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Process-induced Distortions in CFRP Manufacturing: A bottle-neck for high-rate Production Scenarios

Kappel, Erik and Stefaniak, Daniel and Hühne, Christian (2014) Process-induced Distortions in CFRP Manufacturing: A bottle-neck for high-rate Production Scenarios. In: 8th CFK Valley Stade Convention, pp. 86-94. CFK-Valley Stade Convention, 24-25. Juni 2014, Stade, Germany.

[img] PDF (Conference paper)

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


Undesired process-induced distortions (PID) are an inherent issue in today's CFRP manufacturing scenarios. Distortions are inevitable due to an interaction of composite-specific and process-specific parameters. In academia it is distinguished in three main phenomena Spring-in, Warpage and Forced- interaction while their specific relevance depends on the part shape at hand. As process distortions remain widely unconsidered in current partdevelopment chains, they induce considerable difficulties and costs in assembly. Time consuming rework of tools and manual shimming becomes necessary what adulterates efficient automated assembly processes. Consequently, industry demands for reliable prediction capabilities in order to overcome today’s experience-based compensation strategies and to end up with a sophisticated design process. In particular, efficient approaches are demanded in industry, which are able to predict PID with satisfying accuracy while their application should be as close as possible to industrial practice. The present paper introduces the acting mechanisms inducing PID, while comments on their technical relevance are given. Subsequently, a novel phenonumerical simulation strategy that focuses on PID is compared with state-of-the-art process simulation. The phenonumerical simulation strategy promises significant advantages in terms of reduced modeling and characterization efforts as available models from structural analysis (SA) can be used to predict PID.

Item URL in elib:https://elib.dlr.de/99001/
Document Type:Conference or Workshop Item (Speech)
Title:Process-induced Distortions in CFRP Manufacturing: A bottle-neck for high-rate Production Scenarios
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kappel, Erikerik.kappel (at) dlr.deUNSPECIFIED
Stefaniak, Danieldaniel.stefaniak (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:June 2014
Journal or Publication Title:8th CFK Valley Stade Convention
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 86-94
Keywords:Simulation, Composites, Faserverbunder, Fertigungsdeformationen, PID, Spring-in, Tool, Werkzeug Kompensation
Event Title:CFK-Valley Stade Convention
Event Location:Stade, Germany
Event Type:international Conference
Event Dates:24-25. Juni 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old), L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Kappel, Dr.-Ing. Erik
Deposited On:20 Nov 2015 14:46
Last Modified:31 Jul 2019 19:55

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