Journal of Shanghai Jiaotong University ›› 2016, Vol. 50 ›› Issue (02): 241-245.

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Loading Measurement Method for Residual Stresses of InjectionMolded Part

LIU Hong1,JIANG Lanfang2,CHEN Xianli1   

  1. (1. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; 2. Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China)
  • Received:2014-12-10 Online:2016-02-29 Published:2016-02-29

Abstract: Abstract: Based on the principle of linear superposition, a nondestructive measurement for residual stresses, i.e. the loading measurement method for residual stresses was proposed. In a certain way, it applies loads on the injectionmolded part, measures the strain on the surface measuring points, and calculates the loading stresses and residual stresses on the measuring points of the injectionmolded part. The results show that the loading measurement method has advantages over the hole drilling method and the layer removal method because it has a comparatively lower measuring cost, and it is precise when the loading state of the measured part is under the elastic range.

Key words: Key words: injectionmolded part, residual stress, finite element method, loading measurement method

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