Results 11 to 20 of about 261,552 (302)

Three-dimensional strength criterion for rocks: A review

open access: yesEnergy Reviews
Deep rocks are typically under a true-triaxial stress state. The strength of deep rock is thus dictated by both the direction and magnitude of principal stresses.
Jiacun Liu   +4 more
doaj   +4 more sources

Formulation of Anisotropic Strength Criterion for Geotechnical Materials

open access: yesAdvances in Civil Engineering, 2020
A new nonlinear unified strength (NUS) criterion is obtained based on the spatially mobilized plane (SMP) criterion and Mises criterion. New criterion is a series of smooth curves between SMP curved triangle and Mises circle in the π plane and thereby ...
Liping Chen   +5 more
doaj   +2 more sources

Multiaxial Strength Criterion Model of Concrete Based on Random Forest

open access: yesMathematics, 2023
The concrete strength criterion is the basis of strength analysis and evaluation under a complex stress state. In this paper, a large number of multiaxial strength tests were carried out, and many mathematical expressions of strength criteria were ...
Xingqiao Chen   +5 more
doaj   +2 more sources

The Strength of the SCT Criterion

open access: yes, 2017
15 ...
Emanuele Frittaion   +2 more
openaire   +3 more sources

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   +2 more sources

A compressive strength criterion for anisotropic rock materials [PDF]

open access: yesCanadian Geotechnical Journal, 1988
This paper proposes a general compressive strength criterion for anisotropic rock materials under multiaxial states of stress. The proposed criterion is a generalization of the Von Mises' criterion for yielding of ductile metals, which has also been used previously as a strength criterion for brittle fracture in the spirit of both being limits of ...
Ashour, H. A.
openaire   +3 more sources

A modified empirical criterion for strength of transversely anisotropic rocks with metamorphic origin [PDF]

open access: yesBulletin of Engineering Geology and the Environment, 2013
A modified empirical criterion is proposed to determine the strength of transversely anisotropic rocks. In this regard, mechanical properties of intact anisotropic slate obtained from three different districts of Iran were taken into consideration ...
Rasouli, Vamegh   +3 more
core   +3 more sources

EMPIRICAL STRENGTH CRITERION OF COMPOSITE MATERIALS

open access: yesВестник Донского государственного технического университета, 2018
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   +1 more source

Rock strength criterion considering the effect of hydrostatic stress on lode angle effect [PDF]

open access: yesEnergy Science & Engineering, 2019
Rock strength criterion is a basic subject in mining engineering and petroleum engineering. It has important guiding significances to the process of underground energy exploitation. Different rocks have different strength envelopes.
Zhenlong Song   +4 more
doaj   +2 more sources

Global subjective memorability and the strength-based mirror effect [PDF]

open access: yes, 2009
Between-list manipulations of memory strength through repetition commonly generate a mirror effect, with more hits, and fewer false alarms for strengthened items. However, this pattern is rarely seen with within-list manipulations of strength.
Perfect, Timothy J.   +5 more
core   +1 more source

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