Henrique Coelho Fernandes

Henrique Coelho Fernandes
Universidade Federal de Uberlândia (UFU) | UFU · Faculty of Computing (FACOM)

Ph.D. in Electrical Engineering
Always looking for new collaborations.

About

72
Publications
12,543
Reads
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821
Citations
Introduction
Prof. Fernandes holds a Ph.D. in Electrical Engineering from Laval University (Canada). He is currently an assistant professor at the Federal University of Uberlandia (Brazil) acting in the Graduate Program in Computer Science and in the Graduate Program in Mechanical Engineering. His major research interests are: non-destructive testing and evaluation, structural health monitoring, infrared thermography, machine learning, and composite materials. http://www.facom.ufu.br/~henrique
Additional affiliations
March 2019 - February 2021
Fraunhofer Institute for Nondestructive Testing IZFP
Position
  • Professor
September 2016 - present
Universidade Federal de Uberlândia (UFU)
Position
  • Professor (Associate)
January 2012 - December 2015
Laval University
Position
  • PhD Student
Education
January 2012 - December 2015
Laval University
Field of study
  • Electrical Engineering
August 2009 - October 2011
Universidade Federal de Uberlândia (UFU)
Field of study
  • Computer Science
July 2005 - June 2009
Universidade Federal de Uberlândia (UFU)
Field of study
  • Computer Science

Publications

Publications (72)
Article
Fiber orientation in composite materials is an important feature since the arrangement or orientation of the fibers relative to one another has a significant influence on the strength and other properties of fiber reinforced composites. In this paper we present a method to assess the fiber orientation on the surface of carbon fiber reinforced polym...
Article
In this paper, an infrared thermography technique is used to assess the fiber orientation on the surface of carbon fiber reinforced polymer (CFRP) moulded with randomly-oriented strands (ROS). Due to the randomness of the material, a point by point inspection would be very time consuming. In this paper it is proposed to use a flying laser spot tech...
Article
Full-text available
Infrared thermography (IT) is a safe non-destructive evaluation technique that has a fast inspection rate and is generally contactless. It is used for diagnostics and monitoring in several fields including composite materials. In this paper carbon fiber-reinforced polymer plates submitted to tensile testing are inspected using IT. More specifically...
Article
Full-text available
Advanced materials such as continuous carbon fiber-reinforced thermoplastic (CFRP) laminates are commonly used in many industries, mainly because of their strength, stiffness to weight ratio, toughness, weldability, and repairability. Structural components working in harsh environments such as satellites are permanently exposed to some sort of dama...
Article
The early detection of breast cancer is a vital factor when it comes to improving cure and recovery rates in patients. Among such early detection factors, one finds thermography, an imaging technique that demonstrates good potential as an early detection method. Convolutional neural networks (CNNs) are widely used in image classification tasks, but...
Article
Full-text available
Thermography has been employed broadly as a corresponding diagnostic instrument in breast cancer diagnosis. Among thermographic techniques, deep neural networks show an unequivocal potential to detect heterogeneous thermal patterns related to vasodilation in breast cancer cases. Such methods are used to extract high-dimensional thermal features, kn...
Article
Full-text available
Advanced materials are widely used in many industries. They play an important role especially in the aeronautic and automotive sectors where weight reduction is required in order to reduce fuel consumption. Composite materials have a high strength to weight ratio and are applied in airplane construction. Nevertheless, sometimes it is not viable to...
Article
In this work, infrared thermography is used to detect defects on a 3D hybrid aluminium-CFRP composite structure. First, radiometric calibration and geometric distortion correction are performed for 3D inspection. Second, we propose a new unsupervised probabilistic low-rank component factorization thermographic de-noising model to improve image perf...
Article
Full-text available
Non-destructive testing of objects and structures is a valuable tool, especially in cultural heritage where the preservation of the inspected sample is of vital importance. In this paper, a decorative marquetry sample is inspected with three non-destructive testing (NDT) techniques: air-coupled ultrasound, X-ray micro-tomography, and infrared therm...
Conference Paper
Full-text available
Pulsed thermography is one of the most popular thermography inspection methods. During an experiment of pulsed thermography, a specimen is quickly heated, and infrared images are captured to provide information about the specimen’s surface and subsurface conditions. Adequate transformations are usually performed to enhance the contrast of the therm...
Conference Paper
Breast cancer is a disease that affects many women throughout the world. It is the second most common type of cancer. The early diagnosis of the disease is relevant for increasing the chances of the patient recovering. Thermography is a promising technique that might be used to help the early diagnosis of breast cancer. In this work, we use three s...
Article
Full-text available
Early diagnosis of breast cancer unequivocally improves the survival rate of patients and is crucial for disease treatment. With the current developments in infrared imaging, breast screening using dynamic thermography seems to be a great complementary method for clinical breast examination (CBE) prior to mammography. In this study, we propose a sp...
Article
Full-text available
This work investigates the application of lock-in thermography approach for solar loading thermography applications. In conventional lock-in thermography, a specimen is subjected to a periodically changing heat flux. This heat flux usually enters the specimen in one of three ways: by a point source, a line source or an extended source (area source)...
Conference Paper
Full-text available
Advanced materials such as composite materials are extensively used in military and civil aeronautical industries due to their excellent specific mechanical properties. Techniques and protocols to ensure the quality of parts, components, and structures made with such class of advanced materials, both in the manufacturing stage and throughout its li...
Conference Paper
Full-text available
Non-destructive testing of objects and structures is a valuable tool. Specially in cultural heritage where the preservation of the inspected sample is of vital importance. In this paper, a decorative marquetry sample is inspected with three NDT techniques: air-couple ultrasound, computed-tomography scan and infrared thermography. Results from the t...
Conference Paper
Full-text available
Advanced materials are widely used in several industries. They play an important role especially in the aeronautic sector where weight reduction is required in order to reduce fuel consumption. Composite materials have a high strength to weight ratio and are applied in airplane construction. In order to ensure the safety of these components during...
Article
Full-text available
Estimating the correct respiratory rate (RR) is an essential technique for intensive care units, hospitals, geriatric hospital facilities, and home care services. Capnography is a standard methodology used to monitor carbon dioxide concentrations or partial pressures of respiratory gases to provide the most accurate RR measurements. However, it is...
Article
Most of the thermal problems in engineering involve transient three-dimensional models of complex numerical or analytical solution. In some cases, the three-dimensional problems can be reduced. The use of simplified models to the inverse problem's solution has some advantages, such as: reduction in computational time and disregard some boundary con...
Article
Full-text available
Breast cancer accounts for the highest number of female deaths worldwide. Early detection of the disease is essential to increase the chances of treatment and cure of patients. Infrared thermography has emerged as a promising technique for diagnosis of the disease due to its low cost and that it does not emit harmful radiation, and it gives good re...
Article
Full-text available
This work presents a simplified approach for the early detection of breast cancer using thermographic images, showing that several thermophysical properties of the bio-thermal problem does not need to be previously known to locate the geometric center of tumors. A 3D hemispheric breast model composed of different layers (muscle, gland, fat and skin...
Article
Full-text available
Breast cancer kills a large number of women around the world. Infrared thermography is a promising screening technique which does not involve harmful radiation for the patient and has a relatively low cost. This work proposes an approach for classifying patients into three different classes using infrared images: healthy patients, patients with ben...
Article
Full-text available
Ceramic-coated materials used in different engineering sectors are the focus of world-wide interest and have generated a need for inspection techniques that detect very small structural anomalies. Non-destructive testing is increasingly being used to evaluate coating thickness and to test for coating flaws. The main pros of non-destructive testing...
Chapter
Full-text available
Thermal conductivity is one of the most important physical properties of a material. Several techniques found in the literature are used in the determination of the thermal conductivity. For thermal insulation materials, the hot wire method is the most commonly used technique. The objective of this work is estimated experimental thermal conductivit...
Article
Full-text available
In this work was used infrared imagery to estimate thermal properties of solid materials. The Two Superficial Hot Points Technique (TSHP) was proposed and it uses heat flux and temperatures measured from a single surface of the sample to estimate the thermal diffusivity and conductivity of the material. By definition, the two parameters to be estim...
Article
Full-text available
Breast cancer is the second most common type of cancer among women after nonmelanoma skin cancer. Use of mammography, the main method to diagnose the disease, has several limitations in parts of the population. The primary goal of this work was to detect and localize the geometric centers of mammary tumors using only superficial temperatures of the...
Article
Full-text available
Composite materials are being successfully used in aeronautics for more than two decades. This great success is mainly because this kind of materials is typically lighter when compared to metals and more resistant to corrosion. Resistance and stiffness of composite materials are usually related to their fiber orientation. The development of non-des...
Article
Weak magnetic stress detection is an important issue in oil–gas pipeline internal detection area. In order to verify the characteristics of weak magnetic stress internal detection signals, we built herein a magneto-mechanics equivalent model having a balanced magnetic field. First, we calculated the relationship between the stress and the weak magn...
Article
Full-text available
The interest toward lightweight composites in the aeronautical industry grows year by year. The challenge is the identification and characterization of defects by using an integration of different techniques. The use of the infrared thermography (IRT) method for the inspection of lightweight composites is poorly documented in the open literature, d...
Article
Full-text available
In order to study the stress detection method on long-distance oil and gas pipeline, the distribution characteristics of the surface remanence signals in the stress concentration regions must be known. They were studied by using the magnetic domain model in the non magnetic saturation state. The finite element method was used herein with the aim to...
Article
Full-text available
Diagnostics of tumors using thermal cameras are generally conducted in adjuvant examinations because infrared images detect radiation that translates to surface temperature measurements. That is, it is not feasible to detect the location and tumor size using only the direct thermal images. The objective of this work is to develop a new technique th...
Chapter
Full-text available
Breast cancer is the most common type of cancer among women. Cancer cells are characterized by having a higher metabolic activity and superior vascularization when compared to healthy cells. The internal heat generated by tumors travels to the skin surface where an infrared camera is capable of detecting small temperatures variations on the dermal...
Article
In order to study the effects of magnetic memory signals affected by the external magnetic field, the magnetic domain model is used herein to quantify the distribution characteristics of the surface of the magnetic signals linked to the stress concentration areas. By using the method of finite element (FE) analysis, the magneto-mechanical model of...
Article
Full-text available
Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize basalt, jute/hemp and bagasse fibers composite panels. Different defects were analyzed in terms of...
Article
Full-text available
The use of fiber reinforced materials such as randomly-oriented strands has grown in recent years, especially for manufacturing of aerospace composite structures. This growth is mainly due to their advantageous properties: they are lighter and more resistant to corrosion when compared to metals and are more easily shaped than continuous fiber compo...
Article
Full-text available
In this paper, an infrared pre-processing modality is presented. Different from a signal smoothing modality which only uses a polynomial fitting as the pre-processing method, the presented modality instead takes into account the low-order derivatives to pre-process the raw thermal data prior to applying the advanced post-processing techniques such...
Article
Full-text available
In this work, the potentialities of the infrared vision to explore sub-superficial defects in polychromatic statues were investigated. In particular, it was possible to understand how the reflector effect of the exterior golden layers could be minimized, applying advanced statistical algorithms to thermal images. Since this noble metal is present a...
Article
In this paper, optical and mechanical excitation thermography were used to investigate basalt fiber reinforced polymer (BFRP), carbon fiber reinforced polymer (CFRP) and basalt-carbon fiber hybrid specimens subjected to impact loading. Interestingly, two different hybrid structures including sandwich-like and intercalated stacking sequence were use...
Conference Paper
In this paper, thermographic inspections, ultrasonic C-scan and terahertz imaging were used to detect damages caused by impacts in natural, non-natural and hybrid composites. In particular, different hybrid structures were used. In some samples, numerical simulations were performed to predict the damage. A comparison of the results based on experim...
Article
Full-text available
Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular, continuous wave (CW) and low frequency THz is attracting more attention. The first application of the THz technique inherent to the cultural heritage field dates back 10 years ago. Since 2006, tangible improvements have been conducted in the refinement of th...
Article
Stitching is used to reduce incomplete infusion of T-joint core (dry-core) and reinforce T-joint structure. However, it may cause new types of flaws, especially submillimeter flaws. Thermographic approaches including microvibrothermography, microlaser line thermography, and microlaser spot thermography on the basis of pulsed and lock-in techniques...
Article
Traditional pipeline magnetic flux leakage (MFL) internal technology mainly uses axial excitation method, which could not recognize the narrow crack defects in the axial direction of the pipe. In this paper, by using a linear magnetic dipole model to study the circumferential excitation method, the detection model of axial crack in pipeline is esta...
Article
In this article, pulsed micro-laser line thermography (pulsed micro-LLT) was used to detect the submillimeter porosities in a 3D preformed carbon fiber reinforced polymer composite specimen. X-ray microcomputed tomography was used to verify the thermographic results. Then, finite element analysis was performed on the corresponding models on the bas...
Article
Composite materials are widely used in the aeronautic industry. One of the reasons is because they have strength and stiffness comparable to metals, with the added advantage of significant weight reduction. Infrared thermography (IT) is a safe nondestructive testing technique that has a fast inspection rate. In active IT, an external heat source is...
Article
Metal magnetic memory (MMM) testing technology has been effectively used in stress concentration areas and micro-cracks detection of ferromagnetic metal components. However, due to the lack of profound theoretical basis and effective experimental research, the magnetic memory signal characteristics and magnetism quantitative relationship has not ye...
Article
In this article, optical excitation thermographic techniques, including pulsed thermography and lock-in thermography, were used to detect foreign object defect (FOD) and delamination in CFRP. Then, vibrothermography as an ultrasonic excitation technique was used to detect these defects for the comparative purposes. Different image processing method...
Conference Paper
Infrared Thermography (IRT) is a well-known Non-destructive Testing (NDT) technique. In the last decades, it has been widely applied in several fields including inspection of composite materials (CM), specially the fiber-reinforced polymer matrix ones. Consequently, it is important to develop and improve efficient NDT techniques to inspect and asse...
Conference Paper
Stitching is used to reduce dry-core and reinforce T-joint structure. However, it might cause new types of flaws, especially submillimeter flaws. In this paper, new approaches including micro-VT, lock-in micro-LLT and micro-LST based on both lock-in and pulse methods are used to detect submillimeter flaws in stitched CFRP. A comparison of laser exc...
Article
Stitching is used to reduce incomplete infusion of T-joint core (dry-core) and reinforce T-joint structure. However, it might cause new types of flaws, especially micro-sized flaws. In this paper, a new micro-laser line thermography (micro-LLT) is presented. X-ray micro-computed tomography (micro-CT) was used to validate the infrared results. The m...
Article
Stitching is used to reduce dry-core (incomplete infusion of T-joint core) and reinforce T-joint structure. However, it may cause new types of flaws, especially submillimeter flaws. Microscopic inspection, ultrasonic c-scan, pulsed thermography, vibrothermography, and laser spot thermography are used to investigate the internal flaws in a stitched...
Conference Paper
Full-text available
Fiber orientation in composite materials is an important feature since the arrangement or orientation of the fibers relative to one another has a significant influence on the strength and other properties of fiber-reinforced composites. In this paper we present a method to assess the fiber orientation on the surface of carbon fiber–reinforced polym...
Conference Paper
Full-text available
In this paper, the authors use infrared thermography and X-Ray Tomography to inspect micro-porosities (diameter 0.2mm to 2mm). By using a micro-lens (1X) and laser line thermography scanning technique (LLT), the authors define a micro-infrared thermography technique and successfully inspect massive micro-porosities of 3D CFRP. In addition, the auth...
Article
The use of composite materials is growing more and more every day in several applications. The arrangement or orientation of the fibers relative to one another have a significant influence on the strength and other properties of fiber reinforced composites. Thus, evaluation techniques are needed for measuring material fiber orientation. In this wor...
Conference Paper
The use of composite materials is growing more and more every day in several applications. The arrangement or orientation of the fibers relative to one another have a significant influence on the strength and other properties of fiber reinforced composites. Thus, evaluation techniques are needed for measuring material fiber orientation. In this wor...
Conference Paper
Fiber orientation in composite materials is an important feature since the material’s strength and stiffness are related to the fiber orientation. In this paper, non-destructive infrared thermography is used to assess fiber orientation of carbon/PEEK (Polyether ether ketone) laminates on the surface and subsurface of the material. Specifically, a n...
Conference Paper
Full-text available
Carbon-fiber reinforced composites are widely used in the industry. One of the key features regarding their quality and usefulness is related to the fiber orientation and contend. One technique that is used to test this kind of material is Infrared Thermography (IT). In this paper it is presented a technique based on diode-laser spot heating to mea...