Determination of the Properties of Hyper-Elastic Materials by Deep Indentation. We seek to develop the scientific basis for the interpretation of the results of "deep" indentation testing of non-linear elastic (hyper-elastic) materials. Simple tests (such as indentation) produce complex strain fields. Interpretation of the resulting data in terms of stiffness, for example, requires a complex model of the deformation process that can be utilised to link the observed behaviour to the basic prope ....Determination of the Properties of Hyper-Elastic Materials by Deep Indentation. We seek to develop the scientific basis for the interpretation of the results of "deep" indentation testing of non-linear elastic (hyper-elastic) materials. Simple tests (such as indentation) produce complex strain fields. Interpretation of the resulting data in terms of stiffness, for example, requires a complex model of the deformation process that can be utilised to link the observed behaviour to the basic properties of interest. This project is dedicated to an understanding of the complex deformation associated with large strain indentation of hyper-elastic materials and structures, development of finite element based models for this deformation and creation of techniques for interpretation of the results of such indentation tests.Read moreRead less
Testing, modelling and engineering applications of topologically interlocking structures. The CI and his international collaborator have recently proposed a new principle of design of materials and structures based on topological interlocking of constituent elements. Elements of simple shape, such as tetrahedra, are assembled in structures that keep their integrity without any binder or connectors. Unusual properties, such as high fracture toughness and damage tolerance were found. The project a ....Testing, modelling and engineering applications of topologically interlocking structures. The CI and his international collaborator have recently proposed a new principle of design of materials and structures based on topological interlocking of constituent elements. Elements of simple shape, such as tetrahedra, are assembled in structures that keep their integrity without any binder or connectors. Unusual properties, such as high fracture toughness and damage tolerance were found. The project aims at investigating the mechanical and acoustic properties of the newly discovered interlockable geometries (cubes, octahedra, dodecahedra and icosahedra) and identifying the areas of application. The project will promote the international leading role of the collaborating institutions in this novel field.Read moreRead less
A NEW CONCEPT IN DESIGN OF MATERIALS AND STRUCTURES BASED ON TOPOLOGICALLY INTERLOCKED ELEMENTS. The project aims to develop a new concept in materials design based on assemblies of interlocked elements. Interlocking is achieved topologically by special arrangements of blocks without connectors. Such assemblies can form structures possessing special mechanical properties and serve as load-bearing skeletons in composites with a binder phase providing desired functional properties. Various types o ....A NEW CONCEPT IN DESIGN OF MATERIALS AND STRUCTURES BASED ON TOPOLOGICALLY INTERLOCKED ELEMENTS. The project aims to develop a new concept in materials design based on assemblies of interlocked elements. Interlocking is achieved topologically by special arrangements of blocks without connectors. Such assemblies can form structures possessing special mechanical properties and serve as load-bearing skeletons in composites with a binder phase providing desired functional properties. Various types of interlocked assemblies will be modelled, produced and tested to determine their mechanical and acoustic properties. A range of experimental techniques tailored for these unusual assemblies will be employed. The expected outcome will be the implementation of the new design principle in multifunctional materials and structures.Read moreRead less
Damage micromechanisms in alumina hybrid bilayers with graded interfaces. This project proposes a new design concept for high performance alumina hybrids with graded interfaces. The key to this process is the incorporation of thin graded interfaces between an outer homogeneous alumina layer for strength, hardness and wear resistance, and an inner heterogeneous alumina hybrid layer for damage tolerance. The project will explore unresolved issues concerning the effect of graded interfaces on the f ....Damage micromechanisms in alumina hybrid bilayers with graded interfaces. This project proposes a new design concept for high performance alumina hybrids with graded interfaces. The key to this process is the incorporation of thin graded interfaces between an outer homogeneous alumina layer for strength, hardness and wear resistance, and an inner heterogeneous alumina hybrid layer for damage tolerance. The project will explore unresolved issues concerning the effect of graded interfaces on the failure micromechanisms. Advances in this area will provide new strategy or insights for designing novel next generation layered materials.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101795
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Exceptional properties by design – NiTi vision. The fundamental leaps in new technologies occur with improvements in the materials with which they are made. Until recently high performance metallic composite design had hit a 20 year blockage in nanocomposite design. The solution, a Nickel, Titanium and Niobium (NiTi-Nb) nanowire composite has been heralded as an era of new possibilities in materials design. This project aims to advance high performance metallic composite design by investigating ....Exceptional properties by design – NiTi vision. The fundamental leaps in new technologies occur with improvements in the materials with which they are made. Until recently high performance metallic composite design had hit a 20 year blockage in nanocomposite design. The solution, a Nickel, Titanium and Niobium (NiTi-Nb) nanowire composite has been heralded as an era of new possibilities in materials design. This project aims to advance high performance metallic composite design by investigating the mechanisms of exceptionally large elastic strains achieved in nanowires embedded in a phase-transforming metallic matrix (i.e. NiTi). An understanding of this high performance nanocomposite design has broad application in medicine and engineering.Read moreRead less
CO2 Utilisation for Energy Storage. This project aims to develop a novel technology that can convert carbon dioxide into useful products while storing intermittent renewable energy as green stable chemical energy. The project plans to focus on the development of a robust cathode for the conversion of carbon dioxide with optimum physical and chemical structure to achieve long-term stable performance. This technology would make a significant contribution to increasing the proportion of renewable e ....CO2 Utilisation for Energy Storage. This project aims to develop a novel technology that can convert carbon dioxide into useful products while storing intermittent renewable energy as green stable chemical energy. The project plans to focus on the development of a robust cathode for the conversion of carbon dioxide with optimum physical and chemical structure to achieve long-term stable performance. This technology would make a significant contribution to increasing the proportion of renewable energy in our energy supply and reducing our carbon dioxide emissions.Read moreRead less
Effects of Phase Purity, Porosity and Oxygen Partial Pressure on the Thermal Stability of Nanolayered Ternary Carbides. The successful completion of this collaborative research will lead to (a) enhanced understanding of the roles of phase purity, porosity and atmosphere on the thermal stability of ternary carbides which is crucial for the design of high-performance ternary carbide heating elements; (b) fostering and strengthening of the continuing research collaboration between Curtin University ....Effects of Phase Purity, Porosity and Oxygen Partial Pressure on the Thermal Stability of Nanolayered Ternary Carbides. The successful completion of this collaborative research will lead to (a) enhanced understanding of the roles of phase purity, porosity and atmosphere on the thermal stability of ternary carbides which is crucial for the design of high-performance ternary carbide heating elements; (b) fostering and strengthening of the continuing research collaboration between Curtin University and the Institute of Metals Research; (c) development of high performance prototype ternary carbide heating elements for use in high temperature furnaces and ovens; and (d) potential joint ventures with local suppliers of furnaces in Australia and China, together with Kanthal of Sweden to assist in the manufacture of ternary carbide heating elements. Read moreRead less
Synthesis of Novel Nanostructured Ternary Carbide Composites. This research will lead to (a) new advances and provide contribution of new knowledge to the Priority Research Areas of Advanced Materials; (b) a novel vacuum heat-treatment process for nanostructured materials design. This will offer the ceramics industry in Australia a new technology for producing wear- and heat-resistant components for advanced engineering applications. (c) design of new layer-graded materials with a unique combina ....Synthesis of Novel Nanostructured Ternary Carbide Composites. This research will lead to (a) new advances and provide contribution of new knowledge to the Priority Research Areas of Advanced Materials; (b) a novel vacuum heat-treatment process for nanostructured materials design. This will offer the ceramics industry in Australia a new technology for producing wear- and heat-resistant components for advanced engineering applications. (c) design of new layer-graded materials with a unique combination of hardness for wear resistance and toughness for damage tolerance. This will enable the ceramics industry in Australia to compete internationally in the business of advanced and high performance ceramic products.Read moreRead less
Atomistic mechanisms of the mechanical behaviour of nanostructured silicon carbide films. Advanced silicon carbide (SiC) ceramics are leading candidates for applications in high-power, high-speed machining and high-temperature structural components. Superhardness and high ductility (or high fracture toughness), which have been realized in some nanostructured (ns) SiC films and nanowires, respectively, are desirable properties for many applications. This project aims to understand the mechanisms ....Atomistic mechanisms of the mechanical behaviour of nanostructured silicon carbide films. Advanced silicon carbide (SiC) ceramics are leading candidates for applications in high-power, high-speed machining and high-temperature structural components. Superhardness and high ductility (or high fracture toughness), which have been realized in some nanostructured (ns) SiC films and nanowires, respectively, are desirable properties for many applications. This project aims to understand the mechanisms behind the exceptional properties in ns SiC and to explore the possibility of realizing the two properties in the same ns SiC. The results obtained from this research will be very important for guiding the structural design of SiC with exceptional mechanical properties which will have a wide range of structural applications.Read moreRead less