20 research outputs found
The application of Hart's state variable description of inelastic deformation to Carrara marble at T <450°C
Methodology and recent developments for using neutron diffraction to characterize the mechanical properties of rocks
Monitoring in situ stress-strain behaviour during plastic yielding in polymineralic rocks using neutron diffraction
Effects of superimposed electric field and porosity on the hydrostatic pressure-induced rhombohedral to orthorhombic martensitic phase transformation in PZT 95/5 ceramics
Chemical and oxidation-state imaging of mineralogical intergrowths: The application of X-ray photo-emission electron microscopy (XPEEM)
Mapping Grain Strains in Sand Under Load Using Neutron Diffraction Scanning
Towards the improvement of the understanding of force/stress distribution in granular media under load, a new experimental approach is suggested. Neutron diffraction, a non-conventional experimental technique, has been successfully used to map the evolution of intragranular strains in sand specimens loaded in a novel plane-strain apparatus. Representative preliminary results from recent experiments are presented, focusing on the correlation between the macro- and micro-scale response of the material, to highlight the potential of the experimental approach