Strain-rate Dependent Tensile Failure Behavior of 7075 Aluminum Alloy Sheet at Elevated Temperatures

2021 ◽  
Vol 45 (2) ◽  
pp. 113-121
Author(s):  
Donghoon Yoo ◽  
Jonghwa Hong ◽  
Yong Nam Kwon ◽  
Ji Hoon Kim ◽  
Daeyong Kim
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Elevated Temperatures ◽  
Alloy Sheet ◽  
Tensile Failure ◽  
Failure Behavior ◽  
7075 Aluminum Alloy ◽  
Aluminum Alloy Sheet ◽  
Rate Dependent

Analysis of Nonisothermal Deep Drawing of Aluminum Alloy Sheet With Induced Anisotropy and Rate Sensitivity at Elevated Temperatures

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Kamyar Ghavam ◽  
Reza Bagheriasl ◽  
Michael J. Worswick
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Deep Drawing ◽  
Elevated Temperatures ◽  
Tensile Tests ◽  
Alloy Sheet ◽  
Material Behavior ◽  
Aluminum Alloy Sheet ◽  
Rate Dependency ◽  
Strain Rate Dependency

In this paper, a finite element model is developed for 3000 series clad aluminum alloy brazing sheet to account for temperature and strain rate dependency, as well as plastic anisotropy. The current work considers a novel implementation of the Barlat YLD2000 yield surface in conjunction with the Bergstrom hardening model to accurately model aluminum alloy sheet during warm forming. The Barlat YLD2000 yield criterion is used to capture the anisotropy while the Bergstrom hardening rule predicts the temperature and strain rate dependency. The results are compared with those obtained from experiments. The measured stress–strain curves of the AA3003 aluminum alloy sheet at elevated temperatures and different strain rates are used to fit the Bergstrom parameters and measured R-values and directional yield stresses are used to fit the yield function parameters. Isothermal uniaxial tensile tests and nonisothermal deep drawing experiments are performed and the predicted response using the new constitutive model is compared with measured data. In simulations of tensile tests, the material behavior is predicted accurately by the numerical models. Also, the nonisothermal deep drawing simulations are able to predict the load–displacement response and strain distributions accurately.

Study on the Formability of Aluminium Alloy Sheets at Room and Elevated Temperatures

2016 ◽  
Vol 877 ◽  
pp. 393-399
Author(s):  
Jia Zhou ◽  
Jun Ping Zhang ◽  
Ming Tu Ma
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Elevated Temperature ◽  
Aluminium Alloy ◽  
Aluminium Alloys ◽  
Elevated Temperatures ◽  
Hot Stamping ◽  
Natural Aging ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet

This paper presents the main achievements of a research project aimed at investigating the applicability of the hot stamping technology to non heat treatable aluminium alloys of the 5052 H32 and heat treatable aluminium alloys of the 6016 T4P after six months natural aging. The formability and mechanical properties of 5052 H32 and 6016 T4P aluminum alloy sheets after six months natural aging under different temperature conditions were studied, the processing characteristics and potential of the two aluminium alloy at room and elevated temperature were investigated. The results indicated that the 6016 aluminum alloy sheet exhibit better mechanical properties at room temperature. 5052 H32 aluminum alloy sheet shows better formability at elevated temperature, and it has higher potential to increase formability by raising the temperature.

High strain rate tensile testing of automotive aluminum alloy sheet

2005 ◽  
Vol 32 (1-4) ◽  
pp. 541-560 ◽  
Author(s):  
R. Smerd ◽  
S. Winkler ◽  
C. Salisbury ◽  
M. Worswick ◽  
D. Lloyd ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Tensile Testing ◽  
High Strain ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet

Microstructure and Texture Evolution of 2024 Aluminum Alloy Sheet under Different Loading Conditions

2018 ◽  
Vol 920 ◽  
pp. 236-243
Author(s):  
Peng Zhou ◽  
Lei Deng ◽  
Xin Yun Wang
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Tensile Deformation ◽  
Texture Evolution ◽  
Deformation Texture ◽  
Alloy Sheet ◽  
Loading Conditions ◽  
Aluminum Alloy Sheet ◽  
2024 Aluminum Alloy ◽  
Goss Texture

To study microstructure and texture evolution of 2024 aluminum alloy sheet under different loading conditions, thermal tensile and compression experiments of 2024 aluminum alloy rolled sheets were carried out at temperatures ranging from 300 °C to 450 °C and under strain rates ranging from 0.001 s-1 to 0.1 s-1. During tensile deformation, the HABs of original grains are directly elongated until abruption. DRX process occurs during compression. Dislocations appear during deformation, migrate and accumulate into LABs, and then rotate into HABs to form new grain.The three-dimensional orientation distribution functions (ODFs) in different stress states were measured, with related texture types and distribution laws compared. According to ODFs with a constant φ2, the deformation texture of {011} <100>Goss texture is gradually strengthened during thermal tension at high temperature and low strain rate (450°C/0.001s-1). The deformation texture of {011} <100>Goss texture is weakened with the strain increasing. Furthermore, the increase of deformation temperature or the decrease of strain rate slows down the weakening process of {011} <100> Goss texture, which is attributed to the recrystallization behavior during tensile deformation. Besides, since the recrystallization process proceeds more completely during hot compression, it produces a quasi-random texture.

Yield and strain rate potentials for aluminum alloy sheet forming design

1998 ◽  
Vol 4 (4) ◽  
pp. 931-938 ◽  
Author(s):  
Kwansoo Chung ◽  
Frédéric Barlat ◽  
Jeong-Whan Yoon ◽  
Owen Richmond ◽  
John C. Brem ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Sheet Forming ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet
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