Test Method for Plastic Strain Ratio r for Sheet Metal

1998 ◽  
Author(s):  
Keyword(s):  
Plastic Strain ◽  
Sheet Metal ◽  
Strain Ratio ◽  
Test Method ◽  
Plastic Strain Ratio

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

Relevant Cubic Grain Plank Plastic Strain Ratio (R) the Theory Research and Experiment

2011 ◽  
Vol 243-249 ◽  
pp. 5999-6002
Author(s):  
Wen Xia Yue ◽  
Lang Wu ◽  
Li Min Cheng
Keyword(s):  
Plastic Strain ◽  
Sheet Metal ◽  
Function Theory ◽  
Strain Ratio ◽  
Metal Sheet ◽  
Quadratic Functions ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Tensor Function ◽  
Plastic Strain Ratio

This paper shows that different materials have different quadratic functions, tensor function theory can make the function of history to represent the plastic strain, which can be a sheet metal pressing does uniaxial tensile test show that the plane of sheet metal, sheet metal specimen axis and the angle between the rolling direction changes, to the metal plastic strain ratio (R) along with the changes. To explain this phenomenon, the introduction of a quadratic yield function to describe the experimental results of some of the metal sheet. This paper shows that different materials have different quadratic functions, tensor function theory can make the function of history to represent the plastic strain, which can be a sheet metal pressing does not depend on the value of history.

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