Topology Optimisation of Periodic Structures for Stent Design. Stenting therapy offers new therapeutical strategies to improve the quality of healthcare for numerous cardiovascular disease patients. This project will address the critical issues in stent design involving the delivery, dilatation and ongoing interaction with blood vessel and fluid. The novel topological configurations are expected to bring significant improvement to stent ensuring long-term success. The numerical techniques to be ....Topology Optimisation of Periodic Structures for Stent Design. Stenting therapy offers new therapeutical strategies to improve the quality of healthcare for numerous cardiovascular disease patients. This project will address the critical issues in stent design involving the delivery, dilatation and ongoing interaction with blood vessel and fluid. The novel topological configurations are expected to bring significant improvement to stent ensuring long-term success. The numerical techniques to be developed for optimising topology will provide new tools for design of periodic structures, making a broader impact on an important class of engineering structures and thus benefiting many relevant fields.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100136
Funder
Australian Research Council
Funding Amount
$557,389.00
Summary
Large-volume, multi-use micro-computed tomography. This project aims to augment the existing X-ray micro-computed tomography (CT) scanning capabilities in South Australia and Australia by introducing a large-volume micro-CT scanner. This will enable three-dimensional scanning of large and heavy samples including whole machine parts, limbs/segments, prosthesis devices, large animals and vertebrates, fossils and plant root systems. The project expects to allow experimental testing rigs to be plac ....Large-volume, multi-use micro-computed tomography. This project aims to augment the existing X-ray micro-computed tomography (CT) scanning capabilities in South Australia and Australia by introducing a large-volume micro-CT scanner. This will enable three-dimensional scanning of large and heavy samples including whole machine parts, limbs/segments, prosthesis devices, large animals and vertebrates, fossils and plant root systems. The project expects to allow experimental testing rigs to be placed inside the scanner to test samples, such as mechanical testing of femurs or medical devices, while scanning, to study the structure-function relationships. This will build unlimited computer simulations of mechanical tests, valuable for precious specimens. Benefits will include aiding in risk reduction, decision making on products and a higher quality workforce.Read moreRead less
Geotechnical and soil-structure interaction properties of soils in Perth CBD. A new underground railway (City Project) will shortly begin construction in Perth CBD. This construction, and its associated high level of monitoring instrumentation, offers a unique opportunity for an extensive and thorough examination of the mechanical properties of Perths soils. The research results emanating from the proposed combination of field monitoring, laboratory investigation and numerical analysis, will gre ....Geotechnical and soil-structure interaction properties of soils in Perth CBD. A new underground railway (City Project) will shortly begin construction in Perth CBD. This construction, and its associated high level of monitoring instrumentation, offers a unique opportunity for an extensive and thorough examination of the mechanical properties of Perths soils. The research results emanating from the proposed combination of field monitoring, laboratory investigation and numerical analysis, will greatly improve the reliability (and hence cost) of future foundation and basement designs in Perth and elsewhere.Read moreRead less
Numerical prediction of train and vehicle induced ground vibrations and their effects on structures. This project will develop an innovative new method based on coupled finite element and scaled boundary finite-element analysis for predicting the ground vibrations induced by road traffic and underground or surface trains. The method will have immediate application in transportation engineering to predict traffic-induced ground vibrations, in geotechnical engineering to design isolation trenches ....Numerical prediction of train and vehicle induced ground vibrations and their effects on structures. This project will develop an innovative new method based on coupled finite element and scaled boundary finite-element analysis for predicting the ground vibrations induced by road traffic and underground or surface trains. The method will have immediate application in transportation engineering to predict traffic-induced ground vibrations, in geotechnical engineering to design isolation trenches and wave barriers to dissipate wave propagation, and in structural engineering to estimate in-structure vibration level and design isolators for sensitive equipment housed within. The technique will involve fundamental advances in the scaled boundary finite-element method, as calculations will be performed in a moving reference frame.Read moreRead less
Time-dependent dynamic, creep and shrinkage response of curved structural members. This project concerns curved structural members, such as bridge beams, that are subjected to dynamic excitation and to concrete shrinkage and creep. Hitherto, unified formulations for the structural behaviour of these members have not been properly developed. The proposal seeks to build on a previous ARC DP of the investigator that produces significant results for static loading, by developing a sophisticated meth ....Time-dependent dynamic, creep and shrinkage response of curved structural members. This project concerns curved structural members, such as bridge beams, that are subjected to dynamic excitation and to concrete shrinkage and creep. Hitherto, unified formulations for the structural behaviour of these members have not been properly developed. The proposal seeks to build on a previous ARC DP of the investigator that produces significant results for static loading, by developing a sophisticated methodology to handle non-static dynamic loading and for shrinkage and creep. It will develop advanced mathematical tools to enable the safe and efficient design of a multiplicity of structures that is of benefit to on and offshore Australian technology.Read moreRead less
Progressive collapse resistance of concrete flat plate structures. This project aims to systematically and thoroughly investigate the progressive collapse mechanisms and resistance capacity of concrete flat plate structures. They represent one of the most common construction systems used worldwide in modern days, yet their progressive collapse mechanisms require attention and limited collapse prevention design guidelines are available. The outcomes are expected to broaden and deepen the existing ....Progressive collapse resistance of concrete flat plate structures. This project aims to systematically and thoroughly investigate the progressive collapse mechanisms and resistance capacity of concrete flat plate structures. They represent one of the most common construction systems used worldwide in modern days, yet their progressive collapse mechanisms require attention and limited collapse prevention design guidelines are available. The outcomes are expected to broaden and deepen the existing theoretical framework and knowledge base, prevent injury and loss of life in both new and existing buildings. This is expected ultimately to contribute to the establishment of a set of collapse-resistant design guidelines for further development of relevant Australian and international standards.Read moreRead less
Development of sophisticated structural design guidelines for the new building product known as Rapidwall. Rapidwall is an Australian made new composite building product made from formulated gypsum plaster and glass-fibre. This is a high-tech building product that has huge potential to be developed into a dominant building material in the future. It is economic, labor effective, eco-friendly, structural sound and fire, thermal resistant and has many advantages over the existing building material ....Development of sophisticated structural design guidelines for the new building product known as Rapidwall. Rapidwall is an Australian made new composite building product made from formulated gypsum plaster and glass-fibre. This is a high-tech building product that has huge potential to be developed into a dominant building material in the future. It is economic, labor effective, eco-friendly, structural sound and fire, thermal resistant and has many advantages over the existing building materials, such as concrete, steel and masonry. The lack of a technical design guidelines has fundamentally obstructed it from expanding its market share both in Australia and overseas. This proposal aims at developing a structural design manual for the new product.Read moreRead less
Unified nondeterministic dynamic safety assessment of softening structures. This project aims to develop a high-performance tool for the dynamic safety assessment of softening structures. The assessment of structures that exhibit softening, either at constitutive level or structural level, is essential for design and rehabilitation purposes, especially when the inevitable uncertainties in the system parameters need to be accounted for. This project aims to develop an advanced and unified framewo ....Unified nondeterministic dynamic safety assessment of softening structures. This project aims to develop a high-performance tool for the dynamic safety assessment of softening structures. The assessment of structures that exhibit softening, either at constitutive level or structural level, is essential for design and rehabilitation purposes, especially when the inevitable uncertainties in the system parameters need to be accounted for. This project aims to develop an advanced and unified framework that can model both stochastic and nonstochastic processes for these purposes. An advanced mixed finite element model underpins this framework, and both formulation and solution algorithms are based on mathematical programming formalism. The developed computational tool would be able to perform pure stochastic, pure nonstochastic, hybrid uncertain analyses and dynamic reliability assessment of structures.Read moreRead less
Three-dimensional contact and fracture analysis for safety assessment of structures. This project aims to address the safety assessment of engineering structures considering interfaces and cracks, which are nearly always the weakest parts of a structure system. Novel numerical approaches to model the contact of interfaces and crack faces and to simulate crack propagation under variable loads will be established based on the scaled boundary polytope elements and mathematical programming. It is an ....Three-dimensional contact and fracture analysis for safety assessment of structures. This project aims to address the safety assessment of engineering structures considering interfaces and cracks, which are nearly always the weakest parts of a structure system. Novel numerical approaches to model the contact of interfaces and crack faces and to simulate crack propagation under variable loads will be established based on the scaled boundary polytope elements and mathematical programming. It is anticipated that the developed numerical simulation tool will be robust and fully automatic. The intended outcome of this project is an innovative technology for numerical simulation and a rational predictive tool useful for cost-effective and timely planning, design and management of engineering structures.Read moreRead less
Stochastic geometrically nonlinear elasto-plastic buckling and behaviour of curved grid-like structures. It is vital to assess the safety of large spatially curved-complex structures for design and rehabilitation purposes when the inevitable uncertainties in structural parameters and loads are addressed. This project aims to develop an advanced stochastic framework for three-dimensional nonlinear elasto-plastic behaviour and buckling analysis of curved grid-like structures. A rational and powerf ....Stochastic geometrically nonlinear elasto-plastic buckling and behaviour of curved grid-like structures. It is vital to assess the safety of large spatially curved-complex structures for design and rehabilitation purposes when the inevitable uncertainties in structural parameters and loads are addressed. This project aims to develop an advanced stochastic framework for three-dimensional nonlinear elasto-plastic behaviour and buckling analysis of curved grid-like structures. A rational and powerful stochastic nonlinear elasto-plastic finite element model will be proposed to account for the random high-order geometric nonlinearity and material elasto-plasticity. Novel formulations and effective algorithms will also be devised for stochastic nonlinear analytical analysis. An efficient tool will be developed for reliability assessment of the class of structures.Read moreRead less