Numerical Study of Plasticity Effects on High Residual Stress Measurement Using Ring-Core Technique

2018 ◽  
Vol 47 (6) ◽  
pp. 20160581 ◽  
Author(s):  
R. Moharrami ◽  
M. Sadri
Keyword(s):  
Residual Stress ◽  
Stress Measurement ◽  
Numerical Study ◽  
Residual Stress Measurement ◽  
High Residual Stress ◽  
Ring Core

scholarly journals Residual stress measurement in thin films using the semi-destructive ring-core drilling method using Focused Ion Beam

2011 ◽  
Vol 10 ◽  
pp. 2190-2195 ◽  
Author(s):  
X. Song ◽  
K.B. Yeap ◽  
J. Zhu ◽  
J. Belnoue ◽  
M. Sebastiani ◽  
...  
Keyword(s):  
Thin Films ◽  
Residual Stress ◽  
Focused Ion Beam ◽  
Stress Measurement ◽  
Ion Beam ◽  
Residual Stress Measurement ◽  
Core Drilling ◽  
Drilling Method ◽  
Ring Core

scholarly journals Residual Stress Measurement on Large Shafts

2014 ◽  
Vol 996 ◽  
pp. 295-300
Author(s):  
Jaroslav Václavík ◽  
Otakar Weinberg
Keyword(s):  
Residual Stress ◽  
Czech Republic ◽  
Residual Stresses ◽  
Strain Gauge ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Hole Drilling ◽  
Ring Core

The review and some experiences are given from measurement and evaluations of residual stresses on large shaft forgings and rail axles using the hole-drilling and ring-core strain-gauge methods, provided by Pilsner Research and Testing Institute, Czech Republic.

scholarly journals Hole-Drilling Strain-Gauge Method: Residual Stress Measurement With Plasticity Effects

2009 ◽  
Vol 132 (1) ◽  
Author(s):  
D. Vangi ◽  
S. Tellini
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Strain Gauge ◽  
Stress Measurement ◽  
Numerical Study ◽  
Test Method ◽  
Material Behavior ◽  
Residual Stress Measurement ◽  
Hole Drilling ◽  
Astm E837

When measuring residual stresses using the hole-drilling strain-gauge method, plasticity effects arise if the residual stress level exceeds about 60% of the material yield strength. In this case the classical methods, which are based on the linear elastic material behavior, do not work properly and residual stresses are overestimated. This paper presents a numerical study of the influence of plasticity on residual stress measurement by using the hole-drilling strain-gauge method in those cases in which stress does not vary with depth. The study investigates the effects of the most important loading, measuring, geometry, and material variables. An iterative method, which can be applied to obviate these errors, is then presented. The method was implemented in ANSYS using the APDL macrolanguage (ANSYS Parametric Design Language Guide, Documentation for ansys 11.0) to automatically execute the procedure steps. A finite element model of the hole, which allows for plasticity, is requested. Employing the readings of a standard three elements strain-gauge rosette, the method makes it possible to extend the measurement limit in comparison to that of the ASTM E837 standard (ASTM E837-08, “Standard Test Method for Determining Residual Stresses by the Hole-Drilling Strain-Gauge Method”).

Noise-insensitive contour method for residual stress measurement in laser butt welding

2021 ◽  
Vol 165 ◽  
pp. 107861
Author(s):  
Hao Jiang ◽  
Junjun Liu ◽  
Zhenkun Lei ◽  
Ruixiang Bai ◽  
Zhenfei Guo ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Contour Method ◽  
Butt Welding
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