Results 21 to 30 of about 1,101,663 (283)

Polyaxial strength criterion and closed-form solution for squeezing rock conditions

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
In this paper, a nonlinear strength criterion is proposed using the average of intermediate (σ2) and minor (σ3) principal stresses in place of σ3 in Ramamurthy (1994)'s strength criterion.
Rupesh Kumar Verma, Sarvesh Chandra
doaj   +1 more source

Analytical Model of Wellbore Stability Analysis of Inclined Well Based on the Advantageous Synergy among the Five Strength Criteria

open access: yesGeofluids, 2023
The proper drilling mud density is vital for wellbore stability maintenance, which relies on both stress distribution on the borehole wall and rock strength.
Yufan Shi   +5 more
doaj   +1 more source

Core crush criterion to determine the strength of sandwich composite structures subjected to compression after impact [PDF]

open access: yes, 2008
In this study a core crush criterion is proposed to determine the residual strength of impacted sandwich structures. The core of the sandwich is made of a Nomex Honeycomb core and the faces are laminated and remain thin.
Aminanda, Yulfian   +3 more
core   +1 more source

Localization-delocalization transition in one-dimensional electron systems with long-range correlated disorder [PDF]

open access: yes, 2004
We investigate localization properties of electron eigenstates in one-dimensional (1d) systems with long-range correlated diagonal disorder. Numerical studies on the localization length $\xi$ of eigenstates demonstrate the existence of the localization ...
Nakayama, T., Nomura, T., Shima, H.
core   +2 more sources

Micromechanics-Based Strength Criterion for Root-Reinforced Soil

open access: yesMathematics
To address the limitation of using experimental parameters in the macroscopic strength criterion, a micromechanical strength criterion for root-reinforced soil is developed.
Wei Luo   +4 more
doaj   +1 more source

Study on strength criterion of gas hydrate-coal mixture based on Drucker - Prager criterion

open access: yesMeikuang Anquan, 2022
In order to obtain the applicability of the strength criterion of gas hydrate coal under high saturation, based on Drucker-Prager criterion and combined with the stress-strain curve of gas hydrate coal under conventional triaxial compression, the error ...
GAO Xia, MENG Wei, ZHANG Baoyong
doaj   +1 more source

Empirical Shear Strength Criterion for Artificial Joint

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract An accurate understanding of shear strength in joints is critical to effective geotechnical engineering. The complete rock shear test continues to shear after shear strength reaches it speak value, resulting in the appearance of a softening stage and a residual stage.
Ran Tan, Junrui Chai, Cheng Cao
openaire   +1 more source

Anisotropic behaviour law for sheets used in stamping: A comparative study of steel and aluminium [PDF]

open access: yes, 2003
For a car manufacturer, reducing the weight of vehicles is an obvious aim. Replacing steel by aluminium moves towards that goal. Unfortunately, aluminium's stamping numerical simulation results are not yet as reliable as those of steel.
Bruno Macquaire   +4 more
core   +6 more sources

Method of strength analysis for doubly-curved stiffened orthotropic shells by various strength theories [PDF]

open access: yesFME Transactions, 2023
The paper proposes a method of strength analysis for materials of thin-walled shell structures reinforced with stiffeners. The shells under consideration were made of orthotropic materials.
Semenov Alexey A.
doaj  

A new strength criterion for structured soils

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2013
AbstractExisting strength criteria are mostly formulated to describe the mechanical properties of reconstituted soils. However, the engineering characteristics of structured soils are different from those of reconstituted soils in many aspects, especially in their strength properties.
Liu, Enlong, Nie, Qing, Zhang, Jianhai
openaire   +1 more source

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