A5027560575- Epoxy Resin Curing Processes
- Mechanical Behavior of Composites
- Industrial Vision Systems and Defect Detection
- Injection Molding Process and Properties
- Fiber-reinforced polymer composites
- Advancements in Photolithography Techniques
- Composite Material Mechanics
- Manufacturing Process and Optimization
- Empathy and Medical Education
- Advanced X-ray and CT Imaging
- Non-Destructive Testing Techniques
- Material Properties and Applications
- Advanced Surface Polishing Techniques
- Medical Imaging Techniques and Applications
- Composite Structure Analysis and Optimization
- Simulation-Based Education in Healthcare
- Innovations in Medical Education
- Innovations in Concrete and Construction Materials
University of Bristol
2019-2025
Poltava State Medical University
2025
Deposition defects arising during automated fibre placement (AFP) reduces production rate and creates wastage from rejected parts. This issue can be alleviated by identifying reacting to those in real-time deposition. To demonstrate the concept, this study augmented an AFP process with profilometry sensors software control. Description of machine, its sensors, control system is provided. In experiment, representative bonding at tow level a typical layup were introduced. These picked up...
Manufacture-induced defects are a critical issue in composites applications that result high volumes of material waste and costly experimental trials to help mitigate this. Advances process modelling techniques have enabled the prediction defects. However, computational cost these tools limits their usefulness an industrial context as they often struggle with ever-increasing size structures, present significant challenges undertaking large optimisation problems. In this work, recently...
Thermoset composites need time to cure. In additive manufacturing contexts, this prevents achieving full laminate consolidation in a single step. This work investigates the behaviour of representative Out-Of-Autoclave (OOA) carbon fibre epoxy prepreg, which air channels were intentionally left facilitate evacuation during compression, explore new processing possibilities. Samples consolidated through Ply-By-Ply (PBP) compaction cycles under pressure 1 bar, at test temperatures ranging from...
To investigate and evaluate the effect of void features on mechanical performance composite materials, it is important to be able manufacture samples with a range controlled content. A criterion less than 2% porosity typically acceptable for industry. However, content above below this range, as voids are unevenly distributed in parts, so there likely local concentrations higher some sections structures. In paper, novel manufacturing process that allows panels contents manufactured manner...
The presence of voids in composite materials reduces the material's strength, particularly matrix-dominated properties such as short beam shear (SBS) strength. Until now there has been no satisfactory way to reliably predict effect on SBS Instead, a reliance using average void content combined with extensive testing assess linear reduction strength increasing determine 'knock-down' factor. Here, reduced cross-sectional area is used laminates containing voids. A detailed characterisation...
Micro-defects in composites, such as porosity, detrimentally affect matrix-dominated mechanical properties. Consequently, it is crucial to understand how variations void morphology, size, shape and distribution, the performance of composite structures. In this work, carbon/epoxy composites with deliberately introduced voids were investigated experimentally using micro–X-ray Computed Tomography (CT) short-beam shear testing. The location shape, three dimensions, was used develop a methodology...
Automated Fibre Placement (AFP) is widely recognised as one of the most advanced processes for manufacturing structural composite components. Understanding process remains at forefront academic/industrial investigation due to myriad parameters that affect quality deposited tape. A novel AFP testbench, which included a heated glass tool, was developed aid in material behaviour underneath roller during compaction. The captured by using camera directed compaction region, where data subsequently...