Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Social and Behavioral Sciences
Acoustic Emission Monitoring Of Split Formation During Charpy Impact Testing Of High Strength Steel, Andrii Kostryzhev, R B. Punch, Claire L. Davis, Martin Strangwood
Acoustic Emission Monitoring Of Split Formation During Charpy Impact Testing Of High Strength Steel, Andrii Kostryzhev, R B. Punch, Claire L. Davis, Martin Strangwood
Faculty of Engineering and Information Sciences - Papers: Part A
Acoustic emission (AE) monitoring has been used to detect split formation during room temperature low blow Charpy impact testing of high strength thick strip steels. The AE signal analysis identified separate signals originating from hammer impact, plastic deformation (verified using Charpy impact testing on mild steel with no splits) and split initiation/growth. The presence of splits was confirmed by sectioning and fractography, and the splits were brittle in nature. A possible correlation between the AE signal features and fracture mode is presented.
Nonlinear Analysis Of Biaxially Loaded High Strength Rectangular Concrete-Filled Steel Tubular Slender Beam-Columns, Part I: Theory, Qing Quan Liang, Vipulkumar Ishvarbhai Patel, Muhammad N. S Hadi
Nonlinear Analysis Of Biaxially Loaded High Strength Rectangular Concrete-Filled Steel Tubular Slender Beam-Columns, Part I: Theory, Qing Quan Liang, Vipulkumar Ishvarbhai Patel, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a new numerical model for the nonlinear inelastic analysis of biaxially loaded high strength thin-walled rectangular concrete-filled steel tubular (CFST) slender beam-columns. The numerical model considers the effects of progressive local buckling, initial geometric imperfections, high strength materials and second order. The accurate fiber element method is used to model the inelastic behavior of composite cross-sections. Theoretical models are developed that simulate the load-deflection responses and strength envelopes of thin-walled rectangular CFST slender beamcolumns under biaxial loads. New computational algorithms based on the M ller's method are developed to adjust the depth and orientation of the neutral …
Wireless Indoor Localisation Using Received Signal Strength Fingerprinting With Context Aware Partitioning, Montserrat Ros, Brendan Schoots, Matthew D'Souza
Wireless Indoor Localisation Using Received Signal Strength Fingerprinting With Context Aware Partitioning, Montserrat Ros, Brendan Schoots, Matthew D'Souza
Faculty of Engineering and Information Sciences - Papers: Part A
Real-time indoor localisation tracking of people with unobtrusive, wearable sensors has valuable potential for a variety of applications such as remote monitoring and tracking of aged-care patients to improve their safety and other care aspects. There are no widely available or costeffective and ubiquitous wireless solutions like GPS for indoor localisation which require no prior infrastructure. Indoor localisation systems are available but most have difficulties operating in confined spaces or cannot localise to within small distances in real-time for moving objects as required for sport and health applications.
Using Context-Aware Sub Sorting Of Received Signal Strength Fingerprints For Indoor Localisation, Montserrat Ros, Brendan Schoots, Matthew D'Souza
Using Context-Aware Sub Sorting Of Received Signal Strength Fingerprints For Indoor Localisation, Montserrat Ros, Brendan Schoots, Matthew D'Souza
Faculty of Engineering and Information Sciences - Papers: Part A
Mobile indoor localisation has numerous uses for logistics, health, sport and social networking applications. Current wireless localisation systems experience reliability difficulties while operating within indoor environments due to interference caused by the presence of metallic infrastructure. Current position localisation use wireless channel propagation characteristics, such as RF receive signal strength to localise a user's position, which is subject to interference. To overcome this, we developed a Fingerprint Context Aware Partitioning tracking model for tracking people within a building. The Fingerprint Context Aware Partitioning tracking model used received RF signal strength fingerprinting, combined with localised context aware information about the user's …
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel, Lenka Kuzmikova, Nathan Larkin, Zengxi Pan, Mark Callaghan, Huijun Li, John Norrish
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel, Lenka Kuzmikova, Nathan Larkin, Zengxi Pan, Mark Callaghan, Huijun Li, John Norrish
Faculty of Engineering and Information Sciences - Papers: Part A
In this study, the feasibility of hybrid laser-gas metal arc welding process for replacement of conventional flux-cored arc welding procedure for welding high strength quenched and tempered steel was investigated. Experimental work focused on optimisation of process parameters to produce joint with desired properties. Hardness of the weld heat affected zone produced by both processes has been measured. Productivity and cost effectiveness of both processes were compared. It was concluded that hybrid laser-gas metal arc welding process is suitable for welding high strength quenched and tempered steel.
Experimental Study On Chain-Die Forming For Ultrahigh Strength Steel (Uhss), Yuankun Zhang, Shichao Ding
Experimental Study On Chain-Die Forming For Ultrahigh Strength Steel (Uhss), Yuankun Zhang, Shichao Ding
Faculty of Engineering and Information Sciences - Papers: Part A
With the increasing applications of UHSS for the automotive industry, 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 UHSS. With the increase of material's strength and decrease of its thickness, the springback of the material becomes more difficult to predict, which directly affects the application of roll forming in UHSS. 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 has been …