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Experimental and numerical investigation on microstructural inhomogeneities �in UD carbon-fibre-reinforced thermoplastics

Löbbecke, Miriam and Schuld, Alexander and Gutknecht, Florian (2014) Experimental and numerical investigation on microstructural inhomogeneities �in UD carbon-fibre-reinforced thermoplastics. In: Konferenz-Proceedings. ODAS 2014, 11. - 13. Juni 2014, Köln, Deutschland.

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Abstract

Calculation of continuous fibre-reinforced-plastics (FRP) for aircraft and automobile applications is usually conducted by using Classical Laminate Theory (CLT), in which inhomogeneous composite plies are considered as homogeneous material. For representing the elastic behaviour of FRPs the CLT-method is well suited. However, plastic and damage behaviour particularly found in FRPs with thermoplastic matrix is affected by inhomogeneities. Thus, to improve the dimensioning of aforementioned structures identification and modelling of relevant representative regions with the inhomogeneous microstructure are essential. In this work a detailed analysis of the microstructure was conducted for building up a realistic parametric numerical model with modifiable fibre arrangement. In simulations of different relevant microstructures the elastic and plastic response of a unidirectional carbon-fibre-reinforced thermoplastic on mechanical loading was investigated. The importance of modelling microstructural details to predict elastic-plastic material behaviour was underlined by comparison of different fibre arrangements.

Item URL in elib:https://elib.dlr.de/91053/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental and numerical investigation on microstructural inhomogeneities �in UD carbon-fibre-reinforced thermoplastics
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Löbbecke, MiriamMiriam.Loebbecke (at) dlr.deUNSPECIFIED
Schuld, AlexanderDLR - Inst. WF - Abt. ENMUNSPECIFIED
Gutknecht, FlorianUNSPECIFIEDUNSPECIFIED
Date:June 2014
Journal or Publication Title:Konferenz-Proceedings
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Faserverbundkunststoff, Mikrostruktur, Werkstoffsimulation
Event Title:ODAS 2014
Event Location:Köln, Deutschland
Event Type:international Conference
Event Dates:11. - 13. Juni 2014
Organizer:DLR und ONERA
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: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Löbbecke, Miriam
Deposited On:04 Nov 2014 14:50
Last Modified:04 Nov 2014 14:50

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