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A correlation between surface and flexural behavior of atmospheric Helium plasma modified jute/polyester bio-composites - A. A. Kafi Error: File does not exist /var/www/html//ifm/docs/jute-polyester-bio-composites.pdf
Poor fiber-matrix adhesion of bio-fiber based green composite has been considered as the major drawback for use in industry. Using atmospheric plasma on the fiber surface prior to Quickstep™ processing is a potential way to overcome the present obstacle. The fundamental area of this study is to understand the correlation between surface properties and fracture mechanical behavior of green composites.
Analysis of Robustness and Variation in Sheet Metal Forming - T. de Souza (442 KB)
The sheet metal forming industry is subject to many inconsistencies, including variation in the incoming sheet material and scatter in the processing conditions. Having a well performing, robust stamping process is crucial to ensure quality output is achieved. This work investigates the effects of material and process variation on the geometric stability of various stamping processes, analysing the influence of typical input variation parameters on springback and methods in which we can control the variation, increasing process robustness. Probabilistic FEM simulations are performed to allow an accurate and precise method of capturing the output response and also provide a time and cost effective method of assessing the performance of the stamping process.
A new cheap technology for magnesium metal foam production - M. Barnett and C. Wen (55 KB)
Magnesium metal foams combine ultralight structural properties with high energy absorption. These properties make magnesium foams of considerable interest in energy absorbing and biomedical applications. The present work aims to develop a low cost manufacturing technique of magnesium foam.
CAE Crash Analysis and Development of Automotive Lightweight Structures - P. Collins (31 KB)
Deformation behaviour of ultrafine grained materials (UFG) materials - S. Malekjani (55 KB)
By development of new processing routes to refine grain size at the ultrafine and nanocrystalline level a growing trend for study of new material mechanical properties has been reached. The aim of this work is to investigate the deformation behaviour of these new materials under monotonic and cyclic loading condition.s
FEM Analysis of Contact Pressure & Wear in Sheet Metal Forming - M. Pereira (35 KB)
The initial part of this research utilises finite element analysis to study the contact pressure distribution over the die radius, and its evolution throughout the entire stroke of the punch, for a particular sheet metal stamping process. Subsequent work will examine the relationship between the predicted contact pressure distributions and the actual wear observed over the die radii, based on semi-industrial and laboratory wear experiments.
Material Characterization for Crash Simulations - J. Mullins (151 KB)
Metallic Biomaterials - J. Lin, Y. Li and C. Wen (37 KB)
This project is aimed at the development of biocompatible and bioactive porous metals, i.e. Ti and Ti alloys with the closest structure and biomechanical properties of natural bone, and without the risk of rejection reaction. On the surface of our porous titanium biomaterial there is a layer of inorganic biomaterial having the same composition with natural bone as calcium phosphate, which is biocompatible, osteoconductive, and non-toxic. This layer of hydroxyapatite can be achieved through surface modification.
Modeling of tool wear in Trim Dies for AHSS - R. Rafiee (15 KB)
Car body manufacturer demands for reducing weight and improving crashworthiness results for increasing the number of car body stamping parts which must be manufactured by advanced high strength steels (AHSS).Using AHSS in cutting die operations such as blanking, trimming and piercing needs larger press forces which cause greater loads acting on the tools. Therefore, tool wear has been emerged as a critical problem resulting to increase die maintenance and undesirable press line stoppages in stamping process which are very costly for industry. On the other hand, steel inserts which are applied in trim and blanking dies are very expensive itself. Finite element modelling is a powerful tool for simulating the cutting process in order to predicting effective forces acting on the tools.
Multiscale Modelling by PIC - A. Asgari (17 KB)
In modelling multiphase materials, such as Advanced High Strength Steels, alternative methods could give significant advantage compared with the conventional FEM. Therefore, in this project the particle-in-cell (PIC) method is evaluated for modelling AHSS in the micro and macro scales. The multiscale models are built with direct representation of the microstructure (either simplified, or an actual microstructure drawn from metallography) using the computational homogenisation techniques.
Multi-scale Problems in Microstructures of Metals - C. Yang (144 KB)
Photochromic Wool Fabrics from Nano-Porous Silica Coating - T. Cheng (27 KB)
Simulation of Recrystallization through Cellular Automata - N. Yazdipour and P. Hodgson (289 KB)
Cellular Automaton (CA) is a technique that is being applied to study microstructure evolution in metals and other materials. This research is applying the CA technique to one of the outstanding issues in hot working of metals: dynamic recrystallisation (DRX) and the post-dynamic microstructural changes.
Surface analysis of painted carbon fibre composites for automotive body panels - M. Herring (52 KB)
This project investigates the surface finish of unpainted, painted and aged carbon fibre composites for automotive applications. The research also compares the surface finish of autoclave and Quickstep manufactured panels, twill and unidirectional carbon fibre orientations, and the use of surfacing films.
Performance behaviour of AHSS - C. Nikhare (28 KB)