Nonlinear guided waves for monitoring microstructural changes in metal structures

Gloria Choi, Yang Liu, Clifford Jesse Lissenden, III

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The capability of third harmonic generation to indicate material degradation at the microstructural level is demonstrated for strain ratcheting in Alloy 617. Specifically, mechanical experiments on Alloy 617 having constant axial stress and shear strain controlled cycling were conducted to failure and damage fractions of 0.58 and 0.71 based on the total axial strain. The tubular specimens were then nondestructively tested using magnetostrictive transducers to send and receive finite amplitude torsional guided waves. These primary waves generated third harmonics that are sensitive to the microstructural state. These results demonstrate the potential of nonlinear ultrasonics for early detection of degradation, which is needed for life cycle management based on condition-based maintenance.

Original languageEnglish (US)
Title of host publicationOperations, Applications and Components
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857021
DOIs
StatePublished - Jan 1 2015
EventASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States
Duration: Jul 19 2015Jul 23 2015

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume7
ISSN (Print)0277-027X

Other

OtherASME 2015 Pressure Vessels and Piping Conference, PVP 2015
CountryUnited States
CityBoston
Period7/19/157/23/15

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Nonlinear guided waves for monitoring microstructural changes in metal structures'. Together they form a unique fingerprint.

  • Cite this

    Choi, G., Liu, Y., & Lissenden, III, C. J. (2015). Nonlinear guided waves for monitoring microstructural changes in metal structures. In Operations, Applications and Components (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 7). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2015-45292