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
Life Extension of Equipment Suffering Environmentally-Assisted Cracking: An Innovative Approach to Mitigation by Engineering of Materials in Service. Environmentally-assisted cracking (EAC) represents a serious threat to infrastructure exposed to caustic and chloride environments in process, marine, energy and chemical industries in Australia. Despite extensive research, there is no consensus mechanism for EAC. This project will investigate a fresh approach to life extension of in-service equipm ....Life Extension of Equipment Suffering Environmentally-Assisted Cracking: An Innovative Approach to Mitigation by Engineering of Materials in Service. Environmentally-assisted cracking (EAC) represents a serious threat to infrastructure exposed to caustic and chloride environments in process, marine, energy and chemical industries in Australia. Despite extensive research, there is no consensus mechanism for EAC. This project will investigate a fresh approach to life extension of in-service equipment suffering EAC, by developing and testing a mitigation measure reasonably independent of the EAC mechanisms. The task includes development of a consolidated strategy based on: accurate determination of the fundamental parameters for crack propagation, and in-situ thermomechnical treatment for local manipulation of material at and ahead of crack-tip, in order to retard/stop crack propagation.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100036
Funder
Australian Research Council
Funding Amount
$310,000.00
Summary
Super high speed grinding facility for difficult-to-machine materials and structures. This unique system will enable the manufacture of difficult-to-machine materials and structures with high quality and high productivity. It will support ground-breaking research activities across the country and help promote the strategic collaborations within Australian manufacturing society.
High Performance Twist Drill Design and Drilling Operations for Machining Mould Steel. In this project a high performance drill point design, based on low drilling forces and high drill-life criteria when machining mould steel will be developed together with a computer application software for drilling force predictions, based on the ¡®unified-generalised mechanics of cutting approach¡¯, and optimal drilling feed and speed selection for minimum cost and time per hole, based on a multi-constraint ....High Performance Twist Drill Design and Drilling Operations for Machining Mould Steel. In this project a high performance drill point design, based on low drilling forces and high drill-life criteria when machining mould steel will be developed together with a computer application software for drilling force predictions, based on the ¡®unified-generalised mechanics of cutting approach¡¯, and optimal drilling feed and speed selection for minimum cost and time per hole, based on a multi-constraint drilling optimization analysis. Particular attention will be given to the manufacture of the drill point geometry. It is anticipated that the application software will enable the drill design, manufacture, performance and drilling conditions to be integrated.Read moreRead less
Predictive Mechanics of Cutting Models for Forces and Torque in Machine Tapping Operations with Straight and Helical Flute Taps. This project is aimed at developing a fundamental understanding of the cutting process as well as mechanics of cutting mathematical models and software for reliable predictions of all the force components, torque and power in machine tapping of both wrought and sintered metallic materials with straight and helical fluted taps. This investigation will provide useful fun ....Predictive Mechanics of Cutting Models for Forces and Torque in Machine Tapping Operations with Straight and Helical Flute Taps. This project is aimed at developing a fundamental understanding of the cutting process as well as mechanics of cutting mathematical models and software for reliable predictions of all the force components, torque and power in machine tapping of both wrought and sintered metallic materials with straight and helical fluted taps. This investigation will provide useful fundamental and practical information and data on the tapping operations, renowned as 'some of the most neglected operations in machining research' and as 'bottleneck operations in practice'. This project heads towards satisfying the internationally recognised pressing need for quantitatively reliable machining performance data and equations.Read moreRead less
Microplastics in Landfills and Surrounding Environments. This project aims to build a risk-based framework for managing micro- and nano-plastic particles in landfills and surrounding environments. It expects to develop a new experimentally validated theory of micro/nano-plastic transport in soils, focussing on lining systems used in landfills worldwide to protect aquifers from contamination. The project will use state-of-the-art experimental, theoretical and computational approaches to generate ....Microplastics in Landfills and Surrounding Environments. This project aims to build a risk-based framework for managing micro- and nano-plastic particles in landfills and surrounding environments. It expects to develop a new experimentally validated theory of micro/nano-plastic transport in soils, focussing on lining systems used in landfills worldwide to protect aquifers from contamination. The project will use state-of-the-art experimental, theoretical and computational approaches to generate new knowledge on micro/nano-plastic fate in lining systems and their effects on the mobility of heavy metals and organic pollutants. This should provide significant benefits including safe plastic containment and groundwater protection from landfill waste, a major reservoir of plastic in the environment.Read moreRead less
Development of Topological Optimisation Techniques for the Conceptual Design of Multi-storey Buildings. The building design process often begins with a case based preliminary design which derives its main parameters and features from a number of existing buildings of similar dimensions and functionality. This project aims to develop a design tool which incorporates two topological optimisation techniques in the conceptual design of multi-storey buildings. This design tool will enable inefficient ....Development of Topological Optimisation Techniques for the Conceptual Design of Multi-storey Buildings. The building design process often begins with a case based preliminary design which derives its main parameters and features from a number of existing buildings of similar dimensions and functionality. This project aims to develop a design tool which incorporates two topological optimisation techniques in the conceptual design of multi-storey buildings. This design tool will enable inefficient materials to be automatically removed from the design, thus producing a structurally efficient building system. At the same time, the new topologies generated by these optimisation techniques can be used by the designer to create innovative forms and layouts for the building.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100016
Funder
Australian Research Council
Funding Amount
$490,000.00
Summary
Multi-scale fabrication facility for complex three-dimensional surface generation from nano to macro dimensions. This facility will support advances in the manufacturing of free-form surfaces with submicron features. Its unique characteristics, such as the universal profiling ability and nanometre accuracy across large dimensions, will enable many science and engineering innovations which are presently impossible to be realised in Australia.
Discovery Early Career Researcher Award - Grant ID: DE140100747
Funder
Australian Research Council
Funding Amount
$333,157.00
Summary
Reliability assessment of concrete-filled steel tubular frames designed by advanced analysis. Concrete-filled steel tubular structures have been increasingly used in high-rise buildings, bridges and other infrastructure due to their enhanced properties such as high strength, high ductility and large energy absorption capability. This project will evaluate the system reliability of concrete-filled steel tubular frames designed by advanced analysis. The influences of inherent uncertainties in load ....Reliability assessment of concrete-filled steel tubular frames designed by advanced analysis. Concrete-filled steel tubular structures have been increasingly used in high-rise buildings, bridges and other infrastructure due to their enhanced properties such as high strength, high ductility and large energy absorption capability. This project will evaluate the system reliability of concrete-filled steel tubular frames designed by advanced analysis. The influences of inherent uncertainties in loads, strength capacities, material properties and geometric properties on the system reliability of such frames will be studied. The outcomes of this project will be used to develop reliability-based provisions to achieve a target reliability range in the design of concrete-filled steel tubular structures.Read moreRead less
An Integrated Systems Analysis: Fire Growth and Severity in Enclosures. An integrated systems risk-based model for fire safety has been developed and has been internationally acclaimed. A new fire severity submodel urgently needs to be developed before ramifications of the World Trade Centre catastrophe impact on fire safety regulations. Current submodels seriously misrepresent the real fires. They were developed from 1970's experiments on 2-3 metre cube-like enclosures and predict that fires ....An Integrated Systems Analysis: Fire Growth and Severity in Enclosures. An integrated systems risk-based model for fire safety has been developed and has been internationally acclaimed. A new fire severity submodel urgently needs to be developed before ramifications of the World Trade Centre catastrophe impact on fire safety regulations. Current submodels seriously misrepresent the real fires. They were developed from 1970's experiments on 2-3 metre cube-like enclosures and predict that fires engulf enclosures. Recent preliminary experiments have revealed that real fires burn locally at windows and only appear to be all engulfing. The research will lead international collaboration involving extensive experiments and some modelling to be completed in twelve months.Read moreRead less