Ultrasonic measurement of crack opening load for life-extending control of mechanical structures

Dheeraj S. Singh; Abhishek Srivastav; Shalabh Gupta; Eric Keller; Asok Ray

doi:10.1109/ACC.2009.5160021

Ultrasonic measurement of crack opening load for life-extending control of mechanical structures

Dheeraj S. Singh, Abhishek Srivastav, Shalabh Gupta, Eric Keller, Asok Ray

Mechanical Engineering

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

8 Scopus citations

Abstract

This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

Original language	English (US)
Title of host publication	2009 American Control Conference, ACC 2009
Pages	210-215
Number of pages	6
DOIs	https://doi.org/10.1109/ACC.2009.5160021
State	Published - 2009
Event	2009 American Control Conference, ACC 2009 - St. Louis, MO, United States Duration: Jun 10 2009 → Jun 12 2009

Publication series

Name	Proceedings of the American Control Conference
ISSN (Print)	0743-1619

Other

Other	2009 American Control Conference, ACC 2009
Country/Territory	United States
City	St. Louis, MO
Period	6/10/09 → 6/12/09

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/ACC.2009.5160021

Cite this

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title = "Ultrasonic measurement of crack opening load for life-extending control of mechanical structures",

abstract = "This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.",

author = "Singh, {Dheeraj S.} and Abhishek Srivastav and Shalabh Gupta and Eric Keller and Asok Ray",

year = "2009",

doi = "10.1109/ACC.2009.5160021",

language = "English (US)",

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series = "Proceedings of the American Control Conference",

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booktitle = "2009 American Control Conference, ACC 2009",

}

Singh, DS, Srivastav, A, Gupta, S, Keller, E & Ray, A 2009, Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. in 2009 American Control Conference, ACC 2009., 5160021, Proceedings of the American Control Conference, pp. 210-215, 2009 American Control Conference, ACC 2009, St. Louis, MO, United States, 6/10/09. https://doi.org/10.1109/ACC.2009.5160021

TY - GEN

T1 - Ultrasonic measurement of crack opening load for life-extending control of mechanical structures

AU - Singh, Dheeraj S.

AU - Srivastav, Abhishek

AU - Gupta, Shalabh

AU - Keller, Eric

AU - Ray, Asok

PY - 2009

Y1 - 2009

N2 - This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

AB - This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

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U2 - 10.1109/ACC.2009.5160021

DO - 10.1109/ACC.2009.5160021

M3 - Conference contribution

AN - SCOPUS:70449637797

SN - 9781424445240

T3 - Proceedings of the American Control Conference

SP - 210

EP - 215

BT - 2009 American Control Conference, ACC 2009

T2 - 2009 American Control Conference, ACC 2009

Y2 - 10 June 2009 through 12 June 2009

ER -

Ultrasonic measurement of crack opening load for life-extending control of mechanical structures

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