Results 31 to 40 of about 11,724 (273)

A Comparative Study of Three Constitutive Models concerning Thermo-Mechanical Behavior of Q345 Steel during Hot Deformation

open access: yesCrystals, 2022
The Gleeble-3800 thermal simulator was used to perform hot compression experiments on Q345 steel at a temperature of 1123~1373 K, a strain rate of 0.01~10 s−1, and 60% deformation.
Guanghui Zhao   +5 more
doaj   +1 more source

Correction of Flow Curves and Constitutive Modelling of a Ti-6Al-4V Alloy

open access: yesMetals, 2018
Isothermal uniaxial compressions of a Ti-6Al-4V alloy were carried out in the temperature range of 800–1050 °C and strain rate range of 0.001–1 s−1. The effects of friction between the specimen and anvils as well as the increase in temperature caused by ...
Ming Hu   +5 more
doaj   +1 more source

Finite element simulations of rail milling based on the modified Johnson-Cook constitutive model

open access: yesJournal of Physics: Conference Series, 2021
Abstract Rail milling plays an indispensable role to remove surface defects and irregularity in the railway maintenance industry. In this paper, an appropriate 2D orthogonal cutting model of rail milling process was established. Finite element simulations of rail milling were conducted in detail based on a modified Johnson-Cook ...
Peijie Liu, Yanming Quan, Junjie Wan
openaire   +1 more source

The Comparation of Arrhenius-Type and Modified Johnson–Cook Constitutive Models at Elevated Temperature for Annealed TA31 Titanium Alloy

open access: yes, 2022
Constitutive models play a significant role in understanding the deformation behavior of materials and in optimizing the manufacturing process. In order to improve the reliability of calculation results, the high temperature flow behavior of TA31 ...
Min Zhao   +6 more
core   +1 more source

Compression properties and constitutive model of short glass fiber reinforced poly-ether-ether-ketone (PEEK)

open access: yesScientific Reports, 2023
To analyze the deformation behavior of short glass fiber-reinforced poly-ether-ether-ketone (SGFR-PEEK) under various conditions through numerical simulations, it is crucial to construct a constitutive model that can describe its stress–strain behavior ...
Ruijie Zhang   +4 more
doaj   +1 more source

Investigation on Fragmentation of Pyrophoric Alloy Samples during Taylor Test Using SPH [PDF]

open access: yesEPJ Web of Conferences, 2021
This study is the first part of a project that aims to assess and model impact-induced energy release (IIER). The present part of the work investigates the failure mode of brittle commercial pyrophoric alloy samples during Taylor impact tests.
Santamaria Ferraro Evaristo   +2 more
doaj   +1 more source

Plasticity and fracture of aluminium 7075 at high strain rates and elevated temperatures [PDF]

open access: yesEPJ Web of Conferences, 2021
Slow, intermediate and high strain rate experiments with UT geometries are performed on aluminum AA7075-T6 sheet metal at various temperatures. The comprehensive experimental program characterizes the plasticity response at temperatures ranging from 20°C
Li Xueyang   +4 more
doaj   +1 more source

Quasi-Static Loading Responses and Constitutive Modeling of Al–Si–Mg alloy

open access: yesMetals, 2018
The flow behavior of the Al–Si–Mg alloy under uniaxial compression loading was investigated at different strain rates (10−3 s−1, 10−2 s−1,10−1 s−1, 100 s−1) at a wide range of temperatures (573 K, 623
Zhenglong Liang, Qi Zhang
doaj   +1 more source

Interpolation and Extrapolation Performance Measurement of Analytical and ANN-Based Flow Laws for Hot Deformation Behavior of Medium Carbon Steel

open access: yesMetals, 2023
In the present work, a critical analysis of the most-commonly used analytical models and recently introduced ANN-based models was performed to evaluate their predictive accuracy within and outside the experimental interval used to generate them. The high-
Pierre Tize Mha   +4 more
doaj   +1 more source

A Study of the Dynamic Mechanical Properties of Q460D Steel

open access: yesMetals, 2023
The dynamic mechanical properties of Q460D steel were studied to facilitate an assessment of the impact resistance of building structures. In the present work, material performance tests of Q460D steel at different temperatures, strain rates, and stress ...
Bo Huang   +4 more
doaj   +1 more source

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