Quantifying the Rock Damage Intensity Controlled by Mineral Compositions: Insights from Fractal Analyses
نویسندگان
چکیده
Since each rock type represents different deformation characteristics, prediction of the damage beforehand is one most fundamental problems industrial activities and engineering studies. Previous studies have predicted stress–strain behaviors preceding failure; however, quantitative analyses progressive in rocks under stress not been accurately presented. This study aims to quantify pre-failure by investigating stress-induced microscale cracking process three types, including diabase, ignimbrite, marble, representing strong, medium-hard, weak respectively. We demonstrate crack intensity at critical levels where initiates (σci), propagates (σcd), failure occurs (σpeak) based on scanning electron microscope (SEM) images. Furthermore, progression was quantified for through fractal patterns these Our results show that diabase highest dimensions (DB) all levels. While marble produces lowest DB value up σci level, it presents greater values than those starting from σcd level. because ignimbrite controlled groundmass, proceeding such Rock texture controls stiffness and, hence, cracking. The mineral composition effective strength, but textural pattern minerals has a first-order control behavior. Overall, our provide better understanding which crucial design structures.
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ژورنال
عنوان ژورنال: Fractal and fractional
سال: 2023
ISSN: ['2504-3110']
DOI: https://doi.org/10.3390/fractalfract7050383