Dislocation detection through harmonic generation

B. T. Reinhardt; M. Kropf; K. Boudraeu; Manton John Guers; Bernhard R. Tittmann

doi:10.1063/1.3362230

Dislocation detection through harmonic generation

B. T. Reinhardt, M. Kropf, K. Boudraeu, Manton John Guers, Bernhard R. Tittmann

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A fundamental goal of ultrasonic nondestructive evaluation is to characterize material defects before failure. During material fatigue, dislocations tend to nucleate, becoming sources of stress concentration. Eventually, cracks start to form and lead to material failure. Recent research has indicated that nonlinear harmonic generation can be used to distinguish between materials of high and low dislocation densities. This research reports nonlinear harmonic generation measurements to distinguish between those areas of high and low dislocation densities in copper bars. The copper bars were subjected to flexural fatigue. Periodic scans were taken in order to track dislocation development during the fatigue life of the material. We show that this technique provides improved early detection for critical components of failure.

Original language	English (US)
Title of host publication	Review of Progress in Quantitative Nondestructive Evaluation
Pages	1391-1396
Number of pages	6
Volume	1211
DOIs	https://doi.org/10.1063/1.3362230
State	Published - Apr 1 2010
Event	36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE - Kingston, RI, United States Duration: Jul 26 2009 → Jul 31 2009

Other

Other	36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE
Country/Territory	United States
City	Kingston, RI
Period	7/26/09 → 7/31/09

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.3362230

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title = "Dislocation detection through harmonic generation",

abstract = "A fundamental goal of ultrasonic nondestructive evaluation is to characterize material defects before failure. During material fatigue, dislocations tend to nucleate, becoming sources of stress concentration. Eventually, cracks start to form and lead to material failure. Recent research has indicated that nonlinear harmonic generation can be used to distinguish between materials of high and low dislocation densities. This research reports nonlinear harmonic generation measurements to distinguish between those areas of high and low dislocation densities in copper bars. The copper bars were subjected to flexural fatigue. Periodic scans were taken in order to track dislocation development during the fatigue life of the material. We show that this technique provides improved early detection for critical components of failure.",

author = "Reinhardt, {B. T.} and M. Kropf and K. Boudraeu and Guers, {Manton John} and Tittmann, {Bernhard R.}",

year = "2010",

month = apr,

day = "1",

doi = "10.1063/1.3362230",

language = "English (US)",

isbn = "9780735407480",

volume = "1211",

pages = "1391--1396",

booktitle = "Review of Progress in Quantitative Nondestructive Evaluation",

note = "36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE ; Conference date: 26-07-2009 Through 31-07-2009",

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TY - GEN

T1 - Dislocation detection through harmonic generation

AU - Reinhardt, B. T.

AU - Kropf, M.

AU - Boudraeu, K.

AU - Guers, Manton John

AU - Tittmann, Bernhard R.

PY - 2010/4/1

Y1 - 2010/4/1

N2 - A fundamental goal of ultrasonic nondestructive evaluation is to characterize material defects before failure. During material fatigue, dislocations tend to nucleate, becoming sources of stress concentration. Eventually, cracks start to form and lead to material failure. Recent research has indicated that nonlinear harmonic generation can be used to distinguish between materials of high and low dislocation densities. This research reports nonlinear harmonic generation measurements to distinguish between those areas of high and low dislocation densities in copper bars. The copper bars were subjected to flexural fatigue. Periodic scans were taken in order to track dislocation development during the fatigue life of the material. We show that this technique provides improved early detection for critical components of failure.

AB - A fundamental goal of ultrasonic nondestructive evaluation is to characterize material defects before failure. During material fatigue, dislocations tend to nucleate, becoming sources of stress concentration. Eventually, cracks start to form and lead to material failure. Recent research has indicated that nonlinear harmonic generation can be used to distinguish between materials of high and low dislocation densities. This research reports nonlinear harmonic generation measurements to distinguish between those areas of high and low dislocation densities in copper bars. The copper bars were subjected to flexural fatigue. Periodic scans were taken in order to track dislocation development during the fatigue life of the material. We show that this technique provides improved early detection for critical components of failure.

UR - http://www.scopus.com/inward/record.url?scp=77950171105&partnerID=8YFLogxK

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U2 - 10.1063/1.3362230

DO - 10.1063/1.3362230

M3 - Conference contribution

AN - SCOPUS:77950171105

SN - 9780735407480

VL - 1211

SP - 1391

EP - 1396

BT - Review of Progress in Quantitative Nondestructive Evaluation

T2 - 36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE

Y2 - 26 July 2009 through 31 July 2009

ER -

Dislocation detection through harmonic generation

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