Assessment of ultrasonic transmission tomography algorithms in the context of suitability for imaging the state of preservation of wooden and masonry structural elements.

Celem projektu jest ocena metod obrazowania tomograficznego opartego o propagację fal ultradźwiękowych w elementach konstrukcyjnych. Badania przeprowadzone zostaną na drewnianych belkach oraz kolumnach murowych. Analizie poddany zostanie wpływ geometrii przekroju oraz występowania wilgoci na zjawisko przejścia fali w danym elemencie. Ocenie podlegać będzie prędkość propagacji fali oraz ścieżka jej przejścia w badanym przekroju. Uzyskane wyniki posłużą do wykonania przekrojowych obrazów tomografii transmisyjnej. Dodatkowo wykonane zostaną trójwymiarowe modele odzwierciedlające obszary o zróżnicowanych właściwościach rozchodzenia się fal ultradźwiękowych. W planowanych badaniach postawiono tezę, że zarówno wilgoć jak i geometria przekroju ma wpływ na przebieg fal ultradźwiękowych w elementach murowych i drewnianych.

Details

Financial Program Name:

PRELUDIUM

Organization:

Narodowe Centrum Nauki (NCN) (National Science Centre)

Agreement:

UMO-2017/27/N/ST8/02399 z dnia 2018-07-26

Realisation period:

2018-07-26 - 2021-07-25

Project manager:

dr inż. Monika Zielińska

Team members:

Research supervisor prof. dr hab. inż. Magdalena Rucka

Realised in:

Department of Technical Fundamentals of Architecture Design

Project's value:

135 200.00 PLN

Request type:

National Research Programmes

Domestic:

Domestic project

Verified by:

Gdańsk University of Technology

Papers associated with that project

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total: 6

Year 2023

Assessment of Wooden Beams from Historical Buildings Using Ultrasonic Transmission Tomography
Publication
- M. Zielińska
- M. Rucka
- International Journal of Architectural Heritage - Year 2023
The main goal of this study was non-destructive evaluation of wooden elements using ultrasonic waves. The inspection was carried out on wooden beams from a historical object. Elastic wave signals were processed by ultrasonic transmission tomography to obtain imaging of the internal structure of tested elements without disturbing their state and integrity. The focus was on the influence of wood anisotropy on the propagation of ultrasonic...

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Year 2021

Imaging of Increasing Damage in Steel Plates Using Lamb Waves and Ultrasound Computed Tomography
Publication
- M. Zielińska
- M. Rucka
- Materials - Year 2021
This paper concerns inspection of steel plates, with particular emphasis on the assessment of in-creasing damage. Non-destructive tests were performed on four plates, one of which was un-damaged, while the remaining three had a defects in the form of circular holes with a diameter of 2, 5, and 10 cm. Guided Lamb waves were used in the research, and the image reconstruction was performed using ultrasound computed tomography. The...

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Non-destructive Testing of Wooden Elements
Publication
- M. Zielińska
- M. Rucka
- IOP Conference Series: Materials Science and Engineering - Year 2021
Examining the condition of wooden elements is crucial from the perspective of proper structure performance. If the deterioration in the internal wood condition, which displays no symptoms visible from the outside, is detected, the further spread of the deterioration can be prevented. Test results often point to the necessity of conducting repairs and, renovations, replacing the structure of wooden beams, or even substituting a...

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Year 2020

Detection of debonding in reinforced concrete beams using ultrasonic transmission tomography and hybrid ray tracing technique
Publication
- M. Zielińska
- M. Rucka
- CONSTRUCTION AND BUILDING MATERIALS - Year 2020
This paper concerns inspection of reinforced concrete elements, with particular emphasis on assessing the quality of the adhesive connection between steel and concrete. A novel theoretical model was developed to determine the paths of transmitted, refracted and reflected elastic waves as well as a creeping wave propagated along the inclusion surface. Imaging the internal structure of tested beams was based on wave propagation measurements...

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Year 2019

Ultrasonic Tomography of Brick Columns Based on FEM Calculations
Publication
- M. Zielińska
- M. Rucka
- IOP Conference Series: Materials Science and Engineering - Year 2019
Ultrasonic tomography is one of the most developed method of non-destructive testing. Despite being used mainly in medicine, it is becoming more and more popular as a method for monitoring of structural elements. It allows to examine the internal structure and technical condition of the tested element. This paper investigates the influence of crosssectional geometry on an obtained tomographic image. Wave propagation signals were...

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Year 2018

Non-Destructive Assessment of Masonry Pillars using Ultrasonic Tomography
Publication
- M. Zielińska
- M. Rucka
- Materials - Year 2018
In this paper, a condition assessment of masonry pillars is presented. Non-destructive tests were performed on an intact pillar as well as three pillars with internal inclusions in the form of a hole, a steel bar grouted by gypsum mortar, and a steel bar grouted by cement mortar. The inspection utilized ultrasonic stress waves and the reconstruction of the velocity distribution was performed by means of computed tomography. The...

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