Measuring surface stress using nonlinear ultrasound

Minghe Liu, Jianmin Qu, Jin Yeon Kim, Laurence Jacobs

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The ability to measure the near-surface residual stresses associated with shot-peening is useful from a quality control and certification perspective. This research uses nonlinear Rayleigh surface waves to measure near-surface residual stresses. Experiments are conducted on three different aluminum alloy (AA 7075) samples with different levels of residual stresses. The nonlinear ultrasonic results show a large increase in the acoustic nonlinearity parameter, indicating the potential of nonlinear ultrasonics for the in situ characterization of near-surface residual stresses.

Original languageEnglish
Title of host publicationSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy"
StatePublished - 2010
EventSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy" - Seattle, WA, United States
Duration: 17 May 201020 May 2010

Publication series

NameInternational SAMPE Symposium and Exhibition (Proceedings)
ISSN (Print)0891-0138

Conference

ConferenceSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy"
Country/TerritoryUnited States
CitySeattle, WA
Period17/05/1020/05/10

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