Barbara Szymanik

West Pomeranian University of Technology, Szczecin · Department of Electrical Engineering

This study presents the utilization of the microwave infrared thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens. At first, a set of numerical models was created, comprising the broadband pyramidal horn antenna and the analyzed specimen. The u...

This study presents the utilization of the Microwave InfraRed Thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens. At first, a set of the numerical models was created, comprising of the broadband pyramidal horn antenna and the analyzed specimen...

This paper describes the application of infrared thermography combined with microwave excitation to detect bonding defects in a carbon fiber reinforced concrete structure. Electromagnetic and thermal phenomena are modeled and compared with experiment. Several short-term tests have been carried out, using both continuous and pulsed excitation, and s...

This research paper presents the application of the microwave infrared thermography (MIRT) technique for the purpose of detecting and characterizing defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens. Initially, a numerical model was constructed, which consisted of a broadband pyramidal horn antenna...

ESTP – LGCgE – Active thermography laboratory Pologne: Application for PHC POLONIUM 2024 program

Structural health monitoring (SHM) is focused on the systematic monitoring of the state of structures to determine their safety, dependability, and durability [...]

There active infrared thermography methods with three different excitation systems are presented. The methods are applied to detecting defect in CFRP and the steel reinforcements in RC wall.

In this article we present an approach to the quantitative evaluation of the 3D printed sample made of polyethylene terephthalate glycol (PETG) using the active infrared thermography (AIT) method with halogen lamps excitation. For this purpose, numerical and experimental studies were carried out. The numerical model solved with finite element metho...

This article will present the results of numerical modeling of the phenomena related to active infrared thermography applied to the evaluation of carbon composites (CFRP). The numerical model includes a broadband horn antenna and a carbon composite specimen. The application of a relatively low power system - 80W and frequencies in the band between...

Poland: Active thermography laboratory France: ENDSUM (Cerema Angers) – LGCgE of Artois University - Application for PHC POLONIUM 2023 program

This article describes an approach to evaluating the structural properties of samples manufactured through 3D printing via active infrared thermography. The mentioned technique was used to test the PETG sample, using halogen lamps as an excitation source. First, a simplified, general numerical model of the phenomenon was prepared; then, the obtaine...

In this paper, we propose a new method based on active infrared thermography (IRT) applied to assess the state of 3D-printed structures. The technique utilized here—active IRT—assumes the use of an external energy source to heat the tested material and to create a temperature difference between undamaged and defective areas, and this temperature di...

Active infrared thermography is one of the methods of non-destructive testing widely used in modern industry. One of the basic advantages of this particular method is its versatility – it can be used for most of the materials regardless of their physical properties. Therefore, this technique is used for non-destructive testing of the composite stru...

Ablation is commonly used medical procedure for removal of liver tumors. It is minimally invasive technique that is based on the insertion of a thin needle antenna into malignant tissue and heating the region of interest by microwaves. The aim of this work is to optimize shape of a microwave antenna with 50-ohm feed and multiple air gaps. Fundament...

In this article the reinforced concrete non-destructive evaluation using active thermography is discussed. There are several aspects of possible non-destructive testing of mentioned structures. One of them is the detection and assessment of the reinforcement itself. In case of active thermography, the external energy source has to be used to induce...

In this work, we modeled a simple n-channel Si Metal-Quantum confined layer-Semiconductor Field Effect Transistor (MQSFET), which resembles exactly as the conventional Si Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) where SiO2 dielectric layer is replaced with a wide band gap C60 quantum confined layer of thickness 3nm and gold (Ψ=5.1...

W artykule przedstawiono koncepcję wielomodalnego systemu monitorowania zmian stanu konstrukcji stalowych zachodzących w wyniku oddziaływania obciążenia zmieniającego się w czasie. W celu monitorowania różnych aspektów zmian zachodzących w strukturze materiału w procesie degradacji, zaproponowano dwa podsystemy umożliwiające przeprowadzenie zarówno...

W niniejszym artykule prezentowana jest technika wykrywania i oceny wad w materiałach kompozytowych, bazująca na integracji aktywnej termografii i metody terahercowej. W badaniach eksperymentalnych została wykorzystana próbka wykonana z kompozytu szklanego z szeregiem nawierceń symulujących rzeczywiste wady. W związku z faktem, iż aktywna termograf...

This paper presents in detail the experimental methodologies and the results of the infrared investigation of steel samples under load. Moreover, the second electromagnetic method (EM) for nondestructive evaluation was used to monitor the fatigue process. The infrared thermography allows one to observe the global condition of the material, while th...

In this article the reinforced concrete non-destructive evaluation using active thermography is discussed. There are several aspects of possible non-destructive testing of mentioned structures. One of them is the detection and assessment of the reinforcement itself. In case of active thermography, the external energy source has to be used to induce...

Purpose – The purpose of this paper is to describe a multisource system for nondestructive inspection of welded elements exploited in aircraft industry developed in West Pomeranian University of Technology, Szczecin in the frame of CASELOT project. The system task is to support the operator in flaws identification of welded aircraft elements using...

Purpose – The purpose of this paper is to present two methods of detection for landmines with minimal metal content. Design/methodology/approach – First, two methods of landmine detection are presented: magnetic and infrared with microwave heating. For each method the numerical algorithm of an object’s position and properties determination are pre...

Two nondestructive methods are used for monitoring of fatigue process in steel samples under cyclic loading: the infrared thermography (IRT) and electromagnetic (EM). The IRT allows to observe the general global condition of the material while the EM to carry out local, detail examination of the fatigue stage in critical region. Both methods have d...

The purpose of this paper is to present a multi-sensor approach to the detection and inspection of steel bars in reinforced concrete structures. In connection with our past experience related to non-destructive testing of different materials, we propose using two potentially effective methods: active infrared thermography with microwave excitation...

The inspection of thin basalt fiber reinforced composite materials was carried out using two nondestructive methods: terahertz time domain imaging and infrared thermography. In order to combine the information about the defects arising in examined materials the inspection results were parametrized. In order to acquire more information content, new...

Wind turbines are complex composite structures, which condition should be constantly tested. In this paper the techniques which are already used or are implementable for non-destructive examination of wind turbine blades will be presented. All the techniques will be described in terms of inspection during production process and in service. New tech...

Two nondestructive methods are used for evaluation of fatigue stage in steel samples under load: the infrared thermography (IRT) and electromagnetic (EM). The IRT allows to observe the general global condition of the material while the EM to carry out local, detail examination of the fatigue stage in critical region. Both methods have different phy...

Landmines still pose a serious threat mostly to civilians. Therefore, there is no doubt that working on the methods of landmines’ detection and liquidation should be considered extremely important. In this paper, we introduce the active infrared thermography with microwave excitation used in nonmetallic landmines’ detection. The effectiveness of th...

Landmines still affect numerous territories in the whole world and pose a serious threat, mostly to civilians. Widely used non-metallic landmines are undetectable using metal detector. Therefore, there is an urging need to improve methods of detecting such objects. In the present study we introduce relatively new method of landmines' detection: act...

In this paper the inspection of stress subjected composite materials was carried out using three nondestructive methods: radiography, infrared thermography and terahertz. In order to combine the information about the defects arising in examined materials the low-level data fusion algorithms were applied. The results are presented and discussed.

The studies on glass-fiber reinforced composites, due to their growing popularity and high diversity of industrial applications, are becoming an increasingly popular branch of the nondestructive testing. Mentioned composites are used, among other applications, in wind turbine blades and are exposed to various kinds of damages. The equipment reliabi...

Landmines, which affect numerous of territories in the whole world, pose a serious threat mostly to civilians. Therefore there's no doubt that the work on improving the methods of landmines' detection and liquidation should be considered important. Nowadays most effort should be focused on detecting the most common, nonmetallic landmines. In presen...

Minimal hepatic encephalopathy (HE) is a serious complication of cirrhosis; however, the impact of minimal HE on health-related quality of life (HRQoL) remains controversial. The Psychometric Hepatic Encephalopathy Score (PHES) remains a 'gold standard' for the assessment of minimal HE, but its results clearly differ between studied populations. We...

The active infrared thermography, using external energy source to produce a thermal contrast between the feature of interest and the background, is relatively new NDT technique. The microwaves applied in this method as the source of energy, effectively shorten the time needed to receive observable thermal image at the surface of examined specimen....

Recent developments in non-destructive evaluation (NDE) have concentrated in two directions: 1) sensors and arrays for local material/defect detection at both macro and/or micro levels; 2) large-scale component imaging and monitoring such as thermography. In this paper, microwave heating is proposed for defect detection of glass fibre reinforced pl...

Active infrared thermography is one of the most popular NDT techniques. In this method an external energy source is used to produce the temperature difference between the feature of interest in examined specimen and the background. Thermovision cameras are used do observe obtained temperature differences. The variety of external energy sources can...

Recent studies suggest that stage-independent symptoms of primary biliary cirrhosis (PBC) such as chronic fatigue are a consequence of structural and functional abnormalities of the brain. Critical flicker frequency (CFF) is a psychophysiological modality analysing function of cerebral cortex. To analyse the usefulness of CFF in detection of brain...

Nonalcoholic fatty liver disease (NAFLD) includes a wide spectrum of liver diseases, ranging from pure steatosis to nonalcoholic steatohepatitis (NASH), and eventually to liver cirrhosis with its complications. Identifying advanced fibrosis in patients is crucial to evaluating prognosis and possible therapeutic intervention. A novel, simple, and hi...

Landmines, still affecting many territories in the whole world, pose a serious threat not only to soldiers involved in numerous military conflicts, but first of all -to civilians. Therefore it is extremely important to work on improving the methods of landmines' detection and elimination. Nowadays the metal detector is commonly used in demining. Th...

The Model for End-Stage Liver Disease (MELD) predicts mortality on the transplant list; however, it has not been of much use to predict posttransplant outcomes. Several prognostic models have been tested among patients with cirrhosis; nevertheless, their predictive value has not been established in the posttransplant setting. We recently modified t...

Active infrared thermography is a relatively new NDT method, used in many applications. In this method the external energy source is used to induce thermal differences between the background and the region of interest in examined materials. The type of energy source is chosen for a specific application. In this paper the active infrared thermograph...