He has experience in the field of Mechanical Engineering, with an emphasis on aeronautical structures in composite materials, as well as in the mechanics and dynamics of solid, elastic, and plastic bodies. His main research topics include the development of a Structural Health Monitoring (SHM) system, NDT methods applied to SHM systems, theoretical and experimental studies of smart material structures, determination of effective coefficients, bonded joints, uncertainties associated with the manufacturing process, finite element analysis, solid mechanics, and methodologies for vibration reduction/isolation. He develops research projects and collaborations with Katholieke Universiteit Leuven (Belgium), the University of Porto (Portugal), the University of Havana (Cuba), the Universidad Tecnológica Metropolitana (Chile), and the University of Bologna (Italy).
EDUCATION
He holds a degree in Industrial Mechanical Engineering from the Regional Integrated University of Alto Uruguai and the Missions - URI (2008). He earned a Masters degree in Mechanical Engineering, with an emphasis on aeronautical structures, from the São Carlos School of Engineering, University of São Paulo - EESC/USP (2012). He obtained a Ph.D. under a dual-degree program in Mechanical Engineering, with an emphasis on aeronautical structures, from the São Carlos School of Engineering, University of São Paulo - EESC/USP, and in Engineering Science from the Faculty of Engineering Science, Katholieke Universiteit Leuven - KU Leuven (2016). He participated in the PDSE - Sandwich Ph.D. Program Abroad.
RESEARCH, TEACHING, or OTHER INTERESTS
Mechanical Engineering, Aerospace Engineering, Materials Science, Mechanics of Materials
Mechanical, Thermal, and Microstructural Evaluation of Bio-Based Polyurethane Composites Reinforced With Woven Jute and Flax Vanessa A. Santos, Kelvin M. K. Iwasaki, Felipe Ruivo Fuga, Ricardo De Medeiros Polymer Composites, 2026 Natural‐fiber composites have gained attention as sustainable alternatives to synthetic‐fiber materials. However, their performance is still limited by fiber‐matrix adhesion, moisture sensitivity, and variability in mechanical properties. In this study, bio‐based polyurethane (PU) composites reinforced with woven jute and flax fabrics were manufactured using a vacuum‐assisted resin transfer molding (VARTM) process. The materials were characterized through density measurements, Fourier‐transform infrared spectroscopy (FTIR), X ‐ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and mechanical testing. Mechanical characterization was performed through tensile tests (ASTM D3039, ASTM D3518), where Digital Image Correlation (DIC) was employed to calculate elastic properties (, , , and ). Additional analyses included flexural testing (ASTM D790). Flax‐reinforced composites exhibited the highest tensile and flexural performance, while jute‐reinforced composites showed superior thermal stability. SEM analyses revealed interfacial voids and incomplete fiber wetting, consistent with the observed mechanical behavior. These findings demonstrate the feasibility of using castor oil–based PU with natural fiber reinforcements for eco‐friendly structural applications.
Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros Journal of Field Robotics, 2026 Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers. This review critically examines the use of composites in robotics, with a focus on their structural, active, and sensory functions. A systematic literature review based on an adapted PRISMA framework identified over 100 publications from 1988 to 2026, revealing continuous research growth and rising interest in soft robotics, piezoelectric composites, and carbon‐based structures. In contrast, bioinspired systems have declined due to integration and manufacturing challenges. Despite the progress, major barriers remain, particularly scalability, long‐term reliability, and cost. This work proposes a functional taxonomy of composites in robotics and outlines future directions, including sustainable bio‐based materials, multimaterial additive manufacturing, and 4D‐printed adaptive systems. By integrating materials science and robotics, this review provides a concise roadmap, in composite structures, for developing high‐performance, multifunctional, and sustainable robotic technologies.
Parametric study of bonded composite joints under mixed-mode Jailto A.P. da Silva, Rafael Beck, Lucas F.M. da Silva, Volnei Tita, Ricardo De Medeiros Journal of Composite Materials, 2025 Composite aircraft structures have been thoroughly investigated with regard to various loading combinations, which are capable of inducing different failure modes. The failure modes, particularly the fracture energies associated with modes I and II, are influenced by geometric and material variations, contributing to both epistemic and intrinsic uncertainties. The present work introduces a numerical-experimental methodology to simulate the Mixed Mode Bending (MMB) test conducted on specimens manufactured with carbon fibre and epoxy resin adherents and a ductile-based epoxy adhesive. The methodology employs a two-dimensional finite element model developed in Abaqus ® software aided by a Python ® routine. The Design of Experiments (DoE) technique, based on the Plackett-Burman Design (PBD) method, is applied to reduce the number of simulations needed. To assess the impact of mechanical and geometric variables on fracture strength responses in various mixed-mode ratios, the Compliance-Based Beam Method (CBBM) adapted for the MMB test is used, following the ASTM D6671 standard. The numerical model uses 4-node cohesive elements (COH2D4) for the adhesive layer and 4-node plane strain elements (CPE4R) for the composite adherents, with the loading system modelled through two-node linear rigid links (R2D2). A triangular traction-separation law (TSL) is adopted to simulate adhesive behaviour, allowing validation against experimental results from the literature. The methodology, considering the investigated materials, was applied to mixed-mode ratios of 25%, 50%, 60%, and 75%, and results showed that at 25%, the influence of mode I fracture energy ( G Ic ) was only 8% lower than that of mode II ( G IIc ), whereas at higher ratios the difference exceeded 270%, highlighting the increasing dominance of mode II mechanisms. The numerical model consistently predicted fracture loads conservatively compared to experimental values, and the statistical analysis identified that mode II fracture energy and adhesive modulus are key parameters influencing bonded joint strength. The total mixed-mode fracture energy ( G Tc , MMB ) resulting from CBBM was used to determine the Main Effect (ME), clearly ranking the parameters that most affect the mechanical behaviour of the bonded joint. These results demonstrate the effectiveness and robustness of the proposed methodology for assessing bonded composite joints under complex mixed-mode conditions.
Assessing critical fracture energy in mode I for bonded composite joints: A numerical–experimental approach with uncertainty analysis Rafael Beck, Jailto Antonio Prado da Silva, Lucas FM da Silva, Volnei Tita, Ricardo de Medeiros Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, 2025 The manufacturing process of composite structural components involves the assembly of composite parts using adhesives, which introduces variations in the geometrical and mechanical properties of bonded joints. The fracture energy under mode-I loading ( G I c ) is a parameter used to predict crack propagation and evaluate the residual strength of the joint. This work proposes a numerical-experimental procedure to determine G I c in mode I, while considering the uncertainties inherent in the manufacturing process of bonded joints. The proposed procedure employs a three-dimensional finite element model to simulate a double cantilever beam test, using finite element commercial software. The cohesive zone model is applied to simulate the mechanical behavior of the adhesive, and experimental data are used to feed the computational model. A Plackett-Burman design is performed to reduce the number of experiments and evaluate the effect of the main influence parameters. Force-displacement curves are obtained, the compliance-based beam method is applied to determine G I c in mode I, employing both trapezoidal and triangular traction-separation laws. The results are thoroughly examined, taking into account the potential strengths and limitations of the proposed procedure, particularly in its application to predicting the behavior of bonded composite joints under mode I loading conditions. The proposed approach can help to understand the uncertainties effect related to the manufacturing process of bonded joints on G I c values, and improve the reliability of predicting crack propagation and residual strength assessment in bonded joints.
Analytical, Experimental, and Finite Element Analysis of Buckling and Wrinkling Failure Modes in Carbon/PVC Sandwich Panels João Alberto Günther Neto, Felipe Ruivo Fuga, Ricardo De Medeiros Journal of Composites and Biodegradable Polymers, 2025 Carbon fibre–reinforced PVC foam sandwich composites are widely used in aeronautical and marine structures due to their high strength-to-weight ratio. However, the stiffness mismatch between face sheets and cores may lead to local buckling modes such as face wrinkling and shear crimping when subjected to compressive loads. Therefore, this study presents a comprehensive investigation on the interaction between global and local buckling modes for sandwich beam structures with lengths varying between 45 and 500 mm subjected to compressive loads, through the comparison of analytical and finite element models using Abaqus® software. Analytical results show a critical force of 3481.1 N and 4017.5N for face sheet wrinkling and shear crimping, respectively. Numerical predictions for both phenomena present a maximum error of approximately 1%, showing that local buckling can be predicted independently of the slenderness ratio of the beam, as suggested by the analytical formulation. However, even for slender beams, the critical buckling load showed a coupling to local behaviour, reducing the corresponding eigenvalue. A maximum deviation of approximately 8% was obtained between analytical and numerical predictions. Finally, an experimental procedure was carried out to observe the associated buckling shapes. As indicated by analytical and numerical predictions, the specimen displayed a local buckling failure mechanism, however, at a much smaller load value related to geometric imperfections and asymmetric boundary conditions. Therefore, the study establishes a validation between analytical and numerical frameworks for predicting local instability failures in CFRP/PVC sandwich structures, providing a tool for engineers to the design of sandwich panels for enhanced structural performance and lightweight and safe components.
Modeling of smart piezoelectric sensors: Determining effective properties with interfacial bonding conditions Material Modelling Applications Challenges and Research, 2017
A new SHM methodology applied on composite plates Proceedings of ISMA 2016 International Conference on Noise and Vibration Engineering and Usd2016 International Conference on Uncertainty in Structural Dynamics, 2016
SHM of composite plates: Vibration based method by using PZT sensors Proceedings of ISMA 2014 International Conference on Noise and Vibration Engineering and Usd 2014 International Conference on Uncertainty in Structural Dynamics, 2014
Damage detection in carbon fiber filament winding cylinders Eccm 2012 Composites at Venice Proceedings of the 15th European Conference on Composite Materials, 2012
Numerical and experimental analyses about SHM metrics using piezoelectric materials International Conference on Noise and Vibration Engineering 2012 ISMA 2012 Including Usd 2012 International Conference on Uncertainty in Structure Dynamics, 2012
RECENT SCHOLAR PUBLICATIONS
Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review D Negri, GW Oening, FAC de Faria, SM Schroeder, R De Medeiros Journal of Field Robotics , 2026 2026
Incorporation of carbon-based nanoparticles into epoxy adhesives: Enhancing mechanical properties through plasma functionalization and morphology analysis EJ Sehnem, LG Silva Rosa, LC Fontana, R De Medeiros, D Becker Journal of Composite Materials 60 (10), 925-939 , 2026 2026
Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax VA Santos, KMK Iwasaki, F Ruivo Fuga, R De Medeiros Polymer Composites , 2026 2026
Mode I energy release rate for bio-based bonded joints using metallic and natural fibre substrates R Kniess Ronchi, F Ruivo Fuga, CV Opelt, R De Medeiros Journal of the Brazilian Society of Mechanical Sciences and Engineering 48 … , 2026 2026
Development of Sensors for Structural Health Monitoring in Aerospace Applications by Using a Machine Learning Approach RU Silva, R de Medeiros, H Brito-Santana, J Paulo, P do Carmo, V Tita e-Journal of Nondestructive Testing 31 (2), 1-12 , 2026 2026
Modeling Interphase Degradation to Assess Its Impact on the Electromechanical Response of Smart Laminated Composites J Longo, C Rodríguez-Cifuentes, H Brito-Santana, R Rodríguez-Ramos, ... e-Journal of Nondestructive Testing 31 (2), 1-12 , 2026 2026
Damage Detection and Finite Element Modelling Using a Thermoformed Electret as a Polymeric Piezoelectric Sensor F Fuga, G Giovanella, MC Neto, JPP Carmo, V Tita, R De Medeiros e-Journal of Nondestructive Testing 31 (2), 1-12 , 2026 2026
Analytical, Experimental, and Finite Element Analysis of Buckling and Wrinkling Failure Modes in Carbon/PVC Sandwich Panels JAG Neto, FR Fuga, R de Medeiros Journal of Composites and Biodegradable Polymers 13, 109-118 , 2025 2025
Analysing the influence of delamination on composite structures using modal analysis and statistical indices M Zanetti, D Negri, D Vandepitte, V Tita, R De Medeiros Composite Structures 371, 119427 , 2025 2025 Citations: 3
Mechanical Characterization of Natural and Synthetic Fibres using Sandwich Structures Under Bending JAG Neto, WC Scheffer, FR Fuga, R De Medeiros Journal of Modern Mechanical Engineering and Technology 12, 34-44 , 2025 2025 Citations: 1
Effective properties of viscoelastic piezoelectric materials using homogenisation on representative volume finite elements FR Fuga, YM Naranjo, R Rodríguez-Ramos, JA Otero, V Tita, ... Composites Part C: Open Access 18, 100663 , 2025 2025
Non-deterministic damage analysis of DCB bonded composite joints using a surrogate model JAP da Silva, R Beck, RJC Carbas, LFM da Silva, AJM Ferreira, ... International Journal of Adhesion and Adhesives, 104167 , 2025 2025
Influence of layer orientation on the mechanical properties of fused deposition modelling using PLA and PETG LLB Ramos, KMK Iwasaki, R Beck, WC Scheffer, FR Fuga, R de Medeiros Materialia, 102541 , 2025 2025 Citations: 3
Assessing critical fracture energy in mode I for bonded composite joints: A numerical–experimental approach with uncertainty analysis R Beck, JAP da Silva, LFM da Silva, V Tita, R de Medeiros Proceedings of the Institution of Mechanical Engineers, Part L: Journal of … , 2025 2025 Citations: 11
Parametric study of bonded composite joints under mixed-mode JAP da Silva, R Beck, LFM da Silva, V Tita, R De Medeiros Journal of Composite Materials, 00219983251343134 , 2025 2025 Citations: 3
Advances in modeling and simulation flow dynamics in vacuum assistant resin transfer molding process for composite structures KBV Silveira, MV Canhoto Alves, RD Medeiros The International Journal of Advanced Manufacturing Technology 136 (11 … , 2025 2025 Citations: 6
Development of a numerical and analytical methodology for analyzing hybrid laminates with multi-oriented piezoelectric and structural layers J Longo, MR Silva, H Brito-Santana, AJM Ferreira, V Tita, R de Medeiros Composite Structures 349, 118506 , 2024 2024 Citations: 3
Detection of changes in dynamic characteristics of composite structures using Kriging metamodeling procedure: Experimental and computational analysis KA Possenti, VGS de Menezes, D Vandepitte, V Tita, R Medeiros Mechanics of Advanced Materials and Structures 31 (25), 7434-7451 , 2024 2024 Citations: 7
Parametric investigation of bonded composite joints under Mode II using a new methodology based on design of experiments JAP da Silva, LFM da Silva, AJM Ferreira, V Tita, R De Medeiros The Journal of Adhesion 100 (9), 791-812 , 2024 2024 Citations: 5
Optimising hyperparameters of artificial neural network topology for SHM damage detection and identification L Rosenstock Völtz, M Janczkowski Fogaça, E Lenz Cardoso, ... Journal of Failure Analysis and Prevention 24 (2), 955-975 , 2024 2024 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Different approaches for calculating the effective elastic properties in composite materials under imperfect contact adherence R Rodriguez-Ramos, R de Medeiros, R Guinovart-Diaz, ... Composite Structures 99, 264-275 , 2013 2013 Citations: 62
A finite element formulation for smart piezoelectric composite shells: Mathematical formulation, computational analysis and experimental evaluation M Sartorato, R de Medeiros, V Tita Composite Structures 127, 185-198 , 2015 2015 Citations: 60
A comparative assessment of different frequency based damage detection in unidirectional composite plates using MFC sensors R de Medeiros, M Sartorato, D Vandepitte, V Tita Journal of Sound and Vibration 383, 171-190 , 2016 2016 Citations: 50
Different interface models for calculating the effective properties in piezoelectric composite materials with imperfect fiber–matrix adhesion H Brito-Santana, R de Medeiros, R Rodriguez-Ramos, V Tita Composite Structures 151, 70-80 , 2016 2016 Citations: 49
Numerical and analytical analyses for active fiber composite piezoelectric composite materials R de Medeiros, R Rodríguez-Ramos, R Guinovart-Díaz, ... Journal of Intelligent Material Systems and Structures 26 (1), 101-118 , 2015 2015 Citations: 47
Effective properties evaluation for smart composite materials R Medeiros, ME Moreno, FD Marques, V Tita Journal of the Brazilian Society of Mechanical Sciences and Engineering 34 … , 2012 2012 Citations: 42
Computational model for supporting SHM systems design: Damage identification via numerical analyses M Sartorato, R De Medeiros, D Vandepitte, V Tita Mechanical Systems and Signal Processing 84, 445-461 , 2017 2017 Citations: 36
Visco-elastic-plastic properties of suture fibers made of PLA-PCL AC Vieira, R Medeiros, RM Guedes, AT Marques, V Tita Materials Science Forum 730, 56-61 , 2013 2013 Citations: 36
Dynamic response of laminated composites using design of experiments: An experimental and numerical study LF dos Santos Souza, D Vandepitte, V Tita, R De Medeiros Mechanical Systems and Signal Processing 115, 82-101 , 2019 2019 Citations: 35
Structural health monitoring for impact damaged composite: a new methodology based on a combination of techniques R De Medeiros, D Vandepitte, V Tita Structural Health Monitoring 17 (2), 185-200 , 2018 2018 Citations: 32
Multiscale analysis for predicting the constitutive tensor effective coefficients of layered composites with micro and macro failures H Brito-Santana, JLM Thiesen, R de Medeiros, AJM Ferreira, ... Applied Mathematical Modelling , 2019 2019 Citations: 30
A New Methodology for Structural Health Monitoring Applications R de Medeiros, HMR Lopes, RM Guedes, MAP Vaz, D Vandepitte, V Tita Procedia Engineering 114, 54-61 , 2015 2015 Citations: 30
Effective properties evaluation for smart composite materials with imperfect fiber–matrix adhesion V Tita, R de Medeiros, FD Marques, ME Moreno Journal of Composite Materials 49 (29), 3683-3701 , 2015 2015 Citations: 28
Chemical modification of sugarcane bagasse and sisal fibers using hydroxymethylated lignin: Influence on impact strength and water absorption of phenolic composites SPS Tita, R Medeiros, JR Tarpani, E Frollini, V Tita Journal of Composite Materials 52 (20), 2743-2753 , 2018 2018 Citations: 25
Development of a criterion for predicting residual strength of composite structures damaged by impact loading R De Medeiros São Carlos School of Engineering - University of São Paulo and KU Leuven , 2016 2016 Citations: 25
Damage detection of composite beams using vibration response and artificial neural networks PA Reis, KMK Iwasaki, LR Voltz, EL Cardoso, RD Medeiros Proceedings of the Institution of Mechanical Engineers, Part L: Journal of … , 2022 2022 Citations: 24
Effective elastic properties of layered composites considering non-uniform imperfect adhesion H Brito-Santana, R de Medeiros, AJM Ferreira, R Rodríguez-Ramos, ... Applied Mathematical Modelling 59, 183-204 , 2018 2018 Citations: 24
Experimental and numerical dynamic analysis of laminate plates via Carrera Unified Formulation ML Ribeiro, GFO Ferreira, R de Medeiros, AJM Ferreira, V Tita Composite Structures 202, 1176-1185 , 2018 2018 Citations: 23
Comparison between mechanical properties of bio and synthetic composites for use in aircraft interior structures FS Eloy, RRC Costa, R De Medeiros, ML Ribeiro, V Tita Meeting on Aeronautical Composite Materials and Structures (MACMS2015) , 2015 2015 Citations: 22
Computational methodology of damage detection on composite cylinders: structural health monitoring for automotive components RD Medeiros, ML Ribeiro, V Tita International Journal of Automotive Composites 1 (1), 112-128 , 2014 2014 Citations: 22