List of publications

Dissertation

Kappel E. Process Distortions in Composite Manufacturing - From an Experimental Characterization to a Prediction Approach for the Global Scale, Dissertation, Otto-von-Guericke University Magdeburg, 2013

Paper publications

Kappel E, Reinhard B, Roser T. High-rate, spring-in compensated, net-shape manufacturing of RTM-made composite frames within the EU project MAAXIMUS, ECCM17, Munich, Germany, June 2016

Link: http://www.eccm17.org/

 

Groh F, Kappel E, Hühne C, Meyer F. Process-induced distortions of composite structures due to through-thickness fibre volume fraction gradients, ECCM17, Munich, Germany, June 2016

Link: http://www.eccm17.org/

 

Kappel E, Buggisch M, Wockatz R, Prado VJS. Nominal-shape manufacturing of autoclave-injection composite stiffeners.

JEC Composites Magazine n° 106, 2016

 

Kappel E, Spring-back of preforms - an analogy to spring-in of composite structures, COMMASOL Whitepaper, Germany, May 2016

Link: http://www.commasol.de/

 

Kappel E, Forced-interaction and spring-in – relevant initiators of process-induced distortions in composite manufacturing. Composite Structures, Vol. 140, pp. 217-229, 2016

Link: http://www.sciencedirect.com/science/article/pii/S0263822316000295

 

Kappel E, Hühne C. Fertigungsinduzierte Deformationen von Hochleistungsverbundstrukturen. Lightweight-Design,02/16,pp. 22-28, 2016

Link: http://link.springer.com/article/10.1007/s35725-016-0005-0

 

Kappel E, Spring-in of curved CFRP/ foam-core sandwich structures. Composite Structures, Vol. 128, pp. 155-164, 2015

Link: http://www.sciencedirect.com/science/article/pii/S026382231500241X

 

Kappel E, Liebers N, Buggisch M, Hilmer P, Kleineberg M, Hühne C. Holistic quality approach for autoclave-injection composite manufacturing. JEC Composites Magazine n° 96 – Feature Aeronautics, 2015 JEC - Online Magazin

 

Kappel E, Stefaniak D, Fernlund G. Predicting process-induced distortions in composite manufacturing: A pheno-numerical simulation strategy. Composite Structures, Vol. 120, pp. 98-106, 2015

Link: http://www.sciencedirect.com/science/article/pii/S0263822314005170

 

Pagitz M, Kappel E. Design of Pressure Actuated Cellular Structures. arXiv:1403.4033, 2014

 

Kappel E, Stefaniak D, Hühne C. Process distortions in prepreg manufacturing - An experimental study on CFRP L-profiles, Composite Structures, Vol. 106, pp. 615-625, 2013

Link: http://www.sciencedirect.com/science/article/pii/S0263822313003437

 

Kappel E, Stefaniak D, Holzhüter D, Hühne C, M. Sinapius. Manufacturing distortions of a CFRP box-structure - A semi-numerical prediction approach, Composites: Part A, Vol. 51 , pp. 89-98, 2013

Link: http://www.sciencedirect.com/science/article/pii/S1359835X13001140

Kappel E, Stefaniak D, Spröwitz T, Hühne C. A semi-analytical simulation strategy and its application to warpage of autoclave-processed CFRP parts, Composites: Part A, Vol.43, pp. 1081-1091, 2011

Link: http://www.sciencedirect.com/science/article/pii/S1359835X11002855

Stefaniak D, Kappel E, Spröwitz T, Hühne C. Experimental identification of parameters inducing warpage of autoclave-processed CFRP parts, Composites: Part A, Vol.42, pp. 1985-1994, 2012

Link: http://www.sciencedirect.com/science/article/pii/S1359835X12000814

Rohwer K, Kappel E, Stefaniak D, Wille T. Spring-in and Warpage - Progress in Simulating Manufacturing aspects, Mechanics of Composite Materials 29 (2) Springer Science+Business Media New York, 2012

Link: http://www.springerprofessional.de/spring-in-and-warpage--progress-in-simulating-manufacturing-aspects

Book sections

Kappel E, Stefaniak D, Hühne C .About the Spring-In Phenomenon: Quantifying the Effects of Thermal Expansion and Chemical Shrinkage. Adaptive, Tolerant and Efficient Composite Structures - Research Topics in Aerospace. Springer Berlin Heidelberg 2012. Pages 275-283.

Link: http://www.springer.com/engineering/mechanical+engineering/book/978-3-642-29189-0

Hühne C, Kappel E, Stefaniak D. Compliant Aggregation of Functionalities Adaptive, Tolerant and Efficient Composite Structures Research Topics in Aerospace. Springer Berlin Heidelberg 2012. Pages 225-235.

Link: http://www.springer.com/engineering/mechanical+engineering/book/978-3-642-29189-0

Conference contributions

Kappel E, Hühne C. Process-induced distortions – A way forward to a prediction approach close to engineering practice. NAFEMS Seminar Simulation von Composites, Hamburg, Germany, 26-27 October 2016,

 

C Hühne, E Kappel. Process-induced distortions in Composite processing: Sources, relevance and efficient compensation measures.

Experience Composites Symposium, 21.-23.09.2016, Augsburg

Link: http://www.experience-composites.com

 

Kappel E, Hühne C. Process-induced distortions in composite processing: Sources, relevance and efficient compensation measures

ISCM - 7th International Symposium on Composites Manufacturing for High Performance Applications, Braunschweig, Germany, August 2016

Link: ISCM homepage

 

Kappel E, Reinhard B, Roser T. High-rate, spring-in compensated, net-shape manufacturing of RTM-made composite frames within the EU project maaximus, ECCM17, Munich, Germany, June 2016

Link: http://www.eccm17.org/

 

Groh F, Kappel E, Hühne C, Meyer F. process-induced distortions of composite structures due to through-thickness fibre volume fraction gradients, ECCM17, Munich, Germany, June 2016

Link: http://www.eccm17.org/

 

Steffen O, Ückert C, Kappel E, Bach T, Hühne C. A Multi-material, Multi-functional Leading Edge for the Laminar Flow Wing. 27th SICOMP Conference, Linköping, Schweden,2016

Link: http://www.swerea.se/en/sicomp-conference

 

Ückert C, Bach T, Kappel E, Heinrich L, Steffen O. CFRP Upper Wing Cover for Natural Laminar Flow. 27th SICOMP Conference, Linköping, Schweden,2016

Link: http://www.swerea.se/en/sicomp-conference

 

Groh F, Kappel E, Hühne C, Brymerski W. Experimental investigation of process induced deformations of automotive composites with focus on fast curing epoxy resins. 20th International Conference on Composite Materials, 19-24th July 2015, Copenhagen, Denmark

 

Kleineberg M, Liebers N, Buggisch M, Kappel E et. al. Fully controlled production environment for autoclave injection processes. CFK-Valley Stade Convention. Stade Germany, 2015

 

Kappel E, Stefaniak D, Hühne C. Process-Induced Distortions in Composite Manufacturing – A Straightforward Pheno-Numerical Prediction Approach, Nafems Seminar: ‘Simulation of Composites – A closed process chain?’, October 2014, Leipzig, Germany

 

Kappel E. Process-induced Distortions in CFRP Manufacturing: A bottle-neck for high-rate Production Scenarios. CFK-Valley Stade Convention. Stade Germany, 2014

Link: http://www.cfk-convention.com/fileadmin/Convention_2014/Referenten/Vortraege/CFK_Conv2014_Kappel.pdf

 

Stefaniak D, Kappel E, Kolotylo M, Hühne C. Experimental identification of sources and mechanisms inducing residual stresses in multi-layered fiber-metal laminates. Euro Hybrid Materials and Structures, Stade Germany, 2014

Link: http://www.dgm.de/dgm/hybrid/images/EuroHybrid-Proceedings.pdf

 

Kappel E. Prediction of manufacturing-induced distortions of an integral stiffened panel using a novel semi-numerical approach, ISCM - 6th International Symposium on Manufacturing Technology for Composite Aircraft Structures, Stade Germany, 2013

 

Kappel E, Stefaniak D, Hühne C. Semi-analytical Spring-in Analysis to Counteract CFRP Manufacturing Distortions by Tool Compensation, ICAS Conference, Brisbane, Australia, 2012

Link: http://www.icas.org/ICAS_ARCHIVE/ICAS2012/PAPERS/126.PDF

Rohwer K, Kappel E, Stefaniak D und Wille T. Spring-in and Warpage – Progress in Simulating Manufacturing Aspects. 17th International Conference Mechanics of Composite Materials, Riga, Latvia, 2012

Kappel E. Semi-analytisches Simulationsvorgehen zur effizienten Berechnung von Werkzeuggeometrien unter Berücksichtigung typischer Fertigungsabweichungen, NAFEMS Konferenz - Fortschritte in der Simulation von Composites, Wiesbaden, 2011

Link: Nafems Online Magazin

Kappel E. Kompensation von faserverbundspezifischen Fertigungsdeformationen im Werkzeug – Ein semi-analytischer Ansatz. CCeV, 6.Sitzung der Arbeitsgruppe „Engineering“, July 2011

Link: Presentation

Spröwitz T, Hühne C, Kappel E. Thermal Aspects for Composite Structures - From Manufacturing to In-Service Predictions, CEAS Conference 2009, Manchester, UK

Link: http://www.icas.org/ICAS_ARCHIVE/ICAS2008/PAPERS/508.PDF

Patents

Kappel E. Verfahren zur Herstellung eines Faserverbundbauteils, Verfahren zum Verifizieren eines Faserverbundbauteils sowie Rferenzelement DE 10 2014 11 118.4

Kappel E, Stefaniak D. Verformungsanalyse II DE 10 2014 108 639.2

Stefaniak D, Petersen E, Stegmaier M, Kappel E, Hühne C – Sandwichprüfkörper DE 10 2013 108 645.4

Kappel E. Verformungsanalyse - Verfahren zur Bestimmung der zu erwartenden, fertigungsinduzierten Deformation von Verbundstrukturen aus vorimprägnierten Halbzeugen (Prepreg) DE 10 2012 105 683 A1

Kappel E. Modellieren der Raumform eines einen Schichtaufbau aufweisenden Faserverbundbauteils nach dessen Aushärtung auf einem Formwerkzeug DE 10 2010 030 448.4-16

Stefaniak D, Kolesnikov B, Wolff J, Fink A, Hindersmann A, Kappel E. Verfahren zur Herstellung von Hybridbauteilen aus faserverstärktem Kunststoff mit integriertem metallischem Formwerkzeug DE 10 2011 050 304

Köke H, Kappel E, Stahl A. Prüfverfahren – Verschereigenschaften DE 10 2012 100 973

Diploma Thesis

Kappel E. Generalization of one-dimensional material models with the concept of representative directions. Diploma Thesis, Leibniz University of Hannover, 2009

 

Reviewer for:

Composite Science and Technology, Composite Materials, Composites: Part A, Aerospace Engineering, IEEE Sensors Journal, Composite Structures, Materials & Design