Results 51 to 60 of about 3,027 (216)

True Triaxial Strength Testing of Sandstones [PDF]

, 2013
Laboratory rock mechanical tests allow estimation of rock strength and deformation behaviour under stress states similar to the in-situ conditions. In general, the in-situ stresses are described by three principal stresses, the vertical, maximum and ...
Dewhurst, D., Rasouli, Vamegh, Minaeian, V.   +2 more
core   +1 more source

Railway ballast anisotropy testing via true triaxial apparatus [PDF]

, 2020
This paper aims to demonstrate the anisotropic behaviour of railway ballast via true-triaxial tests. To do so, a novel, large-scale, true-triaxial testing apparatus (GeoTT) is designed and constructed.
Laghrouche, O, Yu, Z, Tutumluer, E, Woodward, PK, Connolly, DP   +4 more
core   +5 more sources

Experimental study of mechanical properties of highly-stressed rocks under true triaxial unloading conditions with different unloading directions

Shuiwen dizhi gongcheng dizhi
During the excavation process of deep rock masses, the surrounding rock stress field forms alternating zones of stress increase (loading zones) and stress decrease (unloading zones) near the excavation surface, which can easily trigger instability and ...
Qian XIANG, Ke WANG, Lei WENG, Weijun YOU, Zhaofei CHU, Zeyu LI   +5 more
doaj   +1 more source

Design and fabrication of a low cost true triaxial cell for testing multiple size specimens

, 2012
Only a true triaxial cell has the ability to recreate 3D in situ stress conditions. Therefore a true triaxial cell was designed and fabricated. The cell was calibrated to ensure the lateral strains on the specimen were known during testing, and a ...
Schwartzkopff, A., Priest, S., Melkoumian, N., Egudo, J.   +3 more
core   +1 more source

Mechanical parameter evolutions and deterioration constitutive model for ductile–brittle failure of surrounding rock in high-stress underground engineering

Underground Space
The deep surrounding rock is usually in the true triaxial stress state, and previous constitutive models based on the understanding of uniaxial and conventional triaxial test results have difficulty characterizing the degradation and fracture process of ...
Zhi Zheng, Ronghua Li, Qiang Zhang, Xiaohua Huang, Wei Wang, Shuling Huang   +5 more
doaj   +1 more source

Particle Flow Simulation of Failure Process of Defective Sandstone under Different Intermediate Principal Stress under True Triaxial Action

, 2022
In order to explore the mechanical response characteristics of fractured sandstone under true triaxial different medium principal stresses, matdem particle flow software was used to study the mechanical response characteristics, fracture mechanism and ...
Ziyi Wang, Heng Ding, Chang Luo, Hengyu Su, Shu Ma   +4 more
core   +1 more source

Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles

Advanced Materials, EarlyView.
Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung, Jiaxiang Yi, Hieu Nguyen‐Duc, Tien Nu Hoang Lo, Weili Zhao, Chaoqun Dong, Fabien Sorin, Baris Caglar, Lei Wei, Tung Nguyen‐Dang   +9 more
wiley   +1 more source

True triaxial tests on unsaturated soils with suction-controlled condition

Yantu gongcheng xuebao, 2019
Based on the new true triaxial apparatus of Xi’an University of Technology, the pedestal of the pressure chamber is installed with a high-air-entry-value ceramic disk and porous plate is placed on the top of the specimens.
ZHENG Fang 1, SHAO Sheng-jun 1,2, ZHANG Bo 1, SHE Fang-tao 1
doaj   +1 more source

Research on the mechanical characteristics of granite failure process under true triaxial stress path

Rock and Soil Mechanics, 2021
The true triaxial loading and unloading tests on granite were conducted to obtain the mechanical characteristics of the granite in the construction area of an underground cavern.
LIU Jie, ZHANG Li-ming, CONG Yu, WANG Zai-quan   +3 more
doaj   +1 more source

A Two‐Stage Characterization Pipeline and Open‐Source Framework for Reproducible Tactile Sensing

Advanced Intelligent Systems, EarlyView.
The same soft tactile sensor returns different numbers when embodied in different robots. This is an Embodiment Gap that no shared framework currently captures transparently. A two‐stage characterization pipeline, paired with a FAIR open‐source digital datasheet, decouples intrinsic sensor behavior from embodiment effects and condenses cross‐laboratory
Matteo Lo Preti, Weng Buxiu, Petr Trunin, Muhammad Sunny Nazeer, Lucia Beccai, Perla Maiolino, Cecilia Laschi   +6 more
wiley   +1 more source