scholarly journals Research on aluminum alloy sheet thermoplastic deformation behavior based upon warm bulging test

AIP Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 025023 ◽  
Author(s):  
Gaoshen Cai ◽  
Xiaojun Zhou ◽  
Lihui Lang ◽  
Sergei Alexandrov
Keyword(s):  
Aluminum Alloy ◽  
Deformation Behavior ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Behavior Based ◽  
Bulging Test

Research on the effect of flow stress calculation on aluminum alloy sheet deformation behavior based on warm bulging test

2015 ◽  
Vol 21 (2) ◽  
pp. 365-373 ◽  
Author(s):  
Gaoshen Cai ◽  
Lihui Lang ◽  
Kangning Liu ◽  
Sergei Alexandrov ◽  
Dongxing Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Flow Stress ◽  
Deformation Behavior ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Stress Calculation ◽  
Behavior Based ◽  
Bulging Test ◽  
Sheet Deformation

Numerical Analysis for Process Parameter Effect in Electromagnetic Impact Welding of Aluminum Alloy Sheet

2014 ◽  
Vol 548-549 ◽  
pp. 297-300
Author(s):  
Dae Yong Kim ◽  
Hyeon Il Park ◽  
Ji Hoon Kim ◽  
Sang Woo Kim ◽  
Young Seon Lee
Keyword(s):  
Aluminum Alloy ◽  
Numerical Analysis ◽  
Deformation Behavior ◽  
Three Dimensional ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Sheet Metals ◽  
Charge Voltage ◽  
Flat Sheet ◽  
Impact Welding

Studies on electromagnetic impact welding between similar or dissimilar flat sheet metals using the flat one turn coil have been recently achieved. In this study, three dimensional electromagnetic-mechanical coupled numerical simulations are performed for the electromagnetic impact welding of aluminum alloy sheets with flat rectangular one turn coil. The deformation behavior during impact welding was examined. The effect of process parameters such as charge voltage, standoff distance and gap distance were investigated.

scholarly journals Hot Deformation Behavior of a 2024 Aluminum Alloy Sheet and its Modeling by Fields-Backofen Model Considering Strain Rate Evolution

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 243 ◽  
Author(s):  
Zhubin He ◽  
Zhibiao Wang ◽  
Yanli Lin ◽  
Xiaobo Fan
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Deformation Behavior ◽  
Strain Distribution ◽  
Tensile Tests ◽  
Alloy Sheet ◽  
Image Correlation ◽  
Aluminum Alloy Sheet ◽  
2024 Aluminum Alloy ◽  
Local Flow

The deformation behavior of a 2024 aluminum alloy sheet at elevated temperatures was studied by uniaxial hot tensile tests over the nominal initial strain rate range of 0.001–0.1 s−1 and temperature range of 375–450 °C. In order to analyze the deformation behavior with higher accuracy, a digital image correlation (DIC) system was applied to determine the strain distribution during hot tensile tests. Local stress-strain curves for different local points on the specimens were calculated. The strain rate evolution of each point during the tensile tests was investigated under different deformation conditions. Then, an improved Fields–Backofen (FB) model, taking into account the local strain rate evolution instead of the fixed strain rate, was proposed to describe the constitutive behaviors. It has been found that obvious non-uniform strain distribution occurred when the true strain was larger than 0.3 during hot tensile tests. The strain rate distribution during deformation was also non-uniform. It showed increasing, steady, and decreasing variation tendencies for different points with the increasing of strain, which led to the local flow stress being different at different local points. The flow stresses predicted by the improved FB model showed good agreement with experimental results when the strain rate evolutions of local points during tensile tests were considered. The prediction accuracy was higher than that of traditional FB models.

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