A5005574376- Mechanical Behavior of Composites
- Epoxy Resin Curing Processes
- Fiber-reinforced polymer composites
- Composite Material Mechanics
- Injection Molding Process and Properties
- Synthesis and properties of polymers
- Natural Fiber Reinforced Composites
- Material Properties and Applications
- Electronic Packaging and Soldering Technologies
- Additive Manufacturing and 3D Printing Technologies
- Textile materials and evaluations
- Advanced Cellulose Research Studies
- Photopolymerization techniques and applications
- Polymer crystallization and properties
- Structural Analysis and Optimization
- Structural Analysis of Composite Materials
- 3D IC and TSV technologies
- Composite Structure Analysis and Optimization
- Advanced Aircraft Design and Technologies
- Smart Materials for Construction
- Structural Behavior of Reinforced Concrete
- Manufacturing Process and Optimization
- Mechanical stress and fatigue analysis
- Polymer composites and self-healing
- Engineering Technology and Methodologies
Delft University of Technology
2019-2024
FHNW University of Applied Sciences and Arts
2013-2021
Abstract Reinforced polymer‐based composites are attractive lightweight materials for aircrafts, automobiles, and turbine blades, but still show strength fracture toughness lower than traditional metals. An interesting approach to address this issue is fabricate with structural features that absorb part of the elastic energy stored in material during through extrinsic intrinsic toughening mechanisms behind ahead crack tip, respectively. Inspired by nacreous layer mollusk shells, behavior...
As the aviation industry strives to minimize its environmental footprint, understanding full life cycle impacts, including maintenance, becomes essential for sustainable development. This paper addresses critical research gap in assessment of aircraft maintenance by conducting a comprehensive based on an Airbus A320 aircraft. By combining top-down check-level analysis and detailed examination manufacturer's planning document, this study provides significant insights into implications...
The end of life carbon fibre-reinforced polymer (CFRP) structures represents a major challenge to the aerospace industry, as new European regulations are demanding recycling solutions that can be complicated and expensive apply. This study aims address practical ways recycle CFRP materials. materials with polyether ether ketone (PEEK) matrix were fragmented via electrodynamical fragmentation, which exhibits several benefits compared mechanical shredding processes, especially for composites...
Intimate contact development under LAFP-specific thermal and mechanical boundary conditions/interactions the effect of process parameters are investigated. One-layer, unidirectional strips CF/PEKK material were placed with different on a flat tool surface to create intimate conditions. The concept effective contact, which is based resin content at surface, introduced methodology measure it from micrographs provided. Degree measured samples was compared existing models. temperature history in...
Exploring routes for the effective use of recycled carbon fibres (rCFs) is critical to close loop in life cycle fibres. This work demonstrated a potential using rCFs interlayer toughening fibre/epoxy composites. Nonwoven mats based on and commingled rCFs/Polyphenylene-sulfid (PPS) were used interlay laminate, aiming improve mode-I mode-II fracture toughness. The experimental results proved significant enhancements interlaminar properties upon interleaving, with rCF/PPS exhibiting more...
Ultrasonic welding is a promising joining technique for thermoplastic composite parts. On the way towards upscaling and industrialisation of this technology, it crucial to understanding how affected by manufacturing tolerances. The objective research presented in paper was investigate influence that misaligned adherends have on static ultrasonic composites. Different angles were created changing clamping configuration. results showed increasing angle between decreases power consumed...
Interlaying thermoplastic veils into carbon fibre/epoxy composites has proved to significantly increase the interlaminar fracture toughness. The main toughening mechanism is fibre bridging for non-meltable and matrix meltable veils. Herein, take advantage of different mechanisms, hybrid meltable/non-meltable were used interlay two types aerospace-grade produced from unidirectional (UD) prepregs resin transfer moulding non-crimp fabrics (NCF). mode-I mode-II behaviour interleaved laminates...
The compatibility between the majority of thermoplastic veils (TPVs) and epoxies is typically poor, owing to inherently low surface energies thermoplastics. This tends largely affect toughening performance TPVs as interlayer materials carbon fibre/epoxy composites. traditional methods for activation thermoplastics, such corona discharge, plasma treatment acid etches, are not applicable they could cause significant damage fibres with nano-/micro-scale diameters. Herein, a UV-irradiation...
Fast-curing epoxy polymers allow thermoset parts to be manufactured in minutes, but the curing reaction is highly exothermic with heat flows up 20 times higher than conventional epoxies. The low thermal conductivity of polymer causes mechanical and kinetic properties vary through their thickness. In present work, silica nanoparticles were used reduce exotherm, hence improve consistency parts. measured as a function part was significantly reduced addition nanoparticles, which well dispersed...
Ultrasonic welding is a promising technology to join fibre-reinforced thermoplastic composites. While current studies are mostly limited fabric materials the applicability unidirectional materials, as found in aerospace structures, would offer opportunities for joining primary aircraft structures. However, due highly anisotropic flow of molten ply undesired squeeze phenomena can occur at edges weld overlap. This paper investigates how fibre orientation plies adjacent line influences process...
The production of advanced composites from recycled carbon fibres (rCFs) is critical for the sustainable development fibre industry. Herein, non-woven mats consisting commingled rCFs and Polyphenylene-sulfide (PPS) were compression moulded to manufacture rCF/PPS composites, with fibre/matrix adhesion being tailored by UV-irradiating mats. intralaminar interlaminar fracture resistance mechanical performance characterised. experimental results had demonstrated that improving PPS/rCF...
A brown algae-based renewable epoxy monomer can outperform bisphenol-A based resin and composite systems by means of thermomechanical properties.
Understanding the microstructural variability in unidirectional composite prepreg tapes is relevant to investigating mechanisms of tape microstructure formation, their impact on its processability and mechanical performance final part. It has been shown that three-dimensional at single-fibre level can be resolved by X-ray micro-computed tomography (XCT). However, define a representative fingerprint given tape, investigations required small voxel size lead limited volumes observation, which...