Results 51 to 60 of about 4,812,338 (197)

Calculating the cohesion and internal friction angle of volcanic rocks and rock masses

open access: yesVolcanica, 2021
Rock failure criteria are key input parameters for models designed to better understand the stability of volcanic rock masses. Cohesion and friction angle are the two defining material variables for the Mohr-Coulomb failure criterion.
Marlène C. Villeneuve, Michael J. Heap
doaj   +1 more source

Seismic vulnerability of continuous concrete bridges on different types of soil using fragility curves [PDF]

open access: yesJournal of Structural and Construction Engineering, 2019
One of the common methods for estimation of structural failures and earthquake damages is using fragility curves with probabilistic methods. In these methods, a structure such as a bridge can be classified into several structural types in terms of number
pedram omidian, Hamid Saffari
doaj   +1 more source

ANALYSIS OF INDICATORS RELIABILITY FOR AIRFIELD SYSTEMS AIR TRAFFIC CONTROL

open access: yesНаучный вестник МГТУ ГА, 2016
Discusses issues relating with reliability for aerodrome air traffic control system. Calculation of indicators of reliability for aerodrome air traffic control system consisting of: Air Traffic Control System (ATCS); radio stations; Radar Landing System (
D. S. Bondar, A. V. Prokhorov
doaj  

Engine fan case dynamic deformation and failure criteria in blade-out modelling

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The article describes the results of numerical and experimental study of dynamic deformation and rupture of aluminum plates (imitators of the engine case) hit by titanium plates (blade imitators).
A. A. Ryabov   +5 more
doaj   +1 more source

Numerical Modelling Application in the Management of Deep Mining Excavation Stresses: An Illustrative Study

open access: yesMining, 2023
Numerical modelling is an important instrument for rock engineering; it can assist in the design and prediction of failure in rock masses. Dependable results can be obtained from the models if, and only if, the underlying assumptions, strengths, and ...
Tawanda Zvarivadza
doaj   +1 more source

Determination of tensile strength of concrete and rocks by using the Brazilian test in the confrontation with the failure criteria

open access: yesBudownictwo i Architektura, 2014
The paper presents the analysis of the Brazilian compression tests considering the possibilities of determining the proper tensile strength. These analyses include the precise designation of the stress field without singularity at the point of ...
Jakub Gontarz, Jerzy Podgórski
doaj   +1 more source

SLOPE STABILITY EVALUATIONS BY FINITE ELEMENT METHODS IN DIFFERENT SOIL PROPERTIES

open access: yesDiyala Journal of Engineering Sciences, 2015
This paper deals with slope stability assessment carried out by regularly used finite element (FE) methods. The study utilizes based software (PLAXIS). The main objective obtain from this study is to simulation and analysis of slope in case of different
Jasim M. Abbas
doaj  

Experimental research and finite element analysis of elastic and strength properties of fiberglass composite material [PDF]

open access: yesИнженерно-строительный журнал, 2014
This work is devoted to the research of the strength and elastic properties of the laminated fiberglass composite. Experiments were performed on tension and compression of specimens with different orientation of the reinforcement in relation to the ...
E.A. Nekliudova   +3 more
doaj   +1 more source

Development of an on-board system for diagnosing the technical condition of the tread surface of the wheels of wagons

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The aim of the study is to develop a basic configuration of the on-board system for diagnosing the technical condition of the wheels tread surface of a wagon while the train is running and to model its operation.Materials and methods.
I. A. Gadzhiev
doaj   +1 more source

Effects of Increasing the Orthodontic Forces over Cortical and Trabecular Bone during Periodontal Breakdown—A Finite Elements Analysis

open access: yesMedicina, 2023
Background and Objectives: Herein we used numerical analysis to study different biomechanical behaviors of mandibular bone subjected to 0.6 N, 1.2 N, and 2.4 N orthodontic loads during 0–8 mm periodontal breakdown using the Tresca failure criterion ...
Radu-Andrei Moga   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy