Study on damage dynamics by using modal energy transfer

Zhong Liang; Tsai Jeon Huang; George C. Lee

Study on damage dynamics by using modal energy transfer

Zhong Liang
, Tsai Jeon Huang
, George C. Lee

Department of Civil, Structural & Environmental Engineering

SUNY Buffalo

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

1 Scopus citations

Abstract

The growth of damage in terms of size and/or severity in structure is referred to as damage dynamics. Since conventionally defined modal parameters may not be sensitive enough to detect earlier damage, it is necessary to find a more sensitive quantity with good measurement repeatability to implement this task. In this paper, a newly defined modal parameter, the energy transfer ratio (ETR), is introduced especially for the study on damage dynamics. By testing a model bridge experimentally, the damage growth vs. the changes of modal energy is investigated. It is found that ETR has a good potential for damage growth measurement.

Original language	English
Pages (from-to)	1339-1345
Number of pages	7
Journal	Proceedings of the International Modal Analysis Conference - IMAC
Volume	2
State	Published - 1997
Event	Proceedings of the 1997 15th International Modal Analysis Conference, IMAC. Part 2 (of 2) - Orlando, FL, USA Duration: Feb 3 1997 → Feb 6 1997

Cite this

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title = "Study on damage dynamics by using modal energy transfer",

abstract = "The growth of damage in terms of size and/or severity in structure is referred to as damage dynamics. Since conventionally defined modal parameters may not be sensitive enough to detect earlier damage, it is necessary to find a more sensitive quantity with good measurement repeatability to implement this task. In this paper, a newly defined modal parameter, the energy transfer ratio (ETR), is introduced especially for the study on damage dynamics. By testing a model bridge experimentally, the damage growth vs. the changes of modal energy is investigated. It is found that ETR has a good potential for damage growth measurement.",

author = "Zhong Liang and Huang, \{Tsai Jeon\} and Lee, \{George C.\}",

year = "1997",

language = "English",

volume = "2",

pages = "1339--1345",

journal = "Proceedings of the International Modal Analysis Conference - IMAC",

issn = "1046-6770",

publisher = "Society for Experimental Mechanics",

note = "Proceedings of the 1997 15th International Modal Analysis Conference, IMAC. Part 2 (of 2) ; Conference date: 03-02-1997 Through 06-02-1997",

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T1 - Study on damage dynamics by using modal energy transfer

AU - Liang, Zhong

AU - Huang, Tsai Jeon

AU - Lee, George C.

PY - 1997

Y1 - 1997

N2 - The growth of damage in terms of size and/or severity in structure is referred to as damage dynamics. Since conventionally defined modal parameters may not be sensitive enough to detect earlier damage, it is necessary to find a more sensitive quantity with good measurement repeatability to implement this task. In this paper, a newly defined modal parameter, the energy transfer ratio (ETR), is introduced especially for the study on damage dynamics. By testing a model bridge experimentally, the damage growth vs. the changes of modal energy is investigated. It is found that ETR has a good potential for damage growth measurement.

AB - The growth of damage in terms of size and/or severity in structure is referred to as damage dynamics. Since conventionally defined modal parameters may not be sensitive enough to detect earlier damage, it is necessary to find a more sensitive quantity with good measurement repeatability to implement this task. In this paper, a newly defined modal parameter, the energy transfer ratio (ETR), is introduced especially for the study on damage dynamics. By testing a model bridge experimentally, the damage growth vs. the changes of modal energy is investigated. It is found that ETR has a good potential for damage growth measurement.

UR - https://www.scopus.com/pages/publications/0031336833

M3 - Conference article

AN - SCOPUS:0031336833

SN - 1046-6770

VL - 2

SP - 1339

EP - 1345

JO - Proceedings of the International Modal Analysis Conference - IMAC

JF - Proceedings of the International Modal Analysis Conference - IMAC

T2 - Proceedings of the 1997 15th International Modal Analysis Conference, IMAC. Part 2 (of 2)

Y2 - 3 February 1997 through 6 February 1997

ER -

Study on damage dynamics by using modal energy transfer

Abstract

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