Compensation of elastic strains in the determination of plastic strain ratio (R) in sheet metals

2005 ◽  
Vol 397 (1-2) ◽  
pp. 153-156 ◽  
Author(s):  
A. Chamanfar ◽  
R. Mahmudi
Keyword(s):  
Plastic Strain ◽  
Strain Ratio ◽  
Sheet Metals ◽  
Plastic Strain Ratio ◽  
Elastic Strains

Manual and Automatic Determination of the Plastic Strain Ratio

2013 ◽  
Vol 55 (6) ◽  
pp. 483-486
Author(s):  
András Bocz ◽  
Dénes Márkus ◽  
Zsolt Narancsik
Keyword(s):  
Plastic Strain ◽  
Strain Ratio ◽  
Automatic Determination ◽  
Plastic Strain Ratio

On the determination of Hill’s plastic strain ratio

1983 ◽  
Vol 14 (12) ◽  
pp. 2566-2567 ◽  
Author(s):  
Y. C. Liu
Keyword(s):  
Plastic Strain ◽  
Strain Ratio ◽  
Plastic Strain Ratio

Hill’s plastic strain ratio of sheet metals

1985 ◽  
Vol 16 (8) ◽  
pp. 1531-1535 ◽  
Author(s):  
Y. C. Liu ◽  
L. K. Johnson
Keyword(s):  
Plastic Strain ◽  
Strain Ratio ◽  
Sheet Metals ◽  
Plastic Strain Ratio

Effect of Cu Content on the Formability and Portevin-Le Chatelier Effect of Al-Mg Alloys

2015 ◽  
Vol 817 ◽  
pp. 150-157
Author(s):  
Peng Cheng Ma ◽  
Di Zhang ◽  
Lin Zhong Zhuang ◽  
Ji Shan Zhang
Keyword(s):  
Plastic Strain ◽  
Stress Drop ◽  
Strain Ratio ◽  
Mg Alloys ◽  
Dynamic Strain ◽  
Strain Hardening Exponent ◽  
Drawing Ratio ◽  
Plastic Strain Ratio ◽  
Cu Content ◽  
Al Mg Alloys

Al-Mg alloys developed for auto body sheets with different Cu contents were fabricated in the laboratory scale. The effects of Cu content on the microstructures, formability and Portevin–Le Chatelier(PLC) effect of the alloys were investigated by polarizied optical microscopy and room temperature tensile testing. It has been found that with increasing Cu content, there was little change of the strain hardening exponent, but the plastic strain ratio and limiting drawing ratio increased firstly and then decreased. A quantitative statistical analysis of the characteristics of the PLC effect was made, including the stress drop and the reloading time, which follow a common linear relationship with plastic strain, and the increase rate of stress drop and reloading time was bigger with more Cu content. A detailed discussion of the corresponding mechanism of Cu and Cu-containing precipitates on the dynamic strain aging(DSA) was made.

Determining Plastic Strain Ratio of Sheet Metal Based on Stereo Vision

2010 ◽  
Vol 30 (12) ◽  
pp. 3515-3523
Author(s):  
叶南 Ye Nan ◽  
张丽艳 Zhang Liyan
Keyword(s):  
Plastic Strain ◽  
Sheet Metal ◽  
Stereo Vision ◽  
Strain Ratio ◽  
Plastic Strain Ratio
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