Monitoring of environmental loading effect on the steel with different plastic deformation by diffuse ultrasound
Auteur(s): |
Fan Xie
Weibin Li Yuxiang Zhang |
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Médium: | article de revue |
Langue(s): | anglais |
Publié dans: | Structural Health Monitoring, janvier 2018, n. 2, v. 18 |
Page(s): | 602-609 |
DOI: | 10.1177/1475921718762323 |
Abstrait: |
Diffuse ultrasound is highly sensitive to changes in mechanical properties. Based on the coda wave interferometry analysis, we investigate the environmental temperature-induced wave velocity variations in high-manganese steels with plastic deformations by diffuse ultrasound. We observe the velocity changes in the materials at test with [Formula: see text] relative resolution. We propose the temperature-dependent coefficient as the key parameter for damage assessment in the specimens with different plastic deformations. The results show that the early-stage damage caused by plastic deformation in the specimens at test varying from 6% to 14% are successfully characterized by temperature-dependent coefficients in the absence of external mechanical load. The theoretical analysis on the sensitivity of the temperature-dependent coefficient to plastic deformation as well as the potential on-site application is discussed in this article. |
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10562154 - Publié(e) le:
11.02.2021 - Modifié(e) le:
19.02.2021