Experimental Study on Rock Deformation Localization Using Digital Image Correlation and Acoustic Emission

T **ng, H Zhu, Y Song - Applied Sciences, 2024 - mdpi.com
In this study, the digital image correlation (DIC) method and acoustic emission (AE)
technology were combined to study the evolution of rock deformation localization in detail …

Deformation Experiments on Bowland and Posidonia Shale—Part II: Creep Behavior at In Situ pcT Conditions

J Herrmann, E Rybacki, H Sone, G Dresen - Rock Mechanics and Rock …, 2020 - Springer
To unravel their long-term creep properties at simulated reservoir conditions, we conducted
constant stress deformation experiments at elevated confining pressures, pc= 50–115 MPa …

Localization of deformation in fluid-saturated sandstone

RY Makhnenko, C Ge, JF Labuz - … Journal of Rock Mechanics and Mining …, 2020 - Elsevier
A laboratory study of inelastic deformation and localization was conducted to evaluate
microseismicity and fracture in fluid-saturated rock. Plane strain compression experiments …

Simulation of localized compaction in Tuffeau de Maastricht based on evidence from X-ray tomography

G Shahin, A Papazoglou, F Marinelli… - International Journal of …, 2019 - Elsevier
Deformation experiments with concurrent X-ray microtomography are used to characterize
the mechanical properties of a high-porosity carbonate rock from Central Europe (the …

Spatiotemporal evolution of seismicity during the cyclic operation of the Hutubi underground gas storage, **njiang, China

B Zhang, B Wang, B Wei, Z Wu, NE Wu, R Lu, Z Ji… - Scientific Reports, 2022 - nature.com
Underground gas storages (UGSs) are important large-scale industrial facilities used to
bridge the gap between natural gas consumption and supply. The cyclic operation of the …

Deformation localization and cracking processes of sandstone containing two flaws of different geometric arrangements

R Lei, Z Zhang, Z Ge, F Berto, G Wang… - Fatigue & Fracture of …, 2020 - Wiley Online Library
We present deformation localization and cracking process of sandstone with two flaws of
different geometric configurations in uniaxial compression. The full field strain and …

Spatial heterogeneity of precursory accelerating deformation in uniaxially compressed sandstones and prediction of failure time

L Cheng, S Hao, C Lu - Journal of Building Engineering, 2024 - Elsevier
The power law acceleration has been validated as an effective method for predicting failure
time, however, the precursory acceleration distribution in local monitoring signals is still …

Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks

J Xue, S Hao, R Yang, P Wang… - International Journal of …, 2020 - journals.sagepub.com
Three distinct length scales are involved in the deformation evolution and catastrophic
rupture of heterogeneous rocks in general: two essential ones are the specimen size …

A coupled elastic constitutive model for high porosity sandstone

MC Richards, KA Issen, MD Ingraham - International Journal of Rock …, 2022 - Elsevier
An elastic constitutive model is developed to predict the mechanical unloading response for
high porosity sandstone. The resulting model is sufficiently complex to represent known …

Damage evaluation and precursor of sandstone under the uniaxial compression: Insights from the strain-field heterogeneity

H Cheng, X Yang, Z Zhang, W Li, Z Ning - Plos one, 2021 - journals.plos.org
The stress-induced microcrack evolution in rock specimens causes a series of physical
changes and heterogeneous deformations. Some of these attributes (such as sound …