Results 11 to 20 of about 1,152,060 (219)

Numerical Modeling of the Amount and Rate of Sand Produced in Oil Wells [PDF]

open access: yesJournal of Petroleum Science and Technology, 2021
Nowdays, sand production is one of the most important challenges in the oil and gas industries, making numerous issues. To prevent these problems, it is necessary to use mathematical models to estimate the sand production onset and the amount of sand ...
Ali Zalakinezhad, Saeid Jamshidi
doaj   +1 more source

Criteria used to define tumor necrosis factor-alpha inhibitors failure in patients with moderate-to-severe psoriasis: a systematic literature review

open access: yesAnnals of Medicine, 2023
Background Determining tumor necrosis factor-alpha inhibitors (anti-TNF-α) failure is still a challenge in the management of moderate-to-severe psoriasis.
Isabel Belinchon Romero   +5 more
doaj   +1 more source

Tensile validation tests with failure criteria comparison for various GFRP laminates [PDF]

open access: yesArchives of Civil Engineering, 2021
The paper studies the mechanical properties of glass fibre reinforced polymers (GFRP) with various types and orientation of reinforcement. Analyzed specimens manufactured in the infusion process are made of polymer vinyl ester resin reinforced with glass
Tomasz Wiczenbach, Tomasz Ferenc
doaj   +1 more source

Evaluation of Effective Parameters on Bearing Strength of Bolted Joints with GLARE Construction through FEM [PDF]

open access: yesمجله مدل سازی در مهندسی, 2020
This paper focuses on identification of bearing failure mechanisms in double sided bolted joints whith GLARE construction meanwhile to get a comprehensive analysis for bolted joint including GLARE type laminates.
Mahmood Zabihpoor   +2 more
doaj   +1 more source

Failure in Confined Brazilian Tests on Sandstone

open access: yesApplied Sciences, 2021
Strength of rocks in the confined tension region, where the minimum principal stress is tensile, has only infrequently been measured and is not well understood. Quasi-static confined Brazilian tests under a range of confining stresses (2.76 to 27.58 MPa)
Tyler Hagengruber   +4 more
doaj   +1 more source

Finite Elements Analysis of Biomechanical Behavior of the Bracket in a Gradual Horizontal Periodontal Breakdown—A Comparative Analysis of Multiple Failure Criteria

open access: yesApplied Sciences, 2023
This study assessed the stress distribution (in eighty-one 3D models of the second lower premolar) in a stainless-steel bracket and enamel crown under 0.5 N of intrusion, extrusion, rotation, translation, and tipping during a horizontal periodontal ...
Radu Andrei Moga   +4 more
doaj   +1 more source

Criteria for opening an axial cavity in cross-wedge rolling

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
The application of empirical, phenomenological deformation and energy theories of metal fracture in relation to the process of cross-wedge rolling is considered.
G. V. Kozhevnikova   +2 more
doaj   +1 more source

Gas-dynamic roof fall during the potash deposits development

open access: yesЗаписки Горного института, 2020
In the development of practically all potash salt deposits, the study of gas-dynamic phenomena (GDP) is one of the most difficult tasks to ensure mining safety.
Alexander A. Baryakh   +2 more
doaj   +1 more source

A multi-model approach for wooden furniture failure under mechanical load

open access: yesMechanics & Industry, 2022
Furniture failure generally appears at junctions between wooden parts. Failure prediction is a challenging problem considering the various technologies used for the assembly, the geometric dimensions of the wooden assembled parts and of the assembly ...
Chevalier Luc   +4 more
doaj   +1 more source

Experimental validation of Tsai-Wu failure criteria [PDF]

open access: yesINCAS Bulletin, 2012
The paper continues recent research of the authors, consisting in experimental determination of Tsai-Wu failure criteria coefficients as well as criteria validation considering a certain composite.
Ion FUIOREA, Dumitrita GABOR
doaj   +1 more source

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