A5040249002- Composite Structure Analysis and Optimization
- Aeroelasticity and Vibration Control
- Structural Analysis and Optimization
- Topology Optimization in Engineering
- Acoustic Wave Phenomena Research
- Structural Health Monitoring Techniques
- Numerical methods in engineering
- Structural Load-Bearing Analysis
- Structural Analysis of Composite Materials
- Vibration and Dynamic Analysis
- Mechanical Engineering and Vibrations Research
- Cellular and Composite Structures
- Mechanical Behavior of Composites
- Transportation Safety and Impact Analysis
- Geotechnical Engineering and Underground Structures
- Fluid Dynamics Simulations and Interactions
- Dynamics and Control of Mechanical Systems
- Material Properties and Applications
- Probabilistic and Robust Engineering Design
- Natural Fiber Reinforced Composites
- Education Pedagogy and Practices
- Civil and Geotechnical Engineering Research
- Fatigue and fracture mechanics
- Dielectric materials and actuators
- Advanced Optimization Algorithms Research
University of Lisbon
2015-2024
Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
1996-2024
Instituto Politécnico de Lisboa
2012-2023
Instituto Superior Técnico
2013-2023
Polytechnic Institute of Bragança
2000-2010
Institute of Solid Mechanics
2008
Additive Manufacturing (AM) is a manufacturing process through which 3D component produced by consecutively adding material. One of the most promising AM processes SLM. In SLM laser completely melts metallic powder particles together forming component. known for its freedom constraints allowing complex geometries and high material efficiency. Topology Optimisation (TO) an optimisation type that calculates optimal distribution given problem. The combination with TO being developed to create...
This work focuses on the layerwise finite element modelling and active aeroelastic flutter control of smart variable stiffness laminated composite panels with surface bonded piezoelectric layers/patches under supersonic airflow. The proposed aero-electro-elastic models make use First- Third-order Shear Deformation Theories, along a linear through-thickness distribution electric potential, whereas effect airflow is described by First-order Piston Theory. Numerical applications simply...
In this article, we present a new finite element model for the analyzis of active sandwich laminated plates with viscoelastic core and anisotropic face layers, as well piezoelectric sensor actuator layers. The is formulated using mixed layerwise approach, by considering higher order shear deformation theory to represent displacement field first-order adjacent layers exterior Control laws are implemented validated reference solutions from literature, benchmark application proposed.
In this article various sinusoidal shear deformation theories are used for the buckling analysis of functionally graded sandwich plates. The may account through-the-thickness deformations and/or zig-zag effect. governing equations and boundary conditions derived using Principle Virtual Work under a generalization Carrera’s Unified Formulation further interpolated by collocation with radial basis functions. A numerical investigation has been conducted on plates skins. influence thickness...
In this paper, we conduct a brief revision of the state-of-the-art on vegetable fibre-reinforced composite applications in automotive industry. We then present some results for dynamic characterisation an auto part made jute fibres and equivalent one traditional glass fibres, where increase damping is most evident. An inverse method based free vibration response plate specimens also applied to estimate damped material parameters composites. The obtained are compared with ones fibre future...
In this work, user-elements (UEL) in Abaqus are taken a step forward into the high-order layerwise modelling of variable stiffness composite laminates with curvilinear fibre paths, extending limited number available literature on refined multilayered UEL models. Two models three discrete layers here proposed, assigning to each layer displacements first- and third-order shear deformation theories, thus named UEL1 UEL3, respectively. A complete assessment predictive capabilities is carried out...
This paper presents for the first time an approach to problem of electromechanical fracture and crack propagation in piezoelectric solids with peridynamics. Fracture ceramics is important engineering due its complexity. The majority computational models available on literature rely sharp representations, which have difficulties dealing complex patterns, or diffusive models, such as phase-field model, that can predict patterns but does not represent cracks a discrete way. On other hand,...
In this work a simple and efficient finite element model is developed for vibration analysis of active-passive damped multilayer sandwich plates, with viscoelastic core sandwiched between elastic layers, including piezoelectric layers. The layers are modeled using the classical plate theory Reddy's third-order shear deformation theory. obtained by assembly N "elements" through thickness, specific assumptions on displacement continuity at interfaces To achieve mechanism active control...