Damage detection using modal strain energy and laser vibrometer measurements

A. W. Otieno; P. Liu; V. S. Rao; L. R. Koval

doi:10.1117/12.388832

Damage detection using modal strain energy and laser vibrometer measurements

A. W. Otieno, P. Liu, V. S. Rao, L. R. Koval

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

The sensitivity of the modal strain energy method to the stiffness matrix is explored, focusing on its accuracy to detect the location and extent of damage. Two case studies are presented. The first is an experimental and analytical model of a cantilever beam and the second is a truss model of the European Space Agency. Results from both studies show a slight improved accuracy in determining the location of damage using an updated elemental stiffness matrix.

Original language	English
Pages (from-to)	283-292
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3985
DOIs	https://doi.org/10.1117/12.388832
State	Published - 2000
Event	Smart Structures and Materials 2000 - Smart Structures and Integrated Systems - Newport Beach, CA, USA Duration: Mar 6 2000 → Mar 9 2000

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10.1117/12.388832

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title = "Damage detection using modal strain energy and laser vibrometer measurements",

abstract = "The sensitivity of the modal strain energy method to the stiffness matrix is explored, focusing on its accuracy to detect the location and extent of damage. Two case studies are presented. The first is an experimental and analytical model of a cantilever beam and the second is a truss model of the European Space Agency. Results from both studies show a slight improved accuracy in determining the location of damage using an updated elemental stiffness matrix.",

author = "Otieno, {A. W.} and P. Liu and Rao, {V. S.} and Koval, {L. R.}",

year = "2000",

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T1 - Damage detection using modal strain energy and laser vibrometer measurements

AU - Otieno, A. W.

AU - Liu, P.

AU - Rao, V. S.

AU - Koval, L. R.

PY - 2000

Y1 - 2000

N2 - The sensitivity of the modal strain energy method to the stiffness matrix is explored, focusing on its accuracy to detect the location and extent of damage. Two case studies are presented. The first is an experimental and analytical model of a cantilever beam and the second is a truss model of the European Space Agency. Results from both studies show a slight improved accuracy in determining the location of damage using an updated elemental stiffness matrix.

AB - The sensitivity of the modal strain energy method to the stiffness matrix is explored, focusing on its accuracy to detect the location and extent of damage. Two case studies are presented. The first is an experimental and analytical model of a cantilever beam and the second is a truss model of the European Space Agency. Results from both studies show a slight improved accuracy in determining the location of damage using an updated elemental stiffness matrix.

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U2 - 10.1117/12.388832

DO - 10.1117/12.388832

M3 - Conference article

AN - SCOPUS:0033726487

SN - 0277-786X

VL - 3985

SP - 283

EP - 292

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Smart Structures and Materials 2000 - Smart Structures and Integrated Systems

Y2 - 6 March 2000 through 9 March 2000

ER -

Damage detection using modal strain energy and laser vibrometer measurements

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