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Fatigue behaviour of CFRP/steel hybrid composites

Lopes, Joao and Stefaniak, Daniel and Camanho, P.P. and Freitas, M. and Reis, L. (2015) Fatigue behaviour of CFRP/steel hybrid composites. nternational Conference on Composite Science and Technology ICCST 10, Lissabon, Portugal.

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Abstract

Hybrid CFRP/steel composites are a very promising solution to increase bolt bearing strength in composite aerospace structures. This paper reports the findings on the static and fatigue tests performed in composite specimens made of CFRP and steel foils and compares these results with conventional CFRP specimens. A servo hydraulic machine was used to perform fatigue tests under load control regime with R=0. Sinusoidal waveforms were adopted to control the load time evolution. Hybrid specimens have a considerable higher static strength than conventional CFRP and therefore their stress levels are higher in absolute values than conventional CFRP specimens. Conventional manufacturing techniques such as hand lay-up and drilling can be successfully applied to hybrid CFRP/steel composites.

Item URL in elib:https://elib.dlr.de/102135/
Document Type:Conference or Workshop Item (Speech)
Title:Fatigue behaviour of CFRP/steel hybrid composites
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lopes, JoaoICEMS and Departamento de Engenharia Mecânica. Instituto Superior Técnico. Universidade de Lisboa.UNSPECIFIED
Stefaniak, Danieldaniel.stefaniak (at) dlr.deUNSPECIFIED
Camanho, P.P.DEMec, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, PortugalUNSPECIFIED
Freitas, M.ICEMS and Departamento de Engenharia Mecânica. Instituto Superior Técnico. Universidade de Lisboa.UNSPECIFIED
Reis, L.ICEMS and Departamento de Engenharia Mecânica. Instituto Superior Técnico. Universidade de Lisboa.UNSPECIFIED
Date:September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Fibre Metal Laminates, Fatigue Steel, CFRP
Event Title:nternational Conference on Composite Science and Technology ICCST 10
Event Location:Lissabon, Portugal
Event Type:international Conference
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 > Functional Lightweight Structures
Deposited By: Stefaniak, Daniel
Deposited On:14 Jan 2016 12:18
Last Modified:10 May 2016 23:42

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