas P., Wu, Xi, Geyer, Robin C., Exarchos, Vasileios, Nazari, Timo, Kaemmel, Julius, Magkoutas, Konstantinos, Daners, Marianne Schmid, Weisskopf, Miriam, Maini, Lucrezia, Roman, Cosmin, Iske, Jasper, Pappas, Georgios A., Chen, Mary Jialu, Smid, Caroline, Unbehaun, Axel, Meyer, Alexander, Emmert, Maximilian, Ferrari, Aldo, Schuett, Corina, Poulikakos, Dimos, Mazza, Edoardo, Falk, Volkmar, Cesarovic, Nikola

“…In this backstory, researchers from Swiss Federal Institute of Technology (ETH Zurich) who initiated an interdisciplinary program to generate innovative…”
Get full text

Bending failure analysis and modeling of thin fiber reinforced shells by Pappas, Georgios A., Schlothauer, Arthur, Ermanni, Paolo

“…In this work, the impact of high stress gradients, found in bending of thin unidirectional fiber reinforced shells (~0.1 to 1 mm), on compressive…”
Get full text

Variations on R-curves and traction-separation relations in DCB specimens loaded under end opening forces or pure moments by Pappas, Georgios A., Botsis, John

“…In this work the differences in R-curve response and traction-separation relations due to a finite damage zone or large-scale bridging (LSB) in mode I fracture…”
Get full text

A parametric study on pulse duplicator design and valve hemodynamics by Smid, Caroline C., Pappas, Georgios A., Falk, Volkmar, Ermanni, Paolo, Cesarovic, Nikola

“…Background In vitro assessment is mandatory for artificial heart valve development. This study aims to investigate the effects of pulse duplicator features on…”
Get full text

Manufacturing studies of a polymeric/composite heart valve prosthesis by Chen, Mary Jialu, Pappas, Georgios A., Smid, Caroline C., Cesarovic, Nikola, Falk, Volkmar, Ermanni, Paolo

“…Current transcathether heart valves rely on metal mesh stents, resulting in discontinuous stent‐leaflet interfaces that introduce stress concentrations,…”
Get full text

Piezotronic, ZnO Overlaid Bragg Grating Organic Vapor Sensors by Lopez-Torres, Diego, Aguado, Cesar Elosua, Pappas, Georgios A., Konstantaki, Maria, Klini, Argyro, Lappas, Alexandros, Arregui, Francisco J., Pissadakis, Stavros

“…We present a zinc oxide (ZnO) out-cladding, overlaid optical fiber Bragg grating sensor, for the detection of vapors of common alcohols and acetone at…”
Get full text

Tailoring crystallinity for hemocompatible and durable PEEK cardiovascular implants by Chen, Mary Jialu, Pappas, Georgios A, Massella, Daniele, Schlothauer, Arthur, Motta, Sarah E, Falk, Volkmar, Cesarovic, Nikola, Ermanni, Paolo

“…Polymers have the potential to replace metallic or bioprosthetic heart valve components due to superior durability and inertness while allowing for native…”
Get more information

Individualized lightweight structures for biomedical applications using additive manufacturing and carbon fiber patched composites by Kussmaul, Ralph, Biedermann, Manuel, Pappas, Georgios A., Jónasson, Jónas Grétar, Winiger, Peter, Zogg, Markus, Türk, Daniel-Alexander, Meboldt, Mirko, Ermanni, Paolo

“…Combining additive manufacturing (AM) with carbon fiber reinforced polymer patched composites unlocks potentials in the design of individualized, lightweight…”
Get full text

Thin-ply thermoplastic composites: From weak to robust transverse performance through microstructural and morphological tuning by Schlothauer, Arthur, Pappas, Georgios A., Ermanni, Paolo

“…Thin-shell carbon fiber composites have great potential for structures that require large recoverable deformations, high stiffness and low weight, as in…”
Get full text

ZnO Based, Piezotronic Optical Fiber Sensors for Tracing Volatile Organic Compounds by Lopez-Torres, Diego, Aguado, Cesar Elosua, Pappas, Georgios A., Konstantaki, Maria, Klini, Argyri, Lappas, Alexandros, Arregui, Francisco J., Pissadakis, Stavros

“…The detection of volatile organic compounds (VOCs) is a major market and research domain, where optical sensing technologies have shown promising advances [1]…”
Get full text

Piezotronic, ZnO overlaid Bragg grating organic vapors sensors by Lopez-Torres, Diego, Aguado, Cesar Elosua, Pappas, Georgios A., Konstantaki, Maria, Klini, Argyro, Lappas, Alexandros, Arregui, Francisco J., Pissadakis, Stavros

“…We present a ZnO out-cladding, overlaid optical fiber Bragg grating sensor, for the detection of vapors of common alcohols and acetone at concentrations lower…”
Get full text

Thin-ply thermoplastic composites: from weak to robust transverse performance through microstructural and morphological tuning by Schlothauer, Arthur, Pappas, Georgios A, Ermanni, Paolo

“…Thin shell carbon fiber composites have great potential for structures that require large recoverable deformations, high stiffness and low weight, as in…”
Get full text