Computerised diffraction tomography for structural health monitoring. Structural health monitoring (SHM) offers the prospect of a quantum gain in performance and efficiency for the design and structural integrity management of high-value assets (e.g. aircraft). The aims of this project are to develop and validate efficient computational tools for:
(i) Characterising the scattering of the Lamb waves by defects or boundaries, and
(ii) Implementing robust and versatile approaches to tomographic i ....Computerised diffraction tomography for structural health monitoring. Structural health monitoring (SHM) offers the prospect of a quantum gain in performance and efficiency for the design and structural integrity management of high-value assets (e.g. aircraft). The aims of this project are to develop and validate efficient computational tools for:
(i) Characterising the scattering of the Lamb waves by defects or boundaries, and
(ii) Implementing robust and versatile approaches to tomographic imaging of laminar defects or damage from experimental/synthetic scattered field data.
This project will result in the development of a validated and versatile SHM system for quantifying damage that is analogous to computerised tomography in medical imaging.Read moreRead less
Active vibration control of a fluid loaded cylinder using inertial and reactive actuators. The active control technology outlined in this proposal presents a practical solution for low frequency noise problems associated with a submarine. The successful outcomes will be directly applicable to the Collins Class submarine, and thereby will greatly benefit Australia's naval defence industry. The active control transducer technology developed in this project will be patented, and has the potential t ....Active vibration control of a fluid loaded cylinder using inertial and reactive actuators. The active control technology outlined in this proposal presents a practical solution for low frequency noise problems associated with a submarine. The successful outcomes will be directly applicable to the Collins Class submarine, and thereby will greatly benefit Australia's naval defence industry. The active control transducer technology developed in this project will be patented, and has the potential to result in great commercial value for Australia. This project will contribute significantly to Australian research capacity in cutting-edge technologies in active vibration control. The collaboration between UNSW and the Maritime Platforms Division of DSTO will promote technology transfer and enhance Defence research expertise.Read moreRead less
Small Scale Turbulence. The thrust of the project is to gain a fundamental understanding of turbulence, which is the usual state of fluid motion. The focus will be principally on the smallest length scales of turbulence because of the potential that exists for developing a theoretical framework which can predict the behaviour of these scales accurately. Important insight will be gained into the manner in which temperature is mixed and convected by a turbulent flow.
In situ neutron diffraction mapping of tri-axial stress distributions in particulate systems. Compacting powders, which are critical in industries such as metal, advanced ceramic and pharmiceutical manufacturing, will be studied in real time using advanced neutron diffraction techniques. This will allow the three-dimensional mapping of stresses and strains within small volumes of the powder deep inside realistic compaction equipment.
Discovery Early Career Researcher Award - Grant ID: DE230101196
Funder
Australian Research Council
Funding Amount
$439,012.00
Summary
Data-Driven Design for 3D Printed Materials with Tailored Fracture Response. Fracture is the main source of material failure and may cause serious engineering disasters and even death. This project aims to develop a Data-Driven Design System that intelligently optimizes local materials and architectures for heterogeneous structures with desired fracture response, and enhancing their mechanical fracture properties including stiffness, strength, toughness, and failure displacement. It will open up ....Data-Driven Design for 3D Printed Materials with Tailored Fracture Response. Fracture is the main source of material failure and may cause serious engineering disasters and even death. This project aims to develop a Data-Driven Design System that intelligently optimizes local materials and architectures for heterogeneous structures with desired fracture response, and enhancing their mechanical fracture properties including stiffness, strength, toughness, and failure displacement. It will open up a new and promising research field in mechanics and data-driven science that deals with intractable inverse problems in broad engineering fields. Economic, high-performance, and customized 3D printed structural materials will be generated to benefit national corporations and enterprises and meet the high-end industry needs.Read moreRead less
Using 3D printing technology to develop architecturally-controlled synthetic bone substitutes. With the ageing population, there is increasing demand for synthetic materials that can regenerate bone. However, purely synthetic bone-substitute biomaterials cannot regenerate large bone defects in weight-bearing conditions due to their fragility. This project aims to develop a customisable, biodegradable, biocompatible and mechanically strong and tough scaffold that overcomes this long-standing prob ....Using 3D printing technology to develop architecturally-controlled synthetic bone substitutes. With the ageing population, there is increasing demand for synthetic materials that can regenerate bone. However, purely synthetic bone-substitute biomaterials cannot regenerate large bone defects in weight-bearing conditions due to their fragility. This project aims to develop a customisable, biodegradable, biocompatible and mechanically strong and tough scaffold that overcomes this long-standing problem. The project aims to achieve this by applying an innovative combination of cutting-edge 3D printing technology, advanced computational modelling and design techniques to produce a next-generation bioceramic scaffold with optimised architecture. This approach aims also to enable the possibility of producing custom-made implants for individual requirements.Read moreRead less
Novel quantitative sizing of inaccessible and hard-to-inspect defects to address the challenges posed by innovations in airframe design. Modern unitised aircraft structures cannot be reliably inspected using traditional techniques. This project will develop new techniques to quantify defects required for this innovation in aircraft component design. This research will improve the through-life support of future metallic and composite aircraft structures and improve air safety.
An experimental and theoretical programme of research to resolve major obstruction-to-flow problems in bins and stockpiles. Many of Australia's industries rely on the efficient storage and handling of bulk solids materials such as minerals, chemicals, food-stuffs, agricultural products and pharmeceuticals. Often the handling processes are inefficient to the extent of affecting the economics of the industry. Here we propose two projects addressing those inefficiences resulting from stable obstr ....An experimental and theoretical programme of research to resolve major obstruction-to-flow problems in bins and stockpiles. Many of Australia's industries rely on the efficient storage and handling of bulk solids materials such as minerals, chemicals, food-stuffs, agricultural products and pharmeceuticals. Often the handling processes are inefficient to the extent of affecting the economics of the industry. Here we propose two projects addressing those inefficiences resulting from stable obstructions, such as "rat-holes", and those experimental arising from the unusual flow characteristics of fine powders. The major objectives are to use experimental and advanced mathematical modelling techniques, to produce reliable design models which minimise the occurrence of stable obstructions and provide reliable methods for increasing fine powder flow rates.Read moreRead less
Mathematical modelling of two-phase industrial granular flows. In many industrial processes involving flowing granular materials, the effect of air pressure can be significant. Such examples include pneumatic conveying, lock hoppers and air-impact moulding. The effect of pressurised air on a granular material can either compact it, or can cause sudden large flows. To model such complex phenomena, the frictional effects between the air and the solid granules must be accurately incorporated into a ....Mathematical modelling of two-phase industrial granular flows. In many industrial processes involving flowing granular materials, the effect of air pressure can be significant. Such examples include pneumatic conveying, lock hoppers and air-impact moulding. The effect of pressurised air on a granular material can either compact it, or can cause sudden large flows. To model such complex phenomena, the frictional effects between the air and the solid granules must be accurately incorporated into a two-phase continuum mechanical model for granular materials. This proposal will develop advanced mathematical models and computational procedures to predict complex two-phase granular flows for industrial problems.Read moreRead less