A5078513761- Topology Optimization in Engineering
- Composite Structure Analysis and Optimization
- Additive Manufacturing and 3D Printing Technologies
- 3D Printing in Biomedical Research
- Cellular and Composite Structures
- Advanced Multi-Objective Optimization Algorithms
- Cell Image Analysis Techniques
- Manufacturing Process and Optimization
- Innovations in Concrete and Construction Materials
- Fluid Dynamics and Vibration Analysis
- Structural Engineering and Vibration Analysis
- Drug Solubulity and Delivery Systems
- Fluid Dynamics and Turbulent Flows
- Advanced Materials and Mechanics
- Composite Material Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Oil and Gas Production Techniques
- Metamaterials and Metasurfaces Applications
- Drilling and Well Engineering
- Vibration and Dynamic Analysis
- Heat and Mass Transfer in Porous Media
- Modular Robots and Swarm Intelligence
- Structural Analysis and Optimization
- Lattice Boltzmann Simulation Studies
- Additive Manufacturing Materials and Processes
De Montfort University
2017-2025
University of Nottingham
2013-2018
A number of strategies that enable lattice structures to be derived from Topology Optimisation (TO) results suitable for Additive Manufacturing (AM) are presented. The proposed evaluated mechanical performance and assessed AM specific design related manufacturing considerations. From a stand-point, support structure requirement decreases with increased extent latticing, whereas the design-to-manufacture discrepancies processing efforts, both in terms memory requirements time, increase....
Additive manufacturing (AM) processes, such as fused deposition modelling (FDM), have emerged transformative technologies in pharmaceutical manufacturing, enabling the production of drug delivery systems with complex and customised geometries. These advancements provide precise control over release profiles facilitate development patient-specific medicines. This study investigates dissolution behaviour AM-fabricated tablets made from polyvinyl alcohol (PVA), a hydrophilic biocompatible...
The topology optimization using isolines/isosurfaces and extended finite element method (Iso-XFEM) is an evolutionary developed in previous studies to enable the generation of high-resolution optimized designs suitable for additive manufacture. Conventional approaches require additional post-processing after generate a manufacturable with clearly defined smooth boundaries. Iso-XFEM aims eliminate this time-consuming stage by defining boundaries isovalues structural performance criterion...
This study presents a new algorithm for structural topological optimization of two-dimensional continuum structures by combining the extended finite element method (X-FEM) with an evolutionary algorithm. Taking advantage isoline design approach boundary representation in fixed grid domain, X-FEM can be implemented to improve accuracy solutions on during process. Although this does not use any remeshing or moving mesh algorithms, final topologies have smooth and clearly defined boundaries...
The aim of this paper is to investigate the design optimisation and additive manufacture automotive components. A titanium brake pedal processed through selective laser melting (SLM) considered as a test case. Different techniques have been employed including topology lattice structure design. Rather than using conventional method, recently developed method called Iso-XFEM used in work. This capable generating high resolution optimised solutions isolines/isosurfaces structural performance...
This study investigates the fluid forces acting on a circular cylinder in laminar flow regime while using passive control strategy. Three cases including with one, two or three rigid splitter plates attached at its rear surface were considered and location of horizontal (attachment angle) was varied between 0° 90°. A comprehensive parametric performed to identify optimum arrangement commercial finite element software, Comsol Multiphysics. The results show that number have crucial effects...
Abstract This study presents the design and development of a 2D auxetic filtering medium with programmable geometric features specifically designed to vary under in-plane tensile strain. feature empowers control particles separation. A novel optimisation algorithm developed in Matlab ® determines final optimized geometry based on desired particle size input. Upon thorough numerical investigation, an empirical relationship between linear elastic strain aperture proposed metamaterial is...
Abstract Due to the complexity of bone structures, influenced by factors such as injuries, defects, age, and health conditions, creating accurate 3D personalized scaffolds is challenging requires extensive trial‐and‐error. To ensure high‐quality bespoke scaffolds, three key mechanical parameters—volume fraction, Poisson's ratio, elastic modulus—must be accurately calculated during surgery. This research proposed idea applying convolutional neural networks (CNNs) Transfer Learning (TL)...
As the understanding of disease grows, so does opportunity for personalization therapies targeted to needs individual. To bring about a step change in medical devices it is shown that multi-material inkjet-based 3D printing can meet this demand by combining functional materials, voxelated manufacturing, and algorithmic design. In paper composite structures designed with both controlled deformation reduced biofilm formation are manufactured using two formulations deposited selectively...
There has been significant interest in additively manufactured lattice structures recent years due to their enhanced mechanical and multi-physics properties, making them suitable candidates for various applications. This study presents a multi-parameter implicit equation model designing body-centred cubic (BCC) structures. The is used conjunction with multi-objective genetic algorithm (MOGA) approach maximise the stiffness of BCC structure while minimising von-Mises stress within under...
This research addresses the flow characteristics within a porous medium composed of monolayer closely packed spheres, spanning from viscous-dominated to turbulent regimes. In first part this paper, at 30 MPa pressure drop domain are presented. The results averaged across different cross sections between inlet and outlet. second study, simulations conducted with drops, ranging nearly 0 100 MPa. analysis finds distinct patterns provides estimations for permeability inertial term coefficient....
The aim of this paper is to investigate the design optimisation and additive manufacture automotive components.A titanium brake pedal processed through selective laser melting (SLM) considered as a test case.Different techniques have been employed including topology lattice structure design.Rather than using conventional method, recently developed method called Iso-XFEM used in work.This capable generating high resolution optimised solutions isolines/isosurfaces structural performance...
Abstract This paper presents a numerical model to study fracture propagation during water-based hydraulic fracturing. To address the computational challenges associated with model, proposed approach employs set of overlapping spheres arranged in monolayer construct porous specimen containing pre-existing cracks. The fluid-filled cracks represent various stages initiation and fluid-driven fracture. high-pressure fluid flow within fractures is considered under isothermal conditions. Unlike...
Bacterial Biofilm Resistant Composite Devices Medical implants would benefit from bespoke 3D printing, however microbial infection remains a challenge. By combining functional materials, voxelated manufacturing and algorithmic design, Morgan R. Alexander, Ricky D. Wildman, co-workers demonstrate in article number 2100249 multi-material inkjet printed device that inhibits the development of bacterial biofilm, while achieving highly customizable geometry local stiffness, opening further...
Iso-XFEM is an evolutionary-based topology optimization method which couples the extended finite element (X-FEM) with isoline/isosurface approach, enabling a smooth and accurate representation of design boundary in fixed-grid mesh. This paper investigates application to structures experience large deformation. The total Lagrangian formulation employed model geometrically non-linear behaviour equilibrium found by implementing Newton-Raphson each evolution. A cantilever beam considered as test...
Iso-XFEM is an evolutionary based topology optimization method for generating high resolution optimised solutions using isolines/isosurfaces of a structural performance criterion and eXtended Finite Element Method (XFEM).The conventional approach design structures includes the use density method, such as SIMP, to find optimal distribution within domain, thresholding densities at arbitrary value obtain boundary.This will then require additional post-processing, smoothing shape optimization,...
As our understanding of disease grows, it is becoming established that treatment needs to be personalized and targeted the individual. In this paper we show multi-material inkjet-based 3D printing, when backed with generative design algorithms, can bring a step change in personalization medical devices. We take cell-instructive materials known for their resistance bacterial biofilm formation reformulate printing. Specimens customizable mechanical moduli are obtained without loss properties....