The mechanical behaviour and failure modes of volcanic rocks: a review
MJ Heap, MES Violay - Bulletin of Volcanology, 2021 - Springer
The microstructure and mineralogy of volcanic rocks is varied and complex, and their
mechanical behaviour is similarly varied and complex. This review summarises recent …
mechanical behaviour is similarly varied and complex. This review summarises recent …
Ductile deformation of the lithospheric mantle
The strength of lithospheric plates is a central component of plate tectonics, governed by
brittle processes in the shallow portion of the plate and ductile behavior in the deeper …
brittle processes in the shallow portion of the plate and ductile behavior in the deeper …
Quantification of microcrack characteristics and implications for stiffness and strength of granite
Microcracks can affect the mechanical properties of rocks, such as their stiffness and
strength. To provide a link between the microstructural parameters and the mechanical …
strength. To provide a link between the microstructural parameters and the mechanical …
Mineral composition and grain size effects on the fracture and acoustic emission (AE) characteristics of rocks under compressive and tensile stress
K Du, Y Sun, J Zhou, M Khandelwal, F Gong - Rock Mechanics and Rock …, 2022 - Springer
The influence of rock mineral composition and mineral grain size on basic rock strength
performance and AE characteristics have been studied, 13 different rocks microstructures …
performance and AE characteristics have been studied, 13 different rocks microstructures …
Microstructural controls on the physical and mechanical properties of edifice‐forming andesites at Volcán de Colima, Mexico
MJ Heap, Y Lavallée, L Petrakova… - Journal of …, 2014 - Wiley Online Library
The reliable assessment of volcanic unrest must rest on an understanding of the rocks that
form the edifice. It is their microstructure that dictates their physical properties and …
form the edifice. It is their microstructure that dictates their physical properties and …
Mesoscopic damage and fracturing of heterogeneous brittle rocks based on three-dimensional polycrystalline discrete element method
Rock heterogeneities often control microcracking on the grain scale and therefore the
mechanical behavior of the rock on the macroscale. We therefore studied the fracture …
mechanical behavior of the rock on the macroscale. We therefore studied the fracture …
[HTML][HTML] Effect of water on sandstone's fracture toughness and frictional parameters: Brittle strength constraints
Water presence causes a dramatic reduction of sandstone strength. Under compressive
stress conditions, the strength of a rock sample is controlled by frictional parameters and the …
stress conditions, the strength of a rock sample is controlled by frictional parameters and the …
Transfer mechanism and criteria for static–dynamic failure of granite under true triaxial unloading test
L Zhang, X Wang, Y Cong, Z Wang, J Liu - Geomechanics and Geophysics …, 2023 - Springer
In the construction procedure of infrastructure, the excavation disturbance significantly
changes the initial stress state of rocks in deep geotechnical engineering, and a rock burst …
changes the initial stress state of rocks in deep geotechnical engineering, and a rock burst …
Pore geometry as a control on rock strength
The strength of rocks in the subsurface is critically important across the geosciences, with
implications for fluid flow, mineralisation, seismicity, and the deep biosphere. Most studies of …
implications for fluid flow, mineralisation, seismicity, and the deep biosphere. Most studies of …
Degradation of physical and mechanical properties of sandstone subjected to freeze-thaw cycles and chemical erosion
Rocks are often exposed to chemical erosion and extreme temperature changes in cold
regions. In this study, the deterioration of sandstone is investigated under rapid freeze-thaw …
regions. In this study, the deterioration of sandstone is investigated under rapid freeze-thaw …