- Mechanical Behavior of Composites
- Fiber-reinforced polymer composites
- Fatigue and fracture mechanics
- Natural Fiber Reinforced Composites
- Mechanical stress and fatigue analysis
- Numerical methods in engineering
- Ultrasonics and Acoustic Wave Propagation
- Additive Manufacturing and 3D Printing Technologies
- Structural Analysis of Composite Materials
- Advanced Cellulose Research Studies
- Surface Modification and Superhydrophobicity
- Structural Response to Dynamic Loads
- Diamond and Carbon-based Materials Research
- Innovative concrete reinforcement materials
- biodegradable polymer synthesis and properties
- Metal Forming Simulation Techniques
- Metal and Thin Film Mechanics
- High-Velocity Impact and Material Behavior
- Advanced Fiber Optic Sensors
- Structural Analysis and Optimization
- Advanced machining processes and optimization
- Advanced Sensor and Energy Harvesting Materials
- Material Properties and Processing
- Rock Mechanics and Modeling
- Carbon Nanotubes in Composites
Norwegian University of Science and Technology
2020-2024
Technical University of Denmark
2011-2021
Danish Energy Association
2020
Frederiksberg Hospital
2020
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux
2006-2012
Nordic Laboratory for Luminescence Dating
2005-2007
Queen Mary University of London
2001-2006
Centre for Sustainable Energy
2005-2006
Foundation for Research and Technology Hellas
2001-2003
The influence of the hardness martensite and ferrite phases in dual phase steel on void formation has been investigated by situ tensile loading a scanning electron microscope. Microstructural observations have shown that most voids form evolving four steps: plastic deformation martensite, crack initiation at martensite/ferrite interface, propagation leading to fracture particles separation particle fragments. It identified effect is associated with following aspects: strain partitioning...
This work investigated the long-term performance of unidirectional (UD) flax fibre reinforced recyclable polymer composites (FFRPs), after accelerated weathering for a total 56 days, in laboratory environment. The employed matrices were bio-based epoxy and liquid thermoplastic acrylic resin. developed composites, compared with traditional UD glass (GFRPs), employing standard petro-based resin, terms flexural viscoelastic properties, while visual inspection Scanning Electron Microscopy (SEM)...
The narrow process temperature window available to consolidate self-reinforced PLA composites is one of the challenges for application this type composites. In present work, effect consolidation on polymer crystallinity and mechanical performance studied characterized. On filament level, results show that Young's modulus reinforcement filaments increases with exposure (12%) strength at break decreases (30%). With an additional annealing process, a semi-crystalline matrix may increase, while...
A novel one-step Roll & Press process for fabricating capacitors with embedded electrodes and highly reversible polar nanostructures superior energy storage performance (energy density: 50 J cm −1 ; efficiency: 80%).
The synthesis of zinc oxide (ZnO), with the support silver (Ag) and Graphene Oxide (GO), was carried out in several stages as a potential photocatalytic material. First, GO synthesized from commercial graphite using Hummers' method, ZnO Ag precursors were prepared. second stage electrospinning process, followed by calcination. solution to produce nanofibers, mixture polymer (polyvinyl alcohol), acetate, AgNO3, GO. fibres produced thermally treated at 500 C for 2 h. XRD FTIR analyses...
Graphene-based materials (GMs) have significant potential for enhancing the thermal conductivity of cementitious composites. This study uses both machine learning (ML) and computational micromechanics models (CMMs) through a hybrid modelling approach to investigate GM-reinforced composites (GRCCs). Accordingly, validated CMMs were used train ML models, which then employed predict GRCCs. The results show that, among parameters investigated, volume fraction GMs is most influential factor in...
The present work studies the response to hygrothermal ageing of natural fibre composites (NFCs) against synthetic when using three different types polymers as matrices. For ageing, coupons were fully immersed in distilled water at 23, 40, and 60 °C for a total period 56 days. Flax fibre-reinforced composites, two recyclable polymer systems: (i) bio-based epoxy (ii) an acrylic-based liquid thermoplastic resin, tested conventional glass employing (petroleum-based) epoxy. Different...
Currently most developments in the area of natural fibre reinforced composites have focused on random discontinuous composite systems. The development continuous is, however, essential for manufacturing materials, which can be used load-bearing/structural applications. main problem this case is optimisation yarn to manufacture textile reinforcement. Low twisted yarns display a very low strength when tested dry air and therefore they not processes such as pultrusion or routes. On other hand,...
Natural fibre composites (NFCs) are not durable in the long run because of susceptibility natural fibres to environmental conditions and specifically moisture. Hybridizing NFC laminates externally, with synthetic reinforcements, may improve durability, due their inherent resistance. This work aims investigate effects glass hybridization, on flax composites, studied via accelerated ageing. In specific, durability hybrid flax/glass reinforced polymer two recyclable matrices was investigated....