Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Engineering
Neutron Diffraction Study Of The Magnetic Order In Ndmn2ge1.6si0.4, Jianli Wang, Stewart J. Campbell, John M. Cadogan, A J Studer, Rong Zeng, S. X. Dou
Neutron Diffraction Study Of The Magnetic Order In Ndmn2ge1.6si0.4, Jianli Wang, Stewart J. Campbell, John M. Cadogan, A J Studer, Rong Zeng, S. X. Dou
Faculty of Engineering - Papers (Archive)
Here we report a detailed investigation of NdMn2Ge1.6Si0.4; this forms part of our investigation of the magnetic order across the NdMn2Ge2−xSix (x = 0–2.0) series by magnetometry, x-ray diffraction and neutron diffraction over the temperature range 6–465 K. On decreasing the temperature from 465 K, NdMn2Ge1.6Si0.4 exhibits four magnetic transitions: (i) from paramagnetism to intralayer antiferromagnetism AFl at TIntraN ~ 430 K; (ii) AFl to canted ferromagnetism Fmc at TInterC ~ 330 K; (iii) Fmc to conical magnetic ordering …
Study On Solidification During Twin-Roll Casting Of Magnesium Alloy, Yucheng Zhang, X Cheng, D Wei, Xiaolin Wang, Z Jiang
Study On Solidification During Twin-Roll Casting Of Magnesium Alloy, Yucheng Zhang, X Cheng, D Wei, Xiaolin Wang, Z Jiang
Faculty of Engineering - Papers (Archive)
The process of vertical twin-roll casting including pouring, solidifying, roiling and cooling can be accomplished In a very short time. Some Important process parameters In roll casting that are difficult to be obtained experimentally may be acquired by employing numerical simulation. In this paper, a numerical simulation has been conducted based on a 20 finite element model of vertical twin-roil ab1p casting coupling temperature, flow, and thermal stress. The Influences of key process parameters Including submerged nozzle depth and nozzle spray angle have been studied. The distribution of thermal stress was obtained and Its effect on the cracks In the …
Experimental Study Of High-Strength Concrete Columns Confined With Different Types Of Mesh Under Eccentric And Concentric Loads, Muhammad N. S Hadi, Hua Zhao
Experimental Study Of High-Strength Concrete Columns Confined With Different Types Of Mesh Under Eccentric And Concentric Loads, Muhammad N. S Hadi, Hua Zhao
Faculty of Engineering - Papers (Archive)
A new idea is investigated in this study to reduce the cover spalling of high-strength concrete columns: installing relatively cheap materials such as household fly screen and wire mesh in the formwork of RC columns. Three materials were chosen in this study: fiberglass fly mesh (FGFM), standard aluminum fly mesh (SAFM), and 12:7 x 12:7 galvanized steel wire mesh (S12.7 WM). A total of 16 cylindricalspecimens with a length of 925 mm and a diameter of 205 mm were cast and tested under concentric, eccentric, and pure bending loading. The testing results showed that S12.7 WM significantly improved the load-carrying …
Experimental Study On The Effectiveness Of Prefabricated Vertical Drains Under Cyclic Loading, Cholachat Rujikiatkamjorn, Buddhima Indraratna, Guanghui Meng
Experimental Study On The Effectiveness Of Prefabricated Vertical Drains Under Cyclic Loading, Cholachat Rujikiatkamjorn, Buddhima Indraratna, Guanghui Meng
Faculty of Engineering - Papers (Archive)
This study is an attempt to investigate the effectiveness of a prefabricated vertical drain (PVD) installed in remoulded soft clay, where a large-scale cyclic triaxial process simulation rig was employed to simulate cyclic loading representing a track environment. The experimental data show that PVD successfully prevents excessive accumulation of pore water pressure during cyclic loading, and their dissipation continues to occur after the load is removed. The findings of this study have direct significance to rail track environments, e.g. in coastal Australia, where PVD installation beneath rail tracks constructed on low-lying estuarine soils has been recently adopted.