Results 11 to 20 of about 11,724 (273)

Dynamic constitutive relationship of CuCrZr alloy based on Johnson-Cook model

Nuclear Materials and Energy, 2020
CuCrZr alloy has been acknowledged as one of the most promising candidate materials for the heat sink of plasma facing components in nuclear fusion devices with its excellent thermal conductivity and specific mechanical strength.
Xinyuan Qian, Xuebing Peng, Yuntao Song, Jianjun Huang, Yanpeng Wei, Peng Liu, Xin Mao, Jianwu Zhang, Liang Wang   +8 more
doaj   +3 more sources

Comparison of Johnson-Cook and modified Johnson-Cook material constitutive models and their influence on finite element modelling of Ti6Al4V orthogonal cutting process [PDF]

AIP Conference Proceedings, 2019
Titanium alloys such as Ti6Al4V are widely used and are well known as hard-to-machine material. The material behavior that is described by the constitutive equation plays a pivotal role in modeling and simulation of machining process. The Johnson–Cook material model is widely used for analysis of material flow stress, especially for those materials ...
Kugalur Palanisamy, Nithyaraaj, Rivière, Edouard, Pedro, Arrazola, Ducobu, François   +3 more
openaire   +3 more sources

A constitutive relation of AZ80 magnesium alloy during hot deformation based on Arrhenius and Johnson–Cook model

Journal of Materials Research and Technology, 2019
In order to understand the constitutive behavior of as-cast AZ80 with large grain size, the uniaxial hot compression tests were carried out over a series of isothermal upsetting experiments. The maximum deformation degree was 65%.
Xingrui Chen, Qiyu Liao, Yanxia Niu, Weitao Jia, Qichi Le, Chunlong Cheng, Fuxiao Yu, Jianzhong Cui   +7 more
doaj   +2 more sources

A Modified Johnson–Cook Model and Microstructure Evolution of As-Extruded AA 2055 Alloy during Isothermal Compression

Metals, 2022
Isothermal compression behaviors of as-extruded AA 2055 alloy (T6 state) were studied at temperature of 320, 380, 440 and 500 °C with strain rate of 0.001, 0.01, 0.1 and 1 s−1 by a Gleeble-3800 testing machine.
Dongmei Jiang, Jian Zhang, Tiejun Liu, Wei Li, Zhong Wan, Tingzhuang Han, Chaojie Che, Liren Cheng   +7 more
doaj   +2 more sources

Modification of the Johnson–Cook Material Model for Improved Simulation of Hard Milling High-Performance Steel Components

Applied Mechanics, 2021
Understanding the effect of thermomechanical loads during finish cutting processes, in our case hard milling, on the surface integrity of the workpiece is crucial for the creation of defined quality characteristics of high-performance components ...
Andrey Vovk, Amin Pourkaveh Dehkordi, Rainer Glüge, Bernhard Karpuschewski, Jens Sölter   +4 more
doaj   +2 more sources

A Comparative Study on Arrhenius and Johnson–Cook Constitutive Models for High-Temperature Deformation of Ti₂AlNb-Based Alloys

Metals, 2019
In order to thoroughly understand the quantitative relationships between the flow stress and deformation conditions for Ti2AlNb-based alloys at elevated temperatures, the Arrhenius and Johnson⁻Cook constitutive models are analyzed and identified on
Zhubin He, Zhibiao Wang, Peng Lin
doaj   +2 more sources

Calibration of a modified Johnson-Cook model using the Virtual Fields Method and a heterogeneous thermo-mechanical tensile test [PDF]

International Journal of Mechanical Sciences, 2021
Abstract Classical calibration procedures for phenomenological thermo-elasto-viscoplastic constitutive models usually involve a large number of tests to identify all the material parameters, leading to long experimental campaigns. In the present work, a novel calibration methodology that takes full advantage of full-field measurements of a ...
Martins, João, Thuillier, Sandrine, Andrade-Campos, António   +2 more
openaire   +5 more sources

DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS

Jixie qiangdu, 2022
In order to study the dynamic mechanical properties of SUS304 stainless steel commonly used in rail vehicles, tensile tests under wide strain rates of 0.000 2 s-1～500 s-1 were carried out respectively.
LIU YuXin, ZHU Tao, XIAO ShouNe, YANG GuangWu, YANG Bing, WANG MingMeng   +5 more
doaj   +2 more sources

Johnson–Cook Constitutive Model Parameters Estimation of 22MnB5 Hot Stamping Steel for Automotive Application Produced via the TSCR Process

Metals
In the industrial practice of metal forming, the consistent and reasonable characterization of the material behavior under the coupling effect of strain, strain rate, and temperature on the material flow stress is very important for the design and ...
Yuxin Song, Yaowen Xu, Gengwei Yang
doaj   +2 more sources

Comparison of Modified Johnson–Cook Model and Strain–Compensated Arrhenius Constitutive Model for 5CrNiMoV Steel during Compression around Austenitic Temperature

Metals, 2022
Isothermal compression behaviors of 5CrNiMoV steel were studied at temperatures of 870, 800, 750, and 700 °C, with strain rates of 0.001, 0.005, 0.01, 0.05, and 0.1 s−1, the compression temperatures 870 and 800 °C are above Ac3, as well as 750 and 700 °C
Hengyong Bu, Qin Li, Shaohong Li, Mengnie Li   +3 more
doaj   +2 more sources