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Monitoring of the n...
Monitoring of the nano-structure response of natural clay under mechanical perturbation using small angle X-ray scattering and digital image correlation
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- Birmpilis, Georgios, 1988 (författare)
- Chalmers University of Technology
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- Hall, Stephen A. (författare)
- Lund University,Lunds universitet,Hållfasthetslära,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Solid Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Lages, Sebastian (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Friedrich-Alexander University Erlangen-Nürnberg
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- Dijkstra, Jelke, 1980 (författare)
- Chalmers University of Technology
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(creator_code:org_t)
- 2019-06-19
- 2019
- Engelska.
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Ingår i: Acta Geotechnica. - : Springer Science and Business Media LLC. - 1861-1133 .- 1861-1125. ; 14:6, s. 1965-1975
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Abstract
Ämnesord
Stäng
- This paper introduces a new experimental method to monitor the evolving intra-particle, nanometre-scale response during hydro-mechanical tests on undisturbed wet clay samples using small angle X-ray scattering (SAXS). The method uses a newly developed miniature plane-strain one-dimensional compression cell that facilitates simultaneous full-field surface displacement measurements using digital image correlation and SAXS measurements. The 60–120 s acquisition times offered by SAXS at synchrotron facilities are beneficial to study time-dependent mechanisms in clays. The experimental results presented indicate that, for the natural sensitive clay tested in this work, no significant structural changes occur at the intra-particle scale during loading, even when large strains are measured at the macro-scale. In addition, changes that are observed at this scale occur after the end of perturbation, i.e. the creation of new intra-particle structures. Further information is obtained on the orientation evolution of the fabric by the comparative analysis of the individual mineral component response.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- DIC
- Real-time
- SAXS
- Directional anisotropy
- Clay
- Nanoscale
- Clay
- DIC
- Directional anisotropy
- Nanoscale
- Real-time
- SAXS
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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