TY - JOUR

T1 - Probability density field of acoustic emission events

T2 - Damage identification in concrete structures

AU - Zhang, Fengqiao

AU - Yang, Yuguang

AU - Naaktgeboren, Marius

AU - Hendriks, Max A.N.

PY - 2022

Y1 - 2022

N2 - This paper proposes a new damage identification method, namely, the probability density field of acoustic emission (AE) events. This new method provides a different perspective to deal with the uncertainties in the source localization process. We treat the source location as a random variable, and estimate its probability density field based on a probability density function. The function was found from simulations where various uncertainties were included. The probability of AE events falling in a certain space range is the integral of the probability densities over that range. We apply the new method in a failure test of a full-scale reinforced concrete beam. The resultant probability density field clearly reflects the crack patterns of the specimen and a close relationship with the crack width.

AB - This paper proposes a new damage identification method, namely, the probability density field of acoustic emission (AE) events. This new method provides a different perspective to deal with the uncertainties in the source localization process. We treat the source location as a random variable, and estimate its probability density field based on a probability density function. The function was found from simulations where various uncertainties were included. The probability of AE events falling in a certain space range is the integral of the probability densities over that range. We apply the new method in a failure test of a full-scale reinforced concrete beam. The resultant probability density field clearly reflects the crack patterns of the specimen and a close relationship with the crack width.

KW - Acoustic emission event density

KW - Acoustic emission source localization

KW - Concrete structures

KW - Damage identification

KW - Probability density function

KW - Source localization error

UR - http://www.scopus.com/inward/record.url?scp=85125410151&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2022.126984

DO - 10.1016/j.conbuildmat.2022.126984

M3 - Article

AN - SCOPUS:85125410151

VL - 327

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

M1 - 126984

ER -