2017
DOI: 10.12783/dtmse/mmme2016/10060
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A Judging Method of Residual Stress Based on Improved HHT and Edge Structure Similarity Analysis

Abstract: It is well known that residual stress occurs in many materials and structures, and it will influence the features of the specimen. A new judging method of residual stress based on improved Hilbert-Huang transform (HHT) and image information correlation analysis. Experiment study is carried out on two types of high strength aluminum alloy plate with or without the residual stress, respectively. The local Hilbert spectrum of each intrinsic mode function (IMF) and edge structure similarity coefficients under the … Show more

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