Monitoring of the nano-structure response of natural clay under mechanical perturbation using small angle X-ray scattering and digital image correlation

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Birmpilis G, Hall SA, Lages S, Dijkstra J
Zeitschrift: Acta Geotechnica
Jahr der Veröffentlichung: 2019
ISSN: 1861-1125


Abstract

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.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Lages, Sebastian Dr.
Lehrstuhl für Kristallographie und Strukturphysik


Einrichtungen weiterer Autorinnen und Autoren

Chalmers University of Technology / Chalmers tekniska högskola
Lund University / Lunds universitet


Zitierweisen

APA:
Birmpilis, G., Hall, S.A., Lages, S., & Dijkstra, J. (2019). Monitoring of the nano-structure response of natural clay under mechanical perturbation using small angle X-ray scattering and digital image correlation. Acta Geotechnica. https://dx.doi.org/10.1007/s11440-019-00832-8

MLA:
Birmpilis, Georgios, et al. "Monitoring of the nano-structure response of natural clay under mechanical perturbation using small angle X-ray scattering and digital image correlation." Acta Geotechnica (2019).

BibTeX: 

Zuletzt aktualisiert 2019-11-07 um 17:08