Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Morteza Nejati"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 11, Iss 6, Pp 1166-1183 (2019)
This paper introduces a new methodology to measure the elastic constants of transversely isotropic rocks from a single uniaxial compression test. We first give the mathematical proof that a uniaxial compression test provides only four independent str
Externí odkaz:
https://doaj.org/article/084d28151cfa43668a7e55c56938b35b
Autor:
Aliakbar Rezaei, Fereidoon Soltani, Fariborz Vafaei, Masoumeh Khoshhal, Majid Reza Ayatollahi, Naser Soltani, Morteza Nejati
Publikováno v:
Iranian Endodontic Journal, Vol 5, Iss 1, Pp 11-16 (2010)
INTRODUCTION: Many studies have been performed to evaluate the stress distribution around endodontic posts; those which compared posts composed of different materials are rare. The aim of this study was to compare stresses induced in dentin by three
Externí odkaz:
https://doaj.org/article/b2a3de19bed94d61b9a0b388c57d6770
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 45:3333-3346
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbfa19ca1d7a9a3a0a6349ae4419167f
https://doi.org/10.1111/ffe.13823
https://doi.org/10.1111/ffe.13823
Publikováno v:
Mathematics and Mechanics of Solids. 28:464-478
Current manuscript develops an analytical stress solution for the bi-material V-notches with an end hole (VO). To do so, based on the Kolosov-Muskhelishvili’s approach, while appropriate potential functions are employed, the boundary conditions of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03f91ed2ed6bfd762c5a2b376f9c2c2e
https://doi.org/10.1177/10812865221084311
https://doi.org/10.1177/10812865221084311
Publikováno v:
Rock Mechanics and Rock Engineering. 55:3353-3365
A new test, referred to as axially double-edge notched Brazilian disk (ANBD), is proposed to measure true mode $$\mathrm {III}$$ III fracture toughness ($$K_{\mathrm {IIIc}}$$ K IIIc ) of rock materials. The term true denotes a shear-induced fracturi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e24a57e05eb6017b5564060dc03cf820
https://doi.org/10.1007/s00603-022-02809-8
https://doi.org/10.1007/s00603-022-02809-8
Publikováno v:
Procedia Structural Integrity. 39:792-800
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ce99384f5a49ea82f7044368151908d
https://doi.org/10.1016/j.prostr.2022.03.152
https://doi.org/10.1016/j.prostr.2022.03.152
Publikováno v:
Applied Mathematical Modelling. 91:837-862
This paper introduces the series expansion of the crack tip asymptotic fields in an anisotropic plane. Using stress-based definitions of the fracture loading modes, we present the series solutions of stresses, strains and displacements associated wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d53a9c62466618da7298876ad7042fe5
https://doi.org/10.1016/j.apm.2020.09.025
https://doi.org/10.1016/j.apm.2020.09.025
Publikováno v:
International Journal of Solids and Structures. 195:74-90
This paper presents the results of 124 pure Mode I fracture toughness tests on two types of anisotropic rocks, the metamorphic Grimsel Granite and the sedimentary Mont Terri Opalinus Clay. The results show that Mode I cracks in anisotropic rocks tend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c1b6dbf197b9d64a588b684a5bba4f4
https://doi.org/10.1016/j.ijsolstr.2020.03.004
https://doi.org/10.1016/j.ijsolstr.2020.03.004
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics, 46 (11)
This article revisits the formulation of the J-integral in the context of hydraulic fracture mechanics. We demonstrate that the use of the classical J-integral in finite element models overestimates the length of hydraulic fractures in the viscosity-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd5435e0dc7923b37358ca76bc033189
Publikováno v:
International Journal of Solids and Structures, 241
We evaluate the accuracy of three well-known fracture growth theories to predict crack trajectories in anisotropic rocks through comparison with new experimental data. The results of 99 fracture toughness tests on the metamorphic Grimsel Granite unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f6c1067e8b7e7871061802a2c8f7181