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Experimental identification of sources and mechanisms inducing residual stresses in multi-layered Fiber-Metal- Laminates

Stefaniak, Daniel and Kappel, Erik and Kolotylo, Martin and Hühne, Christian (2014) Experimental identification of sources and mechanisms inducing residual stresses in multi-layered Fiber-Metal- Laminates. In: Proceedings of Euro Hybrid Materials and Structures 2014. Deutsche Gesellschaft für Materialkunde e.V.. Euro Hybrid – Materials and Structures 2014, 10.-11. Apr. 2014, Stade, Deutschland.

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Abstract

In this paper the reduction of thermal residual interply stress in fiber metal laminates is focused which may significantly lower the mechanical properties of the laminate. At first, the necessity of stress reduction in different laminate configurations is discussed, enabling the evaluation of the benefit and the potential of specific configurations to lower their residual stress level. Different influencing factors are than considered and specific serial examinations are conducted on CFRP-UD-Steel specimens in fiber direc-tion, systematically modifying intrinsic and extrinsic factors during manufacturing. The impact of these parameters is then measured on the deflection of asymmetric specimens providing some promising ap-proaches to encounter manufacturing related thermal stresses in fiber metal laminates.

Item URL in elib:https://elib.dlr.de/97515/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental identification of sources and mechanisms inducing residual stresses in multi-layered Fiber-Metal- Laminates
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stefaniak, Danieldaniel.stefaniak (at) dlr.deUNSPECIFIED
Kappel, Erikerik.kappel (at) dlr.deUNSPECIFIED
Kolotylo, Martinmartin.kolotylo (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:10 April 2014
Journal or Publication Title:Proceedings of Euro Hybrid Materials and Structures 2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:Deutsche Gesellschaft für Materialkunde e.V.
Status:Published
Keywords:Fiber Metal Laminate, Residual Stress, Curing Stress, Hybrid Laminate
Event Title:Euro Hybrid – Materials and Structures 2014
Event Location:Stade, Deutschland
Event Type:international Conference
Event Dates:10.-11. Apr. 2014
Organizer:Deutsche Gesellschaft für Materialkunde e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Leitprojekt - Forschungsverbund Oberstufe
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Stefaniak, Daniel
Deposited On:27 Jul 2015 18:04
Last Modified:27 Jul 2015 18:04

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