Journal of Central South University

, Volume 18, Issue 2, pp 285–289 | Cite as

Prediction model of residual stress field in aluminum alloy plate

  • Hai Gong (龚海)
  • Yun-xin Wu (吴运新)Email author
  • Kai Liao (廖凯)


Residual stress distributions in 7075 aluminum alloy thick plates with different thicknesses and different quenching speeds were measured. A shape function of stress distribution was proposed based on the internal stress distribution characteristics of aluminum alloy. Using nonlinear regression technology, the function between stress value of key points on internal stress curve and surface stress of the plate was obtained. Based on the measured surface stress, stress value of key points and stress distribution shape, the internal stress distribution can be reconstructed. The experiments show that the model is of good engineering practicality.

Key words

aluminum alloy residual stress thick plate surface stress prediction model 


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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Hai Gong (龚海)
    • 1
  • Yun-xin Wu (吴运新)
    • 1
    Email author
  • Kai Liao (廖凯)
    • 1
  1. 1.School of Mechanical and Electrical EngineeringCentral South UniversityChangshaChina

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