Results 51 to 60 of about 17,460 (261)

Finite element modelling for temperature, stresses and strains calculation in linear friction welding of TB9 titanium alloy

Journal of Materials Research and Technology, 2019
In the present paper, finite element method (FEM) simulation of linear friction welding (LFW) TB9 titanium alloy was carried out using ABAQUS software.
Xiawei Yang, Wenya Li, Ying Fu, Qing Ye, Yaxin Xu, Xiurong Dong, Kaiwei Hu, Yangfan Zou   +7 more
doaj   +1 more source

A Modified Johnson-Cook Model for Ferritic-Pearlitic Steel in Dynamic Strain Aging Regime [PDF]

Metals, 2019
In this study, the flow stress behavior of ferritic-pearlitic steel (C45E steel) is investigated through isothermal compression testing at different strain rates (1 s−1, 5 s−1, and 60 s−1) and temperatures ranging from 200 to 700 °C. The stress-strain curves obtained from experimental testing were post-processed to obtain true stress-true plastic ...
Ashwin Moris Devotta, P. V. Sivaprasad, Tomas Beno, Mahdi Eynian, Kjell Hjertig, Martin Magnevall, Mikael Lundblad   +6 more
openaire   +4 more sources

Johnson-Cook model for TC4 titanium alloy based on compression experiment

Metalurgija, 2022
To obtain the exact mechanical properties of TC4 titanium alloy, the compression experiments on TC4 titanium alloy at different strain rates (10-2,10-3,10-4 s-1) were performed at room-temperature on the MTS-810 electrohydraulic servo material testing ...
Z. L. Zhao, H. C. Ji, J. M. Zhao, B. X. Liu, W. C. Pei   +4 more
doaj  

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

The modified temperature term on Johnson-Cook constitutive model of AZ31 magnesium alloy with {0002} texture

Journal of Magnesium and Alloys, 2020
The dynamic compression experiments with Split-Hopkinson Pressure Bar(SHPB) were performed on AZ31 magnesium alloy rolled sheet specimens in the normal direction (AZ31-ND) with {0002} texture at the temperature of 293–523 K and the strain rate of 0.001 ...
Feng Zhang, Zheng Liu, Yue Wang, Pingli Mao, Xinwen Kuang, Zhenglai Zhang, Yingdong Ju, Xiaozhong Xu   +7 more
doaj   +1 more source

Tough Injectable Hydrogels Enabled by Integrating Rigid Homogeneous Framework With Flexible Chains

Advanced Functional Materials, EarlyView.
Tough injectable hydrogels are constructed by integrating a rigid, homogeneous hyaluronic acid framework with flexible long‐chain connectors. This framework–flexible structure simultaneously enhances network uniformity and promotes effective energy dissipation by enlarging plastic deformation zones under compression.
Rijian Song, Runqi Zhu, Cameron Milne, Melissa Johnson, Chunyu Zhao, Qiang Geng, Yinghao Li, Jing Lyu, Qiang Li, Sigen A, Wenxin Wang   +10 more
wiley   +1 more source

A study of johnson-cook modeling under transient shocks

Journal of Physics: Conference Series
Abstract In the field of aerospace, high-strain rate problems such as shock explosions have always been a major research challenge. TC4 titanium alloy is a commonly used alloy in aerospace. To study its mechanical properties and the intrinsic model in transient shock environments.
Jie Xue, Jun Wang, Ruoqin Xiong, Weilin Dong, Heng Zhang, Jun Liu, Xiaoliang Geng   +6 more
openaire   +1 more source

Residual‐Lithium‐to‐LiF Conversion Enables a LiF–Fluorinated Carbon Interphase for Reconstruction‐Resistant Ni‐Rich Cathodes

Advanced Functional Materials, EarlyView.
A fluorine‐rich acrylate monomer (PFHEA) was solvent‐free applied to NCM90 and thermally decomposed under Ar to convert residual lithium into LiF and form a pre‐built LiF/fluorinated amorphous carbon (LiF/FC) interphase. The LiF/FC layer suppresses NiO rock‐salt reconstruction and microcrack propagation, lowers interfacial resistance, and improves Li ...
Pangyu Kim, Juyeon Han, Junhyeok Kim, Younghoon Kim, Eunha Seo, Dain Kim, Jeeyoung Yoo   +6 more
wiley   +1 more source