Damage investigation of single-edge notched beam tests with concrete specimens using acoustic emission techniques

Qingli Dai; Kenny Ng

doi:10.1117/12.2013879

11 April 2013 Damage investigation of single-edge notched beam tests with concrete specimens using acoustic emission techniques

Qingli Dai, Kenny Ng

Author Affiliations +

Proceedings Volume 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013; 869414 (2013) https://doi.org/10.1117/12.2013879
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

This study applied the AE techniques with statistical analysis to investigate the damage process of singleedge notched beam (SEB) tests with normal strength concrete specimens. The SEB tests with the labprepared NSC specimens were conducted by employing a clip-gauge controlled servo-hydraulic testing system and an AE damage detection system. It was found that the cumulative AE events with respect to the crack mouth opening displacement (CMOD) or the crack tip opening displacement (CTOD) correlate to the mechanical loading of the specimens. A Weibull rupture probability distribution was proposed to quantitatively describe the mechanical damage behavior under the SEB test. A bi-logarithmic regression analysis was conducted to calibrate the Weibull damage distribution with detected AE signals and to predict the damage process as a function of the crack opening displacements. The calibrated Weibull damage functions were compared among concrete specimens. The comparison results indicate the Weibull function calibrated with AE signals can describe the damage behavior of concrete beam specimens.

Citation Download Citation

Qingli Dai and Kenny Ng "Damage investigation of single-edge notched beam tests with concrete specimens using acoustic emission techniques", Proc. SPIE 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013, 869414 (11 April 2013); https://doi.org/10.1117/12.2013879

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available