A5082173633- Mechanical Behavior of Composites
- Structural Analysis of Composite Materials
- Fatigue and fracture mechanics
- Epoxy Resin Curing Processes
- Structural Load-Bearing Analysis
- Structural Behavior of Reinforced Concrete
- Fiber-reinforced polymer composites
- Fire effects on concrete materials
- Transportation Safety and Impact Analysis
- Aging, Elder Care, and Social Issues
- Natural Fiber Reinforced Composites
- Dental materials and restorations
- Electronic Packaging and Soldering Technologies
- Eating Disorders and Behaviors
- Venous Thromboembolism Diagnosis and Management
- Photopolymerization techniques and applications
- Mechanical stress and fatigue analysis
- Optical measurement and interference techniques
- Manufacturing Process and Optimization
- Ultrasonics and Acoustic Wave Propagation
- Material Properties and Applications
- Viral-associated cancers and disorders
- Structural Health Monitoring Techniques
- Design Education and Practice
- Pelvic floor disorders treatments
Institute of Mechanical Engineering and Industrial Mangement
2015-2023
Universidade do Porto
2016-2020
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial
2016-2018
National Institute of Statistics and Geography
2017-2018
Structural adhesives are increasingly being used in the aerospace and automotive industries. They allow for light weight vehicles, fuel savings, reduced emissions. However, environmental degradation of adhesive joints is a major setback its wide implementation. Moisture includes plasticization, attacking interface, swelling consequent creation residual stresses. This may lead to reversible irreversible damage. The main factors affecting strength under high low temperatures mechanical...
Adhesive joints have been used in several fields of engineering, and their applications are vast. Due to easy quick fabrication process, single-lap a common configuration. The increase strength, weight reduction resistance corrosion some the advantages this kind joint over traditional joining methods. However, stress concentrations at overlap edges one main disadvantages. There very few accurate design techniques for diversity bonded that can be found real applications, which constitutes an...
In this paper, a combined experimental-numerical method was proposed to study the effect of adhesive thickness on mode I fracture energy layer, using Double Cantilever Beam (DCB) testing and Cohesive Zone Modelling (CZM). A Trapezoidal Model (TCZM) introduced in tabular form into commercial Finite Element (FE) package simulate crack propagation behaviour layer include ductile characteristics selected adhesive. order overcome difficulty accurate monitoring measurement length during loading,...
The use of lightweight materials in the automotive industry for structural parts has been increasing recent years order to reduce overall vehicle's weight. New innovative lighter are being developed nowadays accomplish that objective. In keep or even increase passenger's safety, made these need withstand static and impact loads within a range different temperatures along life. effect conditions when joining dissimilar is critical issue be considered designing car's body. this paper, strength...
In this study the impact and quasi-static mechanical behaviour of single lap joints (SLJ) using a new crash resistant epoxy adhesive has been characterized as function temperature. Single were tested drop weight machine (impact tests) universal test machine. Induction heating nitrogen gas cooling was used in order to achieve homogeneous distribution temperature along overlap + 80 °C −20 °C, respectively. Adherends made mild steel, similar steel automobile construction, chosen yielding effect...
A associação entre disfunção miccional e alteração da função pulmonar ocorre com frequência no idoso. Isso porque o aumento crônico pressão intra-abdominal alterações biomecânica dos músculos respiratórios frequentes nessa faixa etária coincidem disfunções do trato urinário inferior, porém quanto se associam população continua pouco esclarecido. Assim, pesquisou-se a de sintomas inferior (STUI) em homens 60 anos ou mais. Realizou-se um estudo caso-controle, abordando (casos) sem (controles)...
A presença de queixas respiratórias está ligada ao aumento da disfunção sexual em homens mais velhos, uma vez que doenças afetam a vascularização, interferindo na ereção. Homens idosos frequentemente apresentam pressão intraabdominal e comprometimento do diafragma, impactando função respiratória. Este estudo visa estabelecer relação entre partir 50 anos. Foi realizado um caso-controle com (casos) sem (controles) respiratórias, correlacionando sintomas sexual. Os dados foram coletados dois...
A associação entre disfunção miccional e alteração da função pulmonar ocorre com frequência no idoso. Isso porque o aumento crônico pressão intra-abdominal alterações biomecânica dos músculos respiratórios frequentes nessa faixa etária coincidem disfunções do trato urinário inferior, porém quanto se associam população continua pouco esclarecido. Assim, pesquisou-se a de sintomas inferior (STUI) em homens 60 anos ou mais. Realizou-se um estudo caso-controle, abordando (casos) sem (controles)...
In this work, the double cantilever beam (DCB) test is analysed in order to evaluate combined effect of temperature and moisture on mode I fracture toughness adhesives used automotive industry. Very few studies focus mechanical behaviour adhesive joints. To authors' knowledge, simultaneous these conditions joints has never been determined. Specimens using two different for industry were subjected ageing environments (immersion distilled water under 75% relative humidity). Once they fully...
The presented work focuses on the effects of water degradation long-term behaviour adhesive joints. objective this study is to measure evolution various mechanical properties such as tensile stress and fracture toughness a function humidity for two distinct adhesives, using bulk double cantilever beam specimens in unaged aged conditions order understand influence properties. A mathematical equation that allows prediction each property proposed validated, which takes into account parameters...
Cohesive zone elements used in finite element analysis are a reliable way to design and predict the behaviour of joint. The characterisation traction separation law these models is done using tensile fracture tests, parameters such laws depend on humidity temperature. Water diffusion tests therefore necessary, which dependent specimen geometry, meaning bigger takes longer fully saturate. To solve this problem increase efficiency ageing process, smaller bulk double cantilever beam (DCB)...
Structural adhesives are increasingly being used in the aerospace and automotive industries. They allow for light weight vehicles, fuel savings reduced emissions. However, environmental degradation of adhesive joints is a major setback its wide implementation. Moisture includes plasticization, attacking interface, swelling consequent creation residual stresses. This may lead to reversible irreversible damage. In this work double cantilever beam (DCB) specimens using two different industry...
The present work focuses on the effects of water degradation fatigue behaviour adhesive joints bonded with aluminium adherends. objective this study is to measure influence that humidity has crack growth velocity two distinct adhesives characterized using Paris Law, double cantilever beam (DCB) specimens in unaged and various aged conditions loaded mode I order understand content Law constants. It was found slope curve not heavily changed presence water, but a shift curves does occur,...