Results 1 to 10 of about 1,104,369 (188)

A nonlinear strength criterion for rock based on the peak value of deviatoric stress under conventional triaxial compression [PDF]

Scientific Reports
In order to accurately evaluate the rock strength under different confining pressures, a new nonlinear strength criterion with three parameters is proposed based on the peak value of deviatoric stress.
Zhixiong Peng, Yani Lu, Yawu Zeng, Ke Zhuo   +3 more
doaj   +2 more sources

EMPIRICAL STRENGTH CRITERION OF COMPOSITE MATERIALS

Advanced Engineering Research, 2010
Empirical long-term strength criterion in terms of limit stress for constructive polymer materials considering ageing factor is found. The criterion corresponds to the type of Goldenblat - Kopnov.
O.G. OSYAEV
doaj   +2 more sources

Mechanical properties and energy evolution and the applicability of strength criteria of sandstone under hydro-mechanical coupling

Meitan xuebao, 2023
To explore the hydraulic coupling characteristics of rocks, triaxial compression tests on water-saturated sandstone under hydro-mechanical coupling were carried out using the MTS815 rock mechanics test system. The test confining pressures were 10, 20, 30
Yanlin ZHAO, Tao TAN, Chunyang ZHANG, Qiang LIU, Yingjie ZHANG, Lianhua WU   +5 more
doaj   +1 more source

Mechanical properties and strength criterion of Zhanjiang structured clay in three-dimensional stress state

Rock and Soil Mechanics, 2021
In order to investigate the mechanical properties of Zhanjiang structured clay in the three-dimensional stress state and the influence of structure on its strength criterion, a series of undrained true triaxial tests of different intermediate principal ...
LIU Bing-heng, KONG Ling-wei, SHU Rong-jun, LI Tian-guo   +3 more
doaj   +1 more source

Analysis of Biaxial Mechanical Properties and Failure Criterion of Self-Compacting Concrete

Frontiers in Materials, 2021
Biaxial compression-compression, biaxial tension-compression and compression-shear tests were carried out on self-compacting concrete (SCC) using the rock true triaxial machine and compression-shear hydraulic servo machine to explore the biaxial ...
Jun Zhang, Chen Li, Congxiang Zhu, Zhiqing Zhao   +3 more
doaj   +1 more source

Developing a Three Dimensional (3D) Elastoplastic Constitutive Model for Soils Based on Unified Nonlinear Strength (UNS) Criterion

Frontiers in Earth Science, 2022
To achieve versatility, a unified nonlinear strength (UNS) criterion is put forward for capturing the complicated strength behaviors exhibited by geomaterials under three dimensional (3D) stress paths.
Sui Wang, Sui Wang, Sui Wang, Zuliang Zhong, Zuliang Zhong, Bin Chen, Xinrong Liu, Xinrong Liu, Bo Wu   +8 more
doaj   +1 more source

Stochastic Properties of Static Friction [PDF]

, 2020
The onset of frictional motion is mediated by rupture-like slip fronts, which nucleate locally and propagate eventually along the entire interface causing global sliding.
Albertini, Gabriele, Grigoriu, Mircea D., Kammer, David S., Karrer, Simon   +3 more
core   +3 more sources

A true triaxial strength criterion for rocks by gene expression programming

Journal of Rock Mechanics and Geotechnical Engineering, 2023
Rock strength is a crucial factor to consider when designing and constructing underground projects. This study utilizes a gene expression programming (GEP) algorithm-based model to predict the true triaxial strength of rocks, taking into account the ...
Jian Zhou, Rui Zhang, Yingui Qiu, Manoj Khandelwal   +3 more
doaj   +1 more source

New stopping criteria for segmenting DNA sequences [PDF]

, 2001
We propose a solution on the stopping criterion in segmenting inhomogeneous DNA sequences with complex statistical patterns. This new stopping criterion is based on Bayesian Information Criterion (BIC) in the model selection framework. When this stopping
A. Audit, A. E. Raftery, A. W. F. Edwards, B. James, C. K. Peng, F. R. Blattner, G. Bernardi, G. K. Zipf, G. Schwartz, H. Jeffreys, J. L. Oliver, J. Lin, J. V. Braum, K. P. Burnham, M. Johnson, M. V. Olson, P. Bernaola-Galván, P. Bernaola-Galván, P. Carpena, P. L. Krapivsky, R. F. Voss, R. Román-Roldán, S. Redney, V. E. Ramensky, W. Li, W. Li, W. Li, W. Li, W. Li, W. Li, Wentian Li   +30 more
core   +2 more sources

Study of stability of flat panels made of hybrid materials with destroying composite layers [PDF]

Космические аппараты и технологии
The effect of collapsing layers in flat panels made of a hybrid material on the stability under compression and shear is analyzed. The hybrid material is formed from carbon fiber and fiberglass blocks.
Azikov N. S., Zinin A. V.
doaj   +1 more source