Direct detection of plasticity onset through total-strain profile evolution

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPapanikolaou, Stefanos
dc.contributor.authorAlava, Mikko J.
dc.contributor.departmentNational Centre for Nuclear Research
dc.contributor.departmentComplex Systems and Materials
dc.contributor.departmentDepartment of Applied Physicsen
dc.date.accessioned2021-08-25T06:50:55Z
dc.date.available2021-08-25T06:50:55Z
dc.date.issued2021-08-06
dc.description| openaire: EC/H2020/857470/EU//NOMATEN Funding Information: We acknowledge support from the European Union Horizon 2020 research and innovation program under Grant Agreement No. 857470 and from the European Regional Development Fund via Foundation for Polish Science International Research Agenda PLUS program Grant No. MAB PLUS/2018/8. M.J.A. would like to acknowledge support from the Academy of Finland via Grant No. 317464. We acknowledge the computational resources provided by the National Centre for Nuclear Research in Poland. The data that support the findings of this study, together with python analysis scripts, are available from S.P. upon reasonable request. Publisher Copyright: © 2021 American Physical Society.
dc.description.abstractPlasticity in solids is dependent on microstructural history, temperature, and loading rate, and sample-dependent knowledge of yield points in structural materials adds reliability to mechanical behavior. Yielding is commonly measured through controlled mechanical testing, in ways that either distinguish elastic (stress) from total deformation measurements or identify plastic slip contributions. In this paper, we show that yielding can be unraveled through statistical analysis of total-strain fluctuations during the evolution sequence of profiles, measured in situ, through digital image correlation. We demonstrate two distinct ways of quantifying yield locations in widely applicable crystal plasticity models for polycrystalline solids, using either principal component analysis or discrete wavelet transforms. We test and compare these approaches for synthetic data of polycrystals and a variety of yielding responses through changes in applied loading rates and strain-rate sensitivity exponents.en
dc.description.versionPeer revieweden
dc.format.extent8
dc.format.mimetypeapplication/pdf
dc.identifier.citationPapanikolaou , S & Alava , M J 2021 , ' Direct detection of plasticity onset through total-strain profile evolution ' , Physical Review Materials , vol. 5 , no. 8 , 083602 . https://doi.org/10.1103/PhysRevMaterials.5.083602en
dc.identifier.doi10.1103/PhysRevMaterials.5.083602
dc.identifier.issn2475-9953
dc.identifier.otherPURE UUID: 2f2dd65f-ce56-4536-88a3-81763dc62010
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/2f2dd65f-ce56-4536-88a3-81763dc62010
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85112352856&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/66690202/Direct_detection_of_plasticity_onset_through_total_strain_profile_evolution.PhysRevMaterials.5.083602_1.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/109115
dc.identifier.urnURN:NBN:fi:aalto-202108258352
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/857470/EU//NOMATEN Funding Information: We acknowledge support from the European Union Horizon 2020 research and innovation program under Grant Agreement No. 857470 and from the European Regional Development Fund via Foundation for Polish Science International Research Agenda PLUS program Grant No. MAB PLUS/2018/8. M.J.A. would like to acknowledge support from the Academy of Finland via Grant No. 317464. We acknowledge the computational resources provided by the National Centre for Nuclear Research in Poland. The data that support the findings of this study, together with python analysis scripts, are available from S.P. upon reasonable request. Publisher Copyright: © 2021 American Physical Society.
dc.relation.ispartofseriesPhysical Review Materialsen
dc.relation.ispartofseriesVolume 5, issue 8en
dc.rightsopenAccessen
dc.titleDirect detection of plasticity onset through total-strain profile evolutionen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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