Results 21 to 30 of about 1,214,541 (261)

Plasticity and Deformation Mechanisms of Ultrafine-Grained Ti in Necking Region Revealed by Digital Image Correlation Technique

open access: yesNanomaterials, 2021
The conventional engineering stress-strain curve could not accurately describe the true stress-strain and local deformability of the necking part of tensile specimens, as it calculates the strain by using the whole gauge length, assuming the tensile ...
Yonghao Zhao, Yanglin Gu, Yazhou Guo
doaj   +1 more source

Hydrostatic compression on polypropylene foam [PDF]

open access: yes, 2014
Models currently used to simulate the impact behaviour of polymeric foam at high strain rates use data from mechanical tests. Uniaxial compression is the most common mechanical test used, but the results from this test alone are insufficient to ...
VIOT, Philippe
core   +2 more sources

Calculations of strengthened open profile thin-walled element enclosing structures

open access: yesИнженерно-строительный журнал, 2014
This paper presents the variational calculation method for open profile thin-walled bar systems strengthened under load. The main ratios of the theory are given.
M.N. Ubaydulloyev
doaj   +1 more source

Bone Stress-Strain State Evaluation Using CT Based FEM

open access: yesFrontiers in Mechanical Engineering, 2021
Nowadays, the use of a digital prototype in numerical modeling is one of the main approaches to calculating the elements of an inhomogeneous structure under the influence of external forces. The article considers a finite element analysis method based on
Oleg V. Gerasimov   +9 more
doaj   +1 more source

High-temperature mechanical behavior of polycrystalline yttrium-doped barium cerate perovskite [PDF]

open access: yes, 2011
The high-temperature mechanical properties of the mixed ionic-electronic conductor perovskite BaCe0.95Y0.05O3-δ with average grain size of 0.40μm have been studied in compression between 1100 and 1300°C in air at different initial strain rates.
Jiménez Melendo, Manuel   +4 more
core   +1 more source

Research of the Stress-Strain State of a Mobile Overpass Structure

open access: yesCommunications
The research is aimed at solving the problem of traffic congestion during the underground repair work in cities. The goal is to develop and analyze a modular mobile overpass that ensures continuous traffic without bypassing repair areas.
Alexandr Ganyukov, Sabit S. Amanbayev
doaj   +1 more source

Analysis of stress-strain state of Caucasus region (Azerbaijan) on the basis of maximum horizontal stress vectors and "World Stress Map" application technique

open access: yesГеофизический журнал, 2017
The influence of topographic anomaly of the relief on the stress-strain state of the Caucasus lithosphere (Azerbaijan) and plotting the respective models have been considered in the paper. Stress-strain state was studied by the finite element method with
G.P. Babayev   +2 more
doaj   +1 more source

Multiscale examination of strain effects in Nd-Fe-B permanent magnets

open access: yes, 2017
We have performed a combined first-principles and micromagnetic study on the strain effects in Nd-Fe-B magnets. First-principles calculations on Nd2Fe14B reveal that the magnetocrystalline anisotropy (K) is insensitive to the deformation along c axis and
Gutfleisch, Oliver   +3 more
core   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Stress-strain state of a combined toroidal baromembrane apparatus

open access: yesAdvanced Engineering Research, 2021
Introduction. Currently, the purification of wastewater and technological solutions by membrane methods is considered a promising way to neutralize liquid waste. Therefore, the task of developing an engineering method for calculating baromembrane devices
S. I. Lazarev   +3 more
doaj   +1 more source

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