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Full-Text Articles in Engineering
Microstructural Characterisation And Mechanical Evaluation Of Ti-15mo Manufactured By Laser Metal Deposition, Edohamen Awannegbe, Huijun Li, Tingting Song, Frank Niessen, Ma Qian, Azdiar A. Gazder, Mitchell John Bromley Nancarrow, Elena V. Pereloma
Microstructural Characterisation And Mechanical Evaluation Of Ti-15mo Manufactured By Laser Metal Deposition, Edohamen Awannegbe, Huijun Li, Tingting Song, Frank Niessen, Ma Qian, Azdiar A. Gazder, Mitchell John Bromley Nancarrow, Elena V. Pereloma
Faculty of Engineering and Information Sciences - Papers: Part B
A bidirectional powder deposition strategy was employed to additively manufacture Ti-15Mo wt% using laser metal deposition. Phase identification, elemental analysis and microstructural characterisation were conducted after fabrication and uniaxial tensile testing using X-ray diffraction and scanning electron microscopy along the different processing directions. In addition, electron backscattering diffraction and transmission electron microscopy were used to analyse deformation mechanisms. It was found that three distinct zones, namely the fusion, remelted and heat affected zones, evolved in all 25 deposited layers which predominantly comprised coarse columnar grains. Mo segregation was pronounced in the as-built microstructure. Deformation accommodation in β matrix was by …
Thermal Effect During Laser-Induced Plasmonic Heating Of Polyelectrolyte-Coated Gold Nanorods In Well Plates, Sujin Jiracheewanun, Michael B. Cortie, Dakrong Pissuwan
Thermal Effect During Laser-Induced Plasmonic Heating Of Polyelectrolyte-Coated Gold Nanorods In Well Plates, Sujin Jiracheewanun, Michael B. Cortie, Dakrong Pissuwan
Faculty of Engineering and Information Sciences - Papers: Part B
We examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element model were compared to experimental measurements. It is found that relatively high fluences must be applied in order to generate biologically relevant changes in temperature. This is due to the significant lateral heat transfer from the sides of the well, which strongly limits the temperature that can be achieved. A 650 mW continuous-wave (CW) laser, with a …
Finite Element Analysis Of Square Frp-Concrete-Steel Columns Under Eccentric Compression, Amin Izadi, Lip H. Teh, Aziz Ahmed, Maria Anna Polak
Finite Element Analysis Of Square Frp-Concrete-Steel Columns Under Eccentric Compression, Amin Izadi, Lip H. Teh, Aziz Ahmed, Maria Anna Polak
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents the development of a finite element (FE) methodology for investigating the behavior of the FRP, concrete and steel components of a square FRP-concrete-steel composite (FCSC) columns with a rotated square inner steel tube. The FE models are developed in ABAQUS using the authors’ recently refined Concrete Damage Plasticity Model (CDPM) in conjunction with the FRP damage criteria available in the literature. The developed FE methodology is verified against the authors’ experimental test results involving columns with normal and rotated square inner steel tubes under eccentric loading, and the FE analysis results are used to explain the …