Optimized dynamic acousto-elasticity applied to fatigue damage and stress corrosion cracking

Sylvain Haupert, Jacques Riviere, Brian Anderson, Yoshikazu Ohara, T. J. Ulrich, Paul Johnson

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The dynamic acousto-elasticity (DAE) technique uniquely provides the elastic (speed of sound and attenuation) behavior over a dynamic strain cycle. This technique has been applied successfully to highly nonlinear materials such as rock samples, where nonlinear elastic sources are present throughout the material. DAE has shown different nonlinear elastic behavior in tension and compression as well as early-time memory effects (i.e. fast and slow dynamics) that cannot be observed with conventional dynamic techniques (e.g. resonance or wave mixing measurements). The main objective of the present study is to evaluate if the DAE technique is also sensitive to (1) fatigue damage and (2) a localized stress corrosion crack. A secondary objective is to adapt the DAE experimental setup to perform measurements in smaller specimens (thickness of few cm). Several samples (intact aluminium, fatigued aluminium and steel with a stress corrosion crack) were investigated. Using signal processing not normally applied to DAE, we are able to measure the nonlinear elastic response of intact aluminium, distinguish the intact from the fatigued aluminium sample and localize different nonlinear features in the stress corrosion cracked steel sample.

Original languageEnglish (US)
Pages (from-to)226-238
Number of pages13
JournalJournal of Nondestructive Evaluation
Volume33
Issue number2
DOIs
StatePublished - Jan 1 2014

Fingerprint

Fatigue damage
Stress corrosion cracking
Elasticity
Aluminum
Corrosion
Cracks
Steel corrosion
Acoustic wave velocity
Signal processing
Rocks
Data storage equipment
Steel

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Haupert, Sylvain ; Riviere, Jacques ; Anderson, Brian ; Ohara, Yoshikazu ; Ulrich, T. J. ; Johnson, Paul. / Optimized dynamic acousto-elasticity applied to fatigue damage and stress corrosion cracking. In: Journal of Nondestructive Evaluation. 2014 ; Vol. 33, No. 2. pp. 226-238.
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Optimized dynamic acousto-elasticity applied to fatigue damage and stress corrosion cracking. / Haupert, Sylvain; Riviere, Jacques; Anderson, Brian; Ohara, Yoshikazu; Ulrich, T. J.; Johnson, Paul.

In: Journal of Nondestructive Evaluation, Vol. 33, No. 2, 01.01.2014, p. 226-238.

Research output: Contribution to journalArticle

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