Matrix cracking in polymeric composites laminates

modelling and experiments

Document identifier: oai:DiVA.org:ltu-7614
Access full text here:10.1016/j.compscitech.2007.09.013
Keyword: Engineering and Technology, Materials Engineering, Composite Science and Engineering, Teknik och teknologier, Materialteknik, Kompositmaterial och -teknik, Polymeric Composite Materials, Polymera konstruktionsmaterial
Publication year: 2008
Relevant Sustainable Development Goals (SDGs):

The SDG label(s) above have been assigned by OSDG.ai

Abstract:

Composites ability to retain functionality in the presence of damage is a crucial safety and economic issue. Generally the first damage mode in composite laminates is matrix cracking, which affects the mechanical properties of the structure long before its load-bearing capacity is exhausted. In this paper, a detailed analysis of the effect of matrix cracking on the behaviour of cross-ply [0/90]s and unbalanced symmetric [0/45]s glass/epoxy laminates loaded statically in tension is performed. Theoretical predictions of stiffness reduction due to damage are based on the Equivalent Constraint Model (ECM), which takes into account concurrent matrix cracking in all plies of the laminate, although matrix cracking under consideration is developing only within the off-axis ply of the laminates. The longitudinal Young's modulus predictions are compared to experimentally derived data obtained using laser Raman spectroscopy (LRS). The good agreement between predicted and measured values of the reduced longitudinal Young's modulus validates the ECM model and proves that its basic assumptions are accurate. Thus, the predictions for all the mechanical properties by the ECM model are within a realistic range, while experimental evidence is required for further validation.

Authors

D.T.G. Katerelos

Luleå tekniska universitet; Materialvetenskap
Other publications >>

M. Kashtalyan

University of Aberdeen
Other publications >>

C. Soutis

University of Sheffield
Other publications >>

C. Galiotis

FORTH/ICE-HT, Patras
Other publications >>

Record metadata

Click to view metadata

	
    header: 
        identifier: oai:DiVA.org:ltu-7614
        datestamp: 2021-04-19T12:21:45Z
        setSpec: SwePub-ltu
    metadata: 
        mods: 
            @attributes: 
                version: 3.7
            recordInfo: 
                recordContentSource: ltu
                recordCreationDate: 2016-09-29
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7614
                10.1016/j.compscitech.2007.09.013
                2-s2.0-51849131147
                6021d240-cc42-11dd-99d1-000ea68e967b
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Matrix cracking in polymeric composites laminates
                subTitle: modelling and experiments
            abstract: 
Composites ability to retain functionality in the presence of damage is a crucial safety and economic issue. Generally the first damage mode in composite laminates is matrix cracking which affects the mechanical properties of the structure long before its load-bearing capacity is exhausted. In this paper a detailed analysis of the effect of matrix cracking on the behaviour of cross-ply 0/90s and unbalanced symmetric 0/45s glass/epoxy laminates loaded statically in tension is performed. Theoretical predictions of stiffness reduction due to damage are based on the Equivalent Constraint Model (ECM) which takes into account concurrent matrix cracking in all plies of the laminate although matrix cracking under consideration is developing only within the off-axis ply of the laminates. The longitudinal Young's modulus predictions are compared to experimentally derived data obtained using laser Raman spectroscopy (LRS). The good agreement between predicted and measured values of the reduced longitudinal Young's modulus validates the ECM model and proves that its basic assumptions are accurate. Thus the predictions for all the mechanical properties by the ECM model are within a realistic range while experimental evidence is required for further validation.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Materials Engineering
                        Composite Science and Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Materialteknik
                        Kompositmaterial och -teknik
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Polymeric Composite Materials
                    genre: Research subject
                    @attributes: 
                        lang: swe
                        authority: ltu
                    topic: Polymera konstruktionsmaterial
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Published
                4
                
Validerad; 2008; 20081217 (ysko)

            name: 
                    @attributes: 
                        type: personal
                        authority: ltu
                    namePart: 
                        Katerelos
                        D.T.G.
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Luleå tekniska universitet
                        Materialvetenskap
                    nameIdentifier: diokat
                    @attributes: 
                        type: personal
                    namePart: 
                        Kashtalyan
                        M.
                    role: 
                        roleTerm: aut
                    affiliation: University of Aberdeen
                    @attributes: 
                        type: personal
                    namePart: 
                        Soutis
                        C.
                    role: 
                        roleTerm: aut
                    affiliation: University of Sheffield
                    @attributes: 
                        type: personal
                    namePart: 
                        Galiotis
                        C.
                    role: 
                        roleTerm: aut
                    affiliation: FORTH/ICE-HT Patras
            originInfo: 
                dateIssued: 2008
            relatedItem: 
                @attributes: 
                    type: host
                titleInfo: 
                    title: Composites Science And Technology
                identifier: 
                    0266-3538
                    1879-1050
                part: 
                    detail: 
                            @attributes: 
                                type: volume
                            number: 68
                            @attributes: 
                                type: issue
                            number: 12
                    extent: 
                        start: 2310
                        end: 2317
            physicalDescription: 
                form: print
            typeOfResource: text