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- Faculty of Engineering and Information Sciences - Papers: Part A (25)
- Faculty of Engineering and Information Sciences - Papers: Part B (8)
- Faculty of Science, Medicine and Health - Papers: part A (5)
- Faculty of Social Sciences - Papers (Archive) (3)
- Faculty of Health and Behavioural Sciences - Papers (Archive) (1)
Articles 1 - 30 of 43
Full-Text Articles in Social and Behavioral Sciences
Strength From Perpetual Grief: How Aboriginal People Experience The Bushfire Crisis, Bhiamie Williamson, Jessica Weir, Vanessa I. Cavanagh
Strength From Perpetual Grief: How Aboriginal People Experience The Bushfire Crisis, Bhiamie Williamson, Jessica Weir, Vanessa I. Cavanagh
Faculty of Social Sciences - Papers (Archive)
How do you support people forever attached to a landscape after an inferno tears through their homelands: decimating native food sources, burning through ancient scarred trees and destroying ancestral and totemic plants and animals? The fact is, the experience of Aboriginal peoples in the fire crisis engulfing much of Australia is vastly different to non-Indigenous peoples. Colonial legacies of eradication, dispossession, assimilation and racism continue to impact the lived realities of Aboriginal peoples. Added to this is the widespread exclusion of our peoples from accessing and managing traditional homelands. These factors compound the trauma of these unprecedented fires. As Australia …
Local-Global Interaction Buckling Of Square High Strength Concrete-Filled Double Steel Tubular Slender Beam-Columns, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Local-Global Interaction Buckling Of Square High Strength Concrete-Filled Double Steel Tubular Slender Beam-Columns, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
High-strength square concrete-filled double steel tubular (CFDST) slender beam-columns with a circular internal steel tube subjected to eccentric loads may undergo interaction local-global buckling. No computational studies on the interaction local-global buckling of slender square CFDST beam-columns have been reported and their behavior has not been fully understood. This paper describes a mathematical model for the simulation of the interaction local-global buckling behavior of square high-strength CFDST slender beam-columns under axial compression in combination with uniaxial bending. The mathematical model is formulated by the fiber approach, accounting for confinement provided by the internal circular steel tube, and geometric and material …
Investigation Of Engineering Properties Of Normal And High Strength Fly Ash Based Geopolymer And Alkali-Activated Slag Concrete Compared To Ordinary Portland Cement Concrete, Nabeel Farhan, M Neaz Sheikh, Muhammad N. S Hadi
Investigation Of Engineering Properties Of Normal And High Strength Fly Ash Based Geopolymer And Alkali-Activated Slag Concrete Compared To Ordinary Portland Cement Concrete, Nabeel Farhan, M Neaz Sheikh, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
Fly ash-based geopolymer (FAGP) and alkali-activated slag (AAS) concrete are produced by mixing alkaline solutions with aluminosilicate materials. As the FAGP and AAS concrete are free of Portland cement, they have a low carbon footprint and consume low energy during the production process. This paper compares the engineering properties of normal strength and high strength FAGP and AAS concrete with OPC concrete. The engineering properties considered in this study included workability, dry density, ultrasonic pulse velocity (UPV), compressive strength, indirect tensile strength, flexural strength, direct tensile strength, and stress-strain behaviour in compression and direct tension. Microstructural observations using scanning electronic …
Concrete Strength Reduction Due To Over Compaction, Ryan Howes, Muhammad N. S Hadi, Warren J. South
Concrete Strength Reduction Due To Over Compaction, Ryan Howes, Muhammad N. S Hadi, Warren J. South
Faculty of Engineering and Information Sciences - Papers: Part B
The purpose of this study was to evaluate the effect of over-compaction on the strength of concrete with regards to commercial and industry practices. Normal concrete, which is commonly used in construction was chosen. Samples were cast using a varying vibration time and testing was performed to determine concrete compressive strength, air content, density and a measure for segregation. These parameters were used to determine the relative sensitivity of concrete to under- versus over-compaction. If segregation was present, it was hypothesized the results would indicate a mathematical relationship between the segregation and strength reduction. This relationship would allow for determination …
Numerical Analysis Of Axially Loaded Circular High Strength Concrete-Filled Double Steel Tubular Short Columns, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Numerical Analysis Of Axially Loaded Circular High Strength Concrete-Filled Double Steel Tubular Short Columns, Mizen Ahmed, Qing Quan Liang, Vipulkumar I. Patel, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
Circular high-strength concrete-filled double steel tubular (CFDST) columns are high performance members where the internal and external steel tubes offer significant confinement to the concrete infill. The confinement remarkably improves the concrete compressive strength and ductility. However, no fiber element models have been formulated for computing the responses of CFDST columns with circular steel tubes filled with high-strength concrete incorporating accurate confinement to the core and sandwiched concrete. In this paper, a new fiber-based numerical model is developed that computes the axial load-strain responses of circular high-strength CFDST short columns under axial loading. Based on existing experimental results, a new …
Experimental Evaluation Of Tensile Strength Test Methods For Steel Fibre-Reinforced Concrete, Hussam A. Goaiz, Nabeel Farhan, M Neaz Sheikh, Tao Yu, Muhammad N. S Hadi
Experimental Evaluation Of Tensile Strength Test Methods For Steel Fibre-Reinforced Concrete, Hussam A. Goaiz, Nabeel Farhan, M Neaz Sheikh, Tao Yu, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part B
This study presents an experimental evaluation of three different methods for determining the tensile strength of steel fibre reinforced concrete (SFRC). The test methods include the splitting test (ST), double punch test (DPT) and direct tensile test (DTT). The compressive strength of the concrete used in this study ranged between 30 and 80 MPa with 0%, 1·5% and 3% steel fibre by volume of the concrete. In total, 81 concrete cylinders were cast and tested for 28-d compressive strength, splitting tensile strength and double punch tensile strength of the concrete. In addition, 27 concrete prism specimens were cast and tested …
Two Decades Of Advancement In Process Simulation Testing Of Ballast Strength, Deformation, And Degradation, Buddhima Indraratna, Ngoc Trung Ngo, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn
Two Decades Of Advancement In Process Simulation Testing Of Ballast Strength, Deformation, And Degradation, Buddhima Indraratna, Ngoc Trung Ngo, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn
Faculty of Engineering and Information Sciences - Papers: Part B
This paper describes salient features of a set of large-scale ballast testing equipment developed at the University of Wollongong, Australia, and how the test results and research outcomes have contributed to transforming tracks in the Australian heavy haul and commuter networks, particularly with regards to the strength, deformation, and degradation of ballast. Ideally, ballast assemblies should be tested in prototype scale under actual loading conditions. This is because a reduction in particle sizes for testing in smaller equipment can reduce the internal angle of friction (shearing resistance) of the granular assembly in a macro sense, and the angularity of the …
Nonlinear Analysis Of Circular High Strength Concrete-Filled Stainless Steel Tubular Slender Beam-Columns, Vipulkumar I. Patel, Qing Quan Liang, Muhammad N. S Hadi
Nonlinear Analysis Of Circular High Strength Concrete-Filled Stainless Steel Tubular Slender Beam-Columns, Vipulkumar I. Patel, Qing Quan Liang, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
Concrete-filled stainless steel tubular (CFSST) slender columns are increasingly used in composite structures owing to their distinguished features, such as aesthetic appearance, high corrosion resistance, high durability and ease of maintenance. Currently, however, there is a lack of an accurate and efficient numerical model that can be utilized to determine the performance of circular CFSST slender columns. This paper describes a nonlinear fiber-based model proposed for computing the deflection and axial load-moment strength interaction responses of eccentrically loaded circular high-strength CFSST slender columns. The fiber-based model incorporates the accurate three-stage stress-strain relations of stainless steels, accounting for different strain hardening …
Effect Of Groove Spacing On Bond Strength Of Near-Surface Mounted (Nsm) Bonded Joints With Multiple Frp Strips, Shi Shun Zhang, Tao Yu
Effect Of Groove Spacing On Bond Strength Of Near-Surface Mounted (Nsm) Bonded Joints With Multiple Frp Strips, Shi Shun Zhang, Tao Yu
Faculty of Engineering and Information Sciences - Papers: Part B
In the strengthening of existing deficient structures using the near-surface mounted (NSM) FRP method, a group of parallel NSM FRP strips are usually needed to meet the capacity enhancement requirement. When the groove spacing (i.e., the net distance between grooves) is relatively small, the bond behaviour of each NSM FRP strip is detrimentally influenced by the adjacent grooves/FRP strips, and such detrimental effect should be taken into account for a safe design of the NSM FRP strengthening system. All the existing models, however, have been proposed for NSM bonded joints with a single FRP strip and thus cannot consider the …
Impact Resistance Of Ultra-High Strength Concrete Beams With Frp Reinforcement, Alex M. Remennikov, Matthew Goldston, M Neaz Sheikh
Impact Resistance Of Ultra-High Strength Concrete Beams With Frp Reinforcement, Alex M. Remennikov, Matthew Goldston, M Neaz Sheikh
Faculty of Engineering and Information Sciences - Papers: Part A
Composite materials, including Fibre Reinforced Polymer (FRP) bars, have been used for decades in the structural and civil engineering sectors over traditional steel reinforcement. The main reasons for this are that FRP composites possess a number of advantages. They are non-corrosive, non-conductive, and lightweight and possess high longitudinal tensile strength. This paper presents the results of an experimental investigation into the effects of the use of glass FRP (GFRP) bars as internal reinforcement on the behaviour of concrete beams with high strength concrete (HSC) and ultra-high strength concrete (UHSC). Both static and dynamic (impact) behaviours of the beam have been …
Lean Body Mass Associated With Upper Body Strength In Healthy Older Adults While Higher Body Fat Limits Lower Extremity Performance And Endurance, Karen E. Charlton, Marijka Batterham, Kelly Langford, Jenna Lateo, Erin Brock, Karen L. Walton, Philippa M. Lyons-Wall, Katie Eisenhauer, Nick Green, Cameron Mclean
Lean Body Mass Associated With Upper Body Strength In Healthy Older Adults While Higher Body Fat Limits Lower Extremity Performance And Endurance, Karen E. Charlton, Marijka Batterham, Kelly Langford, Jenna Lateo, Erin Brock, Karen L. Walton, Philippa M. Lyons-Wall, Katie Eisenhauer, Nick Green, Cameron Mclean
Faculty of Science, Medicine and Health - Papers: part A
Impaired strength adversely influences an older person's ability to perform activities of daily living. A cross-sectional study of 117 independently living men and women (age = 73.4 9.4 year; body mass index (BMI) = 27.6 4.8 kg/m2) aimed to assess the association between body composition and: (1) upper body strength (handgrip strength, HGS); (2) lower extremity performance (timed up and go (TUG) and sit to stand test (STS)); and (3) endurance (6-minute walk (SMWT). Body composition (% fat; lean body mass (LBM)) was assessed using bioelectrical impedance. Habitual physical activity was measured using the Minnesota Leisure Time Physical Activity Questionnaire …
Graphene Cryogel Papers With Enhanced Mechanical Strength For High Performance Lithium Battery Anodes, Kewei Shu, Caiyun Wang, Meng Wang, Chen Zhao, Gordon G. Wallace
Graphene Cryogel Papers With Enhanced Mechanical Strength For High Performance Lithium Battery Anodes, Kewei Shu, Caiyun Wang, Meng Wang, Chen Zhao, Gordon G. Wallace
Faculty of Science, Medicine and Health - Papers: part A
A porous graphene paper was prepared by pressing a graphene cryogel, followed by thermal reduction at 220 °C. The cryogel was formed by freeze-drying a solution containing chemically reduced graphene and graphene oxide (CRG/GO). The formed graphene cryogel papers deliver a much higher discharge capacity and rate capability than that from conventional graphene papers fabricated by filtration. These new structures have a discharge capacity higher than 400 mA h g−1 at a current density of 2000 mA g−1 in sharp contrast to 229 mA h g−1 at 50 mA g−1 obtained from conventional graphene papers. These greatly improved electrochemical properties …
The Formation Of Complex Microstructures After Different Deformation Modes In Advanced High-Strength Steels, Ilana Timokhina, Elena V. Pereloma, Peter Hodgson
The Formation Of Complex Microstructures After Different Deformation Modes In Advanced High-Strength Steels, Ilana Timokhina, Elena V. Pereloma, Peter Hodgson
Faculty of Engineering and Information Sciences - Papers: Part A
The microstructure of transformation induced plasticity (TRIP) and dual phase (DP) multiphase steels after stamping of an industrial component at different strain levels was investigated using transmission electron microscopy. The TRIP steel microstructure showed a more complex dislocation substructure of ferrite at different strain levels than DP steel. The deformation microstructure of the stamped parts was compared to the deformation microstructure in these complex steels for different "equivalent" tensile strains. It was found that the microstructures are similar only at high levels of strain (>10 pct) for both steels.
Source Strength And Dispersion Of Co2 Releases From High-Pressure Pipelines: Cfd Model Using Real Gas Equation Of State, Xiong Liu, Ajit Godbole, Cheng Lu, Guillaume Michal, Phillip Venton
Source Strength And Dispersion Of Co2 Releases From High-Pressure Pipelines: Cfd Model Using Real Gas Equation Of State, Xiong Liu, Ajit Godbole, Cheng Lu, Guillaume Michal, Phillip Venton
Faculty of Engineering and Information Sciences - Papers: Part A
Transportation of CO2 in high-pressure pipelines forms a crucial link in the ever-increasing application of Carbon Capture and Storage (CCS) technologies. An unplanned release of CO2 from a pipeline presents a risk to human and animal populations and the environment. Therefore it is very important to develop a deeper understanding of the atmospheric dispersion of CO2 before the deployment of CO2 pipelines, to allow the appropriate safety precautions to be taken. This paper presents a two-stage Computational Fluid Dynamics (CFD) study developed (1) to estimate the source strength, and (2) to simulate the subsequent dispersion of CO2 in the atmosphere, …
Confinement Model For Frp Confined Normal- And High-Strength Concrete Circular Columns, Thong M. Pham, Muhammad N. S Hadi
Confinement Model For Frp Confined Normal- And High-Strength Concrete Circular Columns, Thong M. Pham, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
This study establishes a confinement model for FRP confined normal- and high-strength concrete circular columns. A new column parameter was suggested for estimating the compressive strength of FRP confined concrete. The proposed model is able to predict the ultimate condition of FRP confined concrete columns that have similar unconfined concrete strength and confining pressure but significant differences in the jacket stiffness. The proposed model was then verified using a database of 574 FRP confined concrete circular columns with different types of FRP. This database covers unconfined concrete strength between 15 MPa and 170 MPa and specimens with a diameter ranging …
Shear Strength Of Rock Joints Influenced By Compacted Infill, Buddhima Indraratna, Wuditha N. Premadasa, Edwin T. Brown, Antonio Gens, Ana Heitor
Shear Strength Of Rock Joints Influenced By Compacted Infill, Buddhima Indraratna, Wuditha N. Premadasa, Edwin T. Brown, Antonio Gens, Ana Heitor
Faculty of Engineering and Information Sciences - Papers: Part A
Discontinuities such as fault planes, joints and bedding planes in a rock mass may be filled with different types of fine-grained material that are either transported or accumulated as gouge due to weathering or joint shearing. Previous laboratory studies have mainly examined the role of saturated infill that exhibits the minimum shear strength. However, in practice, the infill materials are often partially saturated generating matric suction within the joint that can contribute to increased shear strength. To the authors' knowledge this is the first study to examine the influence of compacted (unsaturated) infill on the joint shear strength. A series …
Numerical Analysis Of High-Strength Concrete-Filled Steel Tubular Slender Beam-Columns Under Cyclic Loading, Vipulkumar Patel, Qing Quan Liang, Muhammad N. S Hadi
Numerical Analysis Of High-Strength Concrete-Filled Steel Tubular Slender Beam-Columns Under Cyclic Loading, Vipulkumar Patel, Qing Quan Liang, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
The effects of cyclic local buckling on the behavior of concrete-filled steel tubular (CFST) slender beam-columns under cyclic loading were approximately considered in existing analytical methods by modifying the stress– strain curve for the steel tube in compression. These methods, however, cannot simulate the progressive cyclic local buckling of the steel tubes. This paper presents a new efficient numerical model for predicting the cyclic performance of high strength rectangular CFST slender beam-columns accounting for the effects of progressive cyclic local buckling of steel tube walls under stress gradients. Uniaxial cyclic constitutive laws for the concrete core and steel tubes are …
Effect Of Niobium Clustering And Precipitation On Strength Of A Nbti-Microalloyed Ferritic Steel, Andrii Kostryzhev, Abdullah Alshahrani, Chen Zhu, Julie Cairney, Simon Peter Ringer, Chris Killmore, E V. Pereloma
Effect Of Niobium Clustering And Precipitation On Strength Of A Nbti-Microalloyed Ferritic Steel, Andrii Kostryzhev, Abdullah Alshahrani, Chen Zhu, Julie Cairney, Simon Peter Ringer, Chris Killmore, E V. Pereloma
Faculty of Engineering and Information Sciences - Papers: Part A
The microstructure-property relationship of an NbTi-microalloyed ferritic steel was studied as a function of thermo-mechanical schedule using Gleeble 3500 simulator, optical and scanning electron microscope, and atom probe tomography.
A New Empirical Model For Shear Strength Of Reinforced Concrete Beam - Column Connections, Tung Tran, Muhammad N. S Hadi, Thong M. Pham
A New Empirical Model For Shear Strength Of Reinforced Concrete Beam - Column Connections, Tung Tran, Muhammad N. S Hadi, Thong M. Pham
Faculty of Engineering and Information Sciences - Papers: Part A
A new empirical model to estimate the joint shear strength of both exterior and interior beam-column connections is proposed. In the model, four parameters that have the most influence on joint shear strength are considered. Among these four, a new parameter is introduced to consider the bond condition and the possibility of beam bars transferring joint shear force into the columns. Consideration of this parameter in the model significantly improves the accuracy of the predicted joint shear strength. To calibrate the model, a large database of 98 reinforced concrete (RC) exterior and 73 RC interior beam-column connections displaying joint failure …
Effects Of Age On Strength Of The Toe Flexor Muscles, Karen J. Mickle, Salih Angin, Gillian Crofts, Julie R. Steele, Christopher Nester
Effects Of Age On Strength Of The Toe Flexor Muscles, Karen J. Mickle, Salih Angin, Gillian Crofts, Julie R. Steele, Christopher Nester
Faculty of Science, Medicine and Health - Papers: part A
Abstract of paper that presented at the Eleventh Footwear Biomechanics Symposium, Natal, Brazil, 2013.
Lying Down On The Job- Does Posture Affect Grip Strength And Opening Hospital Food And Beverage Packaging?, Alison Bell, Jacqueline Chevis, Nicola Westblade, Kate Morson, Karen Walton
Lying Down On The Job- Does Posture Affect Grip Strength And Opening Hospital Food And Beverage Packaging?, Alison Bell, Jacqueline Chevis, Nicola Westblade, Kate Morson, Karen Walton
Faculty of Science, Medicine and Health - Papers: part A
Abstract of paper that presented at the Occupational Therapy Australia, 25th National Conference and Exhibition, 24-26 July 2013, Adelaide Convention Centre.
Aim(E) For Completing School And University: Analysing The Strength Of The Australian Indigenous Mentoring Experience, Gawaian Bodkin-Andrews, Valerie Harwood, Samantha Mcmahon, Amy Priestly
Aim(E) For Completing School And University: Analysing The Strength Of The Australian Indigenous Mentoring Experience, Gawaian Bodkin-Andrews, Valerie Harwood, Samantha Mcmahon, Amy Priestly
Faculty of Social Sciences - Papers (Archive)
Purpose: Generally, theory and research investigating the effectiveness of mentoring has offered little resounding evidence to attest to mentoring programmes being a strategic initiative that make a real difference in reducing the educational inequities many minority students endure. In contrast to this existing research base, the Australian Indigenous Mentoring Experience (AIME) has often been cited as one of the most successful mentoring initiatives within Australia. It is the purpose of this chapter to examine how AIME may impact on the educational aspirations and school self-concept of Aboriginal and Torres Strait Islander students. Methodology: A series of multi-group analyses were centred …
Comparison Between Traditional And Reverse Periodization: Swimming Performance And Specific Strength Values, J J. Arroyo-Toledo, Vicente J. Clemente, Jose M. Gonzalez-Rave, Domingo J. Ramos Campo, Andrew Sortwell
Comparison Between Traditional And Reverse Periodization: Swimming Performance And Specific Strength Values, J J. Arroyo-Toledo, Vicente J. Clemente, Jose M. Gonzalez-Rave, Domingo J. Ramos Campo, Andrew Sortwell
Faculty of Social Sciences - Papers (Archive)
International Journal of Swimming Kinetics 2(1): 87-96, 2013. Periodization of athletic training is conceptualized as a pedagogical process, which involves varying volume, intensity and frequency of training in attempt to optimize sporting performance. The primary purpose of this research was to compare changes in 100m swim performance (t100c), specific swim power output (SSP) and maximum drag charge (MDC), after 14 weeks of training traditional periodization (control) and reverse periodization (treatment). There were 26 volunteer swimmers (16.02±0.6 yrs. 1.72±9.3 cm 64.1±9.3 kg) divided in two groups traditional periodization (TP) and reverse periodization (RP). Results at the 14th week showed significant improvements …
Microstrength, Strength And Microstructure Of Carbonaceous Materials, Xing Xing, Guangqing Zhang, George Ciezki, Mark Dell'amico, Oleg Ostrovski
Microstrength, Strength And Microstructure Of Carbonaceous Materials, Xing Xing, Guangqing Zhang, George Ciezki, Mark Dell'amico, Oleg Ostrovski
Faculty of Engineering and Information Sciences - Papers: Part A
The effect of heat treatment at 700-1500 ºC on the mechanical strength, micro strength and pore structure of carbonaceous materials, including coke, char and coals, were studied using tensile test, ultra micro indentation and image analysis. Strength of chars and pyrolysed coals was strongly enhanced by heat treatment at temperature below 1100 °C; strength of cokes was slightly degraded after heat treatment at 1500 °C. Mechanical strength of carbonaceous materials was demonstrated to be significantly affected by micro strength and porosity. Micro strength of chars and coals was significantly enhanced by heat treatment, whereas micro strength of cokes was only …
Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables, Lenka Kuzmikova, Huijun Li, John Norrish, Zengxi Stephen Pan, Nathan Larkin
Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables, Lenka Kuzmikova, Huijun Li, John Norrish, Zengxi Stephen Pan, Nathan Larkin
Faculty of Engineering and Information Sciences - Papers: Part A
High strength quenched and tempered (Q&T) steels offer obvious economic benefits originating from their advantageous strength to price and weight ratios. These steels are usually welded using ferritic consumables and for this combination the risk of hydrogen assisted cold cracking (HACC) is high. The use of austenitic stainless steel (ASS) consumables has great potential to significantly improve this issue. Yet, there are no guidelines for determination of safe level of preheat for welding ferritic steels with ASS consumables. For this reason manufacturers adopt this parameter from procedures developed for conventional ferritic consumables thus significantly limiting the benefits ASS consumables are …
Strength And Bonding In Reduced Ironsand-Coal Compacts, R J. Longbottom, B J. Monaghan, S A. Nightingale, J G. Mathieson
Strength And Bonding In Reduced Ironsand-Coal Compacts, R J. Longbottom, B J. Monaghan, S A. Nightingale, J G. Mathieson
Faculty of Engineering and Information Sciences - Papers: Part A
In this investigation, the strength and bonding within reduced ironsand-coal compacts were studied, with the aim of better understanding the binding mechanisms in the reduced compacts and, based on this understanding, to improve their strength. Ironsand ore and sub-bituminous coal were mixed and pressed into compacts, which were reduced by heating in a thermogravimetric furnace to temperatures between 1273 and 1573 K under argon. The progress of the reaction was monitored by measuring the weight loss with time. The reduced compacts were found to have low strength in compression testing. The main form of bonding between the reduced ironsand particles …
Effect Of Rice Husk Ash On Workability And Strength Of Concrete, Avinash Babu Srinivasreddy, Timothy J. Mccarthy, Eric Lume
Effect Of Rice Husk Ash On Workability And Strength Of Concrete, Avinash Babu Srinivasreddy, Timothy J. Mccarthy, Eric Lume
Faculty of Engineering and Information Sciences - Papers: Part A
Rice husk ash (RHA) is an agricultural waste which is a pozzolanic material that can be blended with the cement for manufacturing concrete. Its use can reduce the environmental impact of the cement industry. The present study investigates the chemical and morphological nature of RHA and silica fume (SF). Both can be used to improve strength and durability properties of concrete. Particle size distribution, loss on ignition (LOI), X-ray diffraction analysis, scanning electron microscopic were conducted. The effect of replacement of cement 5%, 10% and 15% by weight with SF and RHA on compressive strength and workability has also been …
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Parametric Study On Chain-Die Forming For Advanced High Strength Steels, Yuankun Zhang, Shichao Ding
Parametric Study On Chain-Die Forming For Advanced High Strength Steels, Yuankun Zhang, Shichao Ding
Faculty of Engineering and Information Sciences - Papers: Part A
As the applications of AHSS for the automotive industry are increasing significantly within the last decade, it becomes more and more important to develop a new forming technology as an alternative or even a replacement to roll forming to overcome the difficulties and problems of manufacturing the AHSS parts. The springback of the material with higher strength and thinner thickness becomes more difficult to predict, which directly affects the application of roll forming in AHSS. Chain-die forming, as an alternative to roll forming proposed and developed recently in Australia, is expected to be a solution to the problems addressed. It …
Addressing Retained Austenite Stability In Advanced High Strength Steels, Elena V. Pereloma, Azdiar A. Gazder, Ilana B. Timokhina
Addressing Retained Austenite Stability In Advanced High Strength Steels, Elena V. Pereloma, Azdiar A. Gazder, Ilana B. Timokhina
Faculty of Engineering and Information Sciences - Papers: Part A
Advances in the development of new high strength steels have resulted in microstructures containing significant volume fractions of retained austenite. The transformation of retained austenite to martensite upon straining contributes towards improving the ductility. However, in order to gain from the above beneficial effect, the volume fraction, size, morphology and distribution of the retained austenite need to be controlled. In this regard, it is well known that carbon concentration in the retained austenite is responsible for its chemical stability, whereas its size and morphology determines its mechanical stability. Thus, to achieve the required mechanical properties, control of the processing parameters …