@inproceedings{687637f028e5469c827600545ec07740,
title = "Basic study and application for ultrasound dispersion in concrete structures",
abstract = "In this research, after the simulation of FEM analysis using the three dimensional concrete model, we focused on the large dispersion of the transmitted echo in concrete due to the velocity difference between aggregate and mortar. Then to support the efficient measurement for this large dispersion the super-broad band ultrasonic measurement system using step function pulsar combined with the broad band transducer of 500 kHz in frequency was applied for the transmission and reflection measurement of the concrete specimen with a thickness of 200 mm. Furthermore, the spatial averaging measurement procedure for a virtual larger transducer was applied as a basic research of the ultrasonic evaluation for industrial concrete structure.",
keywords = "3D FEM, Concrete, Dispersion, Step Pulsar, Ultrasound",
author = "T. Mihara and M. Maruta and T. Hamajima and Y. Udagawa and H. Tashiro",
year = "2011",
month = nov,
day = "10",
doi = "10.1063/1.3592083",
language = "English",
isbn = "9780735408883",
series = "AIP Conference Proceedings",
pages = "1299--1306",
booktitle = "Review of Progress in Quantitative Nondestructive Evaluation",
note = "37th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE ; Conference date: 18-07-2010 Through 23-07-2010",
}