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Identification of brittle damage in a UHPC beam using ultrasonic transmission tomography Cover

Identification of brittle damage in a UHPC beam using ultrasonic transmission tomography

Construction of Optimized Energy Potential
Volume 14 (2025): Issue 1 (December 2025)
By: Karolina Tatara and  Piotr Adam Bońkowski  
Open Access
|Dec 2025

Figures & Tables

Fig. 1.

Types of ultrasonic tomographic methods (own study based on Opieliński et al., 2002)
Types of ultrasonic tomographic methods (own study based on Opieliński et al., 2002)

Fig. 2.

Cases of wave transmission through a concrete element with an elastically degraded zone (a, b) and with a crack: a) the acoustic impedances of both subdomains are identical (z2 = z1), b) the acoustic impedance of subdomain 2 is slightly lower (z2 < z1), c) and d) the acoustic impedance of subdomain 2 is significantly lower (z2 ≪ z1) (own research)
Cases of wave transmission through a concrete element with an elastically degraded zone (a, b) and with a crack: a) the acoustic impedances of both subdomains are identical (z2 = z1), b) the acoustic impedance of subdomain 2 is slightly lower (z2 < z1), c) and d) the acoustic impedance of subdomain 2 is significantly lower (z2 ≪ z1) (own research)

Fig. 3.

Scheme of a cell system, transmitting/receiving points, and rays in a plane area examined tomographically (own research)
Scheme of a cell system, transmitting/receiving points, and rays in a plane area examined tomographically (own research)

Fig. 4.

Example of an L-curve (own research)
Example of an L-curve (own research)

Fig. 5.

Geometry of the analysed beam (dimensions in mm) (Bońkowski, 2020)
Geometry of the analysed beam (dimensions in mm) (Bońkowski, 2020)

Fig. 6.

View of the experimental setup (own photo)
View of the experimental setup (own photo)

Fig. 7.

Force – displacement relationship for the UHPC beam. Table indicates maximum forces applied in the first eleven stages (own study based on Bońkowski, 2023)
Force – displacement relationship for the UHPC beam. Table indicates maximum forces applied in the first eleven stages (own study based on Bońkowski, 2023)

Fig. 8.

a) Longitudinal view of the investigated element, b) Localisation of the measuring points in the UHPC beam (dimensions in mm) (own study)
a) Longitudinal view of the investigated element, b) Localisation of the measuring points in the UHPC beam (dimensions in mm) (own study)

Fig. 9.

Schematic of time-of-flight measurement for a single ultrasonic ray (Tatara, 2019)
Schematic of time-of-flight measurement for a single ultrasonic ray (Tatara, 2019)

Fig. 10.

Tomographic reconstructions of longitudinal ultrasonic wave velocity distributions at successive stages: a) stage 0, b) stage 1, c) stage 2, d) stage 3, e) stage 4, f) stage 5 (own research)
Tomographic reconstructions of longitudinal ultrasonic wave velocity distributions at successive stages: a) stage 0, b) stage 1, c) stage 2, d) stage 3, e) stage 4, f) stage 5 (own research)

Fig. 11.

Tomographic reconstructions of longitudinal ultrasonic wave velocity distributions at successive stages: a) stage 6, b) stage 7, c) stage 8, d) stage 9, e) stage 10, f) stage 11 (own research)
Tomographic reconstructions of longitudinal ultrasonic wave velocity distributions at successive stages: a) stage 6, b) stage 7, c) stage 8, d) stage 9, e) stage 10, f) stage 11 (own research)

Fig. 12.

Evolution of cracks in the investigated area of beam for each damage state: a) stage 1, b) stage 2, c) stage 3, d) stage 4, e) stage 5, f) stage 6, g) stage 7, h) stage 8, i) stage 9, j) stage 10, k) stage 11, source (own study based on Bońkowski, 2023)
Evolution of cracks in the investigated area of beam for each damage state: a) stage 1, b) stage 2, c) stage 3, d) stage 4, e) stage 5, f) stage 6, g) stage 7, h) stage 8, i) stage 9, j) stage 10, k) stage 11, source (own study based on Bońkowski, 2023)

Fig. 13.

View of the experimental setup (own photo)
View of the experimental setup (own photo)
DOI: https://doi.org/10.17512/bozpe.2025.14.22 | Journal eISSN: 2544-963X | Journal ISSN: 2299-8535
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Language: English
Page range: 217 - 231
Published on: Dec 12, 2025
Published by: Technical University in Czestochowa
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
concrete,
UHPC,
ultrasonic transmission tomography
Related subjects:
Architecture and design,
Architecture and design, other,
Engineering,
Civil engineering,
Materials,
Environmental engineering

© 2025 Karolina Tatara, Piotr Adam Bońkowski, published by Technical University in Czestochowa
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 License.

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