scholarly journals Analysis of the Elastic-plastic Properties of Metallic Materials by Instrumented Spherical Indentation Testing

2011 ◽  
Vol 10 ◽  
pp. 1679-1684
Author(s):  
M. Beghinf ◽  
L. Bertinf ◽  
V. Fontanari ◽  
B.D. Monelli
Keyword(s):  
Spherical Indentation ◽  
Metallic Materials ◽  
Indentation Testing ◽  
Plastic Properties ◽  
Elastic Plastic

scholarly journals Spherical indentation method for estimating equibiaxial residual stress and elastic–plastic properties of metals simultaneously

2018 ◽  
Vol 33 (8) ◽  
pp. 884-897 ◽  
Author(s):  
Guangjian Peng ◽  
Zhike Lu ◽  
Yi Ma ◽  
Yihui Feng ◽  
Yong Huan ◽  
...  
Keyword(s):  
Residual Stress ◽  
Spherical Indentation ◽  
Indentation Method ◽  
Plastic Properties ◽  
Elastic Plastic ◽  
Image Position

Abstract

scholarly journals Dual flat-spherical indentation for extracting elastic-plastic properties from rough metallic surfaces

2021 ◽  
pp. 109909
Author(s):  
Karuppasamy Pandian Marimuthu ◽  
Soowan Park ◽  
Uihwan Jeong ◽  
Hyungyil Lee
Keyword(s):  
Spherical Indentation ◽  
Metallic Surfaces ◽  
Plastic Properties ◽  
Elastic Plastic

Identification of elastic-plastic properties of metal materials by using the residual imprint of spherical indentation

2017 ◽  
Vol 679 ◽  
pp. 143-154 ◽  
Author(s):  
Mingzhi Wang ◽  
Jianjun Wu ◽  
Yu Hui ◽  
Zengkun Zhang ◽  
Xuepeng Zhan ◽  
...  
Keyword(s):  
Spherical Indentation ◽  
Plastic Properties ◽  
Elastic Plastic ◽  
Metal Materials

scholarly journals Finite Pure Plane Strain Bending of Inhomogeneous Anisotropic Sheets

Symmetry ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 145
Author(s):  
Sergei Alexandrov ◽  
Elena Lyamina ◽  
Yeong-Maw Hwang
Keyword(s):  
Plane Strain ◽  
Yield Criterion ◽  
Large Strains ◽  
Rigid Plastic ◽  
Plastic Properties ◽  
Elastic Plastic ◽  
Starting Point ◽  
The Difference ◽  
Inside Radius ◽  
Elastic Unloading

The present paper concerns the general solution for finite plane strain pure bending of incompressible, orthotropic sheets. In contrast to available solutions, the new solution is valid for inhomogeneous distributions of plastic properties. The solution is semi-analytic. A numerical treatment is only necessary for solving transcendent equations and evaluating ordinary integrals. The solution’s starting point is a transformation between Eulerian and Lagrangian coordinates that is valid for a wide class of constitutive equations. The symmetric distribution relative to the center line of the sheet is separately treated where it is advantageous. It is shown that this type of symmetry simplifies the solution. Hill’s quadratic yield criterion is adopted. Both elastic/plastic and rigid/plastic solutions are derived. Elastic unloading is also considered, and it is shown that reverse plastic yielding occurs at a relatively large inside radius. An illustrative example uses real experimental data. The distribution of plastic properties is symmetric in this example. It is shown that the difference between the elastic/plastic and rigid/plastic solutions is negligible, except at the very beginning of the process. However, the rigid/plastic solution is much simpler and, therefore, can be recommended for practical use at large strains, including calculating the residual stresses.

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