Analysis of hot forward-backward extrusion by the visco-plastic finite-element method

1993 ◽  
Vol 38 (1-2) ◽  
pp. 103-113 ◽  
Author(s):  
Yong-Ming Guo ◽  
Yasuto Yokouchi ◽  
Hideo Suzuki
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Backward Extrusion ◽  
Element Method

Study of Forging Process of Yttrium-Modified A356 Aluminum Alloy and Numerical Simulation by Thermo-Viscoplastic Finite Element Method

2016 ◽  
Vol 701 ◽  
pp. 177-181 ◽  
Author(s):  
Heng Keong Kam ◽  
Chan Chin Wang ◽  
Ying Pio Lim ◽  
Wen Chiet Cheong
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Solid State ◽  
A356 Aluminum Alloy ◽  
Backward Extrusion ◽  
A356 Aluminum ◽  
Semi Solid ◽  
Element Method

In this study, A356 aluminum alloy was heated up to semi-solid state and used as a billet for forward and backward extrusion. The workpiece will undergo solidification at the contact between billet and the tools when the material flowing through the die cavity during the semi-solid extrusion. The plasticity of A356 with 0.3wt% Y at semi-solid state was investigated by performing compression test. A numerical simulation code based on thermo-viscoplastic finite element method was developed to simulate the material flow and study the yttrium-modified A356 aluminum alloy under forward and backward extrusion. A minimum average punch strain rate is proposed for semi-solid extrusion.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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