MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS

A. J. Hunter; B. W. Drinkwater; P. D. Wilcox

doi:10.1063/1.3591906

MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS

A. J. Hunter, B. W. Drinkwater, P. D. Wilcox

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

The quality of ultrasonic array imagery is adversely affected by uncompensated variations in the medium properties. A method for estimating the parameters of a general model of an inhomogeneous anisotropic medium is described. The model is comprised of a number of homogeneous sub-regions with unknown anisotropy. Bayesian estimation of the unknown model parameters is performed via a Monte-Carlo Markov chain using the Metropolis-Hastings algorithm. Results are demonstrated using simulated weld data.

Original language	English
Title of host publication	REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B
Editors	DO Thompson, DE Chimenti
Place of Publication	MELVILLE
Publisher	American Institute of Physics (AIP)
Pages	604-611
Number of pages	8
ISBN (Print)	978-0-7354-0888-3
DOIs	https://doi.org/10.1063/1.3591906
Publication status	Published - 2011
Event	37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) - San Diego, CA, United States Duration: 18 Jul 2010 → 23 Jul 2010 Conference number: 37

Conference

Conference	37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010)
Abbreviated title	QNDE 2010
Country/Territory	United States
City	San Diego, CA
Period	18/07/10 → 23/07/10

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@inproceedings{13c4f7d491a043d9b13048791e6f1b3f,

title = "MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS",

abstract = "The quality of ultrasonic array imagery is adversely affected by uncompensated variations in the medium properties. A method for estimating the parameters of a general model of an inhomogeneous anisotropic medium is described. The model is comprised of a number of homogeneous sub-regions with unknown anisotropy. Bayesian estimation of the unknown model parameters is performed via a Monte-Carlo Markov chain using the Metropolis-Hastings algorithm. Results are demonstrated using simulated weld data.",

author = "Hunter, {A. J.} and Drinkwater, {B. W.} and Wilcox, {P. D.}",

year = "2011",

doi = "10.1063/1.3591906",

language = "English",

isbn = "978-0-7354-0888-3",

pages = "604--611",

editor = "DO Thompson and DE Chimenti",

booktitle = "REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B",

publisher = "American Institute of Physics (AIP)",

address = "United States",

note = "37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010), QNDE 2010 ; Conference date: 18-07-2010 Through 23-07-2010",

}

Hunter, AJ, Drinkwater, BW & Wilcox, PD 2011, MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS. in DO Thompson & DE Chimenti (eds), REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B. American Institute of Physics (AIP), MELVILLE, pp. 604-611, 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010), San Diego, CA, United States, 18/07/10. https://doi.org/10.1063/1.3591906

MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS. / Hunter, A. J.; Drinkwater, B. W.; Wilcox, P. D.

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B. ed. / DO Thompson; DE Chimenti. MELVILLE : American Institute of Physics (AIP), 2011. p. 604-611.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS

AU - Hunter, A. J.

AU - Drinkwater, B. W.

AU - Wilcox, P. D.

N1 - Conference code: 37

PY - 2011

Y1 - 2011

N2 - The quality of ultrasonic array imagery is adversely affected by uncompensated variations in the medium properties. A method for estimating the parameters of a general model of an inhomogeneous anisotropic medium is described. The model is comprised of a number of homogeneous sub-regions with unknown anisotropy. Bayesian estimation of the unknown model parameters is performed via a Monte-Carlo Markov chain using the Metropolis-Hastings algorithm. Results are demonstrated using simulated weld data.

AB - The quality of ultrasonic array imagery is adversely affected by uncompensated variations in the medium properties. A method for estimating the parameters of a general model of an inhomogeneous anisotropic medium is described. The model is comprised of a number of homogeneous sub-regions with unknown anisotropy. Bayesian estimation of the unknown model parameters is performed via a Monte-Carlo Markov chain using the Metropolis-Hastings algorithm. Results are demonstrated using simulated weld data.

U2 - 10.1063/1.3591906

DO - 10.1063/1.3591906

M3 - Conference Contribution (Conference Proceeding)

SN - 978-0-7354-0888-3

SP - 604

EP - 611

BT - REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B

A2 - Thompson, DO

A2 - Chimenti, DE

PB - American Institute of Physics (AIP)

CY - MELVILLE

T2 - 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010)

Y2 - 18 July 2010 through 23 July 2010

ER -

MONTE-CARLO INVERSION OF TRAVEL-TIME DATA FOR THE ESTIMATION OF WELD MODEL PARAMETERS

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