Residual stress measurement on propellant tank of 2219 aluminum alloy and study on its weak spot

2017 ◽  
Vol 31 (5) ◽  
pp. 2213-2220 ◽  
Author(s):  
Chaoqun Huang ◽  
Huan Li ◽  
Jianxiong Li ◽  
Chuanguang Luo ◽  
Yanbing Ni
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Weak Spot ◽  
2219 Aluminum Alloy ◽  
Propellant Tank

The Use of Renka Cline Algorithm in X-Ray Diffraction Residual Stress Measurement

2014 ◽  
Vol 881-883 ◽  
pp. 1846-1850
Author(s):  
Chun Guang Li ◽  
Zhong Chen Dai ◽  
Zhong Huang Yun ◽  
Dong Feng Li ◽  
Xing Hua Cao
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Welded Joints ◽  
Reliable Method ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
X Ray Diffraction ◽  
X Ray ◽  
Longitudinal Residual Stress

Using the Renka Cline algorithm provided by OriginPro8.6 to fit the longitudinal residual stress through parts of the measurement value on the A7N01-T5 aluminum alloy butt welded joints compared with the whole measurement value. The result shows that the fitting value approximates the measurement value. The fitting value is reliable. So, Renka Cline algorithm is a reliable method to analyze the longitudinal residual stress on a plate region.

Internal Residual Stress Measurement of Aluminum Alloy Castings Using Neutron Diffraction

2012 ◽  
Vol 5 (2) ◽  
pp. 446-451 ◽  
Author(s):  
Yumi Kubota ◽  
Jun Kubo ◽  
Keitaro Ishida ◽  
Akinori Okada ◽  
Minoru Yoshida ◽  
...  
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Neutron Diffraction ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Alloy Castings

Reliability Analysis on Errors of Measuring Residual Stress in 7050 Aluminum Alloy with X-Ray Diffraction

2011 ◽  
Vol 105-107 ◽  
pp. 1867-1871
Author(s):  
Ai Xin Feng ◽  
Bin Li ◽  
Chuan Chao Xu ◽  
Jun Wei Wang ◽  
Zhen Chun Han ◽  
...  
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Measurement ◽  
Residual Stress Distribution ◽  
Least Square ◽  
Residual Stress Measurement ◽  
Material Surface ◽  
X Ray Diffraction ◽  
X Ray ◽  
7050 Aluminum Alloy

The error distribution of residual stress tested by X-ray diffraction on 7050 aluminum alloy was studied. In this paper, residual stress was measured, independently and repeatedly, many times on 7050 aluminum alloy with X-ray diffraction, then the errors about 50 stress values within the range of 30MPa were analyzed by the hypothesis testing. The results indicate that the errors of the residual stress measurement on 7050 aluminum alloy were followed the law of normal distribution about and the errors can be estimated by the least square calculator. The research lays the foundation to subsequent researches on the inherent law of the residual stress measurement with X-ray diffraction and the residual stress distribution and accuracy of stress of material surface.

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