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Assessment of Hybrid Heating for Curing of CFRP Structures

Hilmer, Philipp and Al-Lami, Ali and Buggisch, Manuel (2017) Assessment of Hybrid Heating for Curing of CFRP Structures. In: 7th EASN conference - Proceedings. to 7th EASN International Conference on Innovation in European Aeronautics Research, 26. - 28. Okt 2017, Warschau, Polen. ISSN 2523-5052

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Official URL: http://www.easn.net/documents/


In manufacturing of carbon fiber reinforced polymers (CFRP) a wide variety of technologies are used nowadays. Besides the significant potential to develop novel technologies that enhance cost and lead-time reduction, there is a need to develop a comprehensive assessment framework and models to assess these new technologies. In practice, technologies have been directly compared with each other blanking out their consequences on the rest of the manufacturing processes. To enable assessing new technologies of CFRP manufacturing processes a detailed activity-based modeling has been introduced allowing tracing each technology within the production chain. Therefore, a systematic decision support framework has been developed by the German Aerospace Center (DLR) to establish the activity-based eco-efficiency assessment model (EEAM). Thus, decisions can be taken at an early development stage, if a certain technology proves being beneficial. In the context of the H2020 funded project EFFICOMP DLR implemented this framework and the related EEAM to compare hybrid heating technologies in curing CFRP parts. These hybrid heating concepts consist of two combined systems, a water heated mold and an autoclave. The standard autoclave process is used as a reference process. It is compared to the stand-alone water-tempering process as well as a combined water-tempering inside the autoclave, employing the convectional heating capability of the autoclave. These three curing concepts are applied and recorded at DLR facilities. The obtained data is used to parametrize the EEAM. The technologies are interchanged within a complete part manufacturing process chain in the assessment model, from fiber-cutting, to preforming, preparation, infusion, demolding and cleaning. Then the associated unit processes are defined to be considered for the comparison of the three technologies. The results facilitate sensitivity analyses showing benefits and drawbacks of all used techniques and the further developments potential.

Item URL in elib:https://elib.dlr.de/116594/
Document Type:Conference or Workshop Item (Speech)
Title:Assessment of Hybrid Heating for Curing of CFRP Structures
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hilmer, PhilippPhilipp.Hilmer (at) dlr.dehttps://orcid.org/0000-0001-8534-6665
Al-Lami, AliAli.Al-Lami (at) dlr.dehttps://orcid.org/0000-0003-4176-5547
Buggisch, ManuelManuel.Buggisch (at) dlr.deUNSPECIFIED
Date:26 October 2017
Journal or Publication Title:7th EASN conference - Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:cost assessment, composites, hybrid heating, composite manufacturing, autoclave, single line infusion, spring-in
Event Title:to 7th EASN International Conference on Innovation in European Aeronautics Research
Event Location:Warschau, Polen
Event Type:international Conference
Event Dates:26. - 28. Okt 2017
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
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Technology
Deposited By: Hilmer, Dr. Philipp
Deposited On:07 Dec 2017 15:35
Last Modified:31 Jul 2019 20:14

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