Ngo, Trung Dr

Research Fellow

  • School of Civil, Mining & Environmental Engineering
  • Faculty of Engineering and Information Sciences
  • Research Fellow - University of Wollongong 2013 - 2021

Top Publications


Research Overview


  • Dr Ngoc Trung Ngo is a Research Fellow at the University of Wollongong where he works in the area of Geotechnical Engineering, Railway Transportation and Ground Improvement using stone columns. His research interest is on the area of computational geotechnics; ballasted rail tracks and computational modelling using Discrete Element Method (DEM); coupled discrete-continuum modelling (coupled DEM-FEM). Dr Ngo is a member of the Centre of Geomechanics and Railway Engineering, University of Wollongong (http://eis.uow.edu.au/gre/index.html).

Available as Research Supervisor

Selected Publications


Impact Story


  • <p>My research has primarily focused on the area of railway track design specifically in computational modelling and laboratory testing for ballasted rail tracks. My PhD research was on the computational modelling of ballasted tracks using the Discrete Element Method (DEM) validated by extensive experimental tests to evaluate the performance of contaminated (fouled) ballast and to rejuvenate its mechanical behaviour using geogrids. In 2013, my doctoral research was acknowledged by Railway Technical Society of Australasia (RTSA) and I was honoured by RTSA Postgraduate Thesis Award, which is awarded once in 3 years recognising “<em><u>contributions to rail industry in transferring the results of advanced computational, theoretical, and laboratory research into professional engineering practices</u></em>”. In addition, the SCI journal paper “Behaviour of fresh and fouled railway ballast subjected to direct shear testing – A discrete element simulation”, in which I published during my PhD study, has been evaluated as <u>the most cited articles, Top 4,  during the past three years by ASCE-International Journal of Geomechanics</u> (<em>http://ascelibrary.org/action/showMostCitedArticles?journalCode=ijgnai</em>).</p><p> After completing my PhD, I expanded the scope of my research to other branches of rail geotechnics including the stabilisation of sub-ballast using geocells, and ground improvement using stone where the research involved in conducting laboratory tests and computational modelling using Finite Difference Method (FDM). I also contributed to the emerging research field of advanced computational modelling by developing a novel coupled discrete-continuum approach (coupled DEM-FDM). I conducted this research in collaboration with Laureate Professor Scott Sloan, the Director of ARC-CGSE, who is an internationally renowned expert in computational geomechanics. I formulated a conceptual mathematical framework and subroutines to establish the interaction between the discrete and continuum media. <em><u>The impact of this</u></em> <em><u>mathematical framework is to combine the discrete and continuum domains together; and it can be potentially used to solve the interface issues of various other geotechnical challenges in soil-structure interaction problems or granular material subject to cyclic loading</u></em>. This coupled DEM-FDM model is a breakthrough that bridges the gap between the discrete and continuum approach where interface issues between two varied domains can be solved. Future track design will be substantially improved through new knowledge gained by large-scale cyclic testing and micro-macro numerical modelling to be developed.</p><p>My contribution to the research field is also demonstrated through a significant number of publications in a variety of top-ranked peer-reviewed geotechnical journals. The international SCI journal paper, “DEM simulation of the behaviour of geogrid stabilised ballast fouled with coal” published in "Computers and Geotechnics", has been <u>evaluated as the most cited articles published since 2012</u> (<em>https://www.journals.elsevier.com/computers-and-geotechnics/most-cited-articles</em>). I consider this achievement is a strong evidence of the broad impact of my research.</p><p>I have been involved regularly as a Reviewer for a number of scholarly journals, including: Journal of Computing in Civil Engineering, Canadian Geotechnical Journal, Geotechnical and Geoenvironmental Engineering (ASCE), International Journal of Geomechanics (ASCE); Geotechnique Letters, Geotextiles and Geomembranes, Geotechnical Testing Journal (ASTM), Transportation Geotechnics (Elsevier), and Geosynthetics International (<a href="https://publons.com/author/1288380/ngoc-trung-ngo#profile" target="_blank" rel="noopener">https://publons.com/author/1288380/ngoc-trung-ngo#profile</a>)</p>

Available as Research Supervisor

Advisees


  • Graduate Advising Relationship

    Degree Research Title Advisee
    Doctor of Philosophy Modelling Transition Zones and Optimal Design Adjoining Tunnels and Bridges Sajjad, BABAR
    Doctor of Philosophy Heavy Haul Railroad Design Upgrading Based On Fundamental Track Dynamics Tucho, Ameyu

Reviewer Of


Full Name


  • Ngoc Trung Ngo

Mailing Address


  • Center for Geomechanic and Railway Engineering, Room 109, Building 4

    University of Wollongong

    NSW

    2522

    Australia

Web Of Science Researcher Id


  • C-9980-2014

Top Publications


Research Overview


  • Dr Ngoc Trung Ngo is a Research Fellow at the University of Wollongong where he works in the area of Geotechnical Engineering, Railway Transportation and Ground Improvement using stone columns. His research interest is on the area of computational geotechnics; ballasted rail tracks and computational modelling using Discrete Element Method (DEM); coupled discrete-continuum modelling (coupled DEM-FEM). Dr Ngo is a member of the Centre of Geomechanics and Railway Engineering, University of Wollongong (http://eis.uow.edu.au/gre/index.html).

Selected Publications


Impact Story


  • <p>My research has primarily focused on the area of railway track design specifically in computational modelling and laboratory testing for ballasted rail tracks. My PhD research was on the computational modelling of ballasted tracks using the Discrete Element Method (DEM) validated by extensive experimental tests to evaluate the performance of contaminated (fouled) ballast and to rejuvenate its mechanical behaviour using geogrids. In 2013, my doctoral research was acknowledged by Railway Technical Society of Australasia (RTSA) and I was honoured by RTSA Postgraduate Thesis Award, which is awarded once in 3 years recognising “<em><u>contributions to rail industry in transferring the results of advanced computational, theoretical, and laboratory research into professional engineering practices</u></em>”. In addition, the SCI journal paper “Behaviour of fresh and fouled railway ballast subjected to direct shear testing – A discrete element simulation”, in which I published during my PhD study, has been evaluated as <u>the most cited articles, Top 4,  during the past three years by ASCE-International Journal of Geomechanics</u> (<em>http://ascelibrary.org/action/showMostCitedArticles?journalCode=ijgnai</em>).</p><p> After completing my PhD, I expanded the scope of my research to other branches of rail geotechnics including the stabilisation of sub-ballast using geocells, and ground improvement using stone where the research involved in conducting laboratory tests and computational modelling using Finite Difference Method (FDM). I also contributed to the emerging research field of advanced computational modelling by developing a novel coupled discrete-continuum approach (coupled DEM-FDM). I conducted this research in collaboration with Laureate Professor Scott Sloan, the Director of ARC-CGSE, who is an internationally renowned expert in computational geomechanics. I formulated a conceptual mathematical framework and subroutines to establish the interaction between the discrete and continuum media. <em><u>The impact of this</u></em> <em><u>mathematical framework is to combine the discrete and continuum domains together; and it can be potentially used to solve the interface issues of various other geotechnical challenges in soil-structure interaction problems or granular material subject to cyclic loading</u></em>. This coupled DEM-FDM model is a breakthrough that bridges the gap between the discrete and continuum approach where interface issues between two varied domains can be solved. Future track design will be substantially improved through new knowledge gained by large-scale cyclic testing and micro-macro numerical modelling to be developed.</p><p>My contribution to the research field is also demonstrated through a significant number of publications in a variety of top-ranked peer-reviewed geotechnical journals. The international SCI journal paper, “DEM simulation of the behaviour of geogrid stabilised ballast fouled with coal” published in "Computers and Geotechnics", has been <u>evaluated as the most cited articles published since 2012</u> (<em>https://www.journals.elsevier.com/computers-and-geotechnics/most-cited-articles</em>). I consider this achievement is a strong evidence of the broad impact of my research.</p><p>I have been involved regularly as a Reviewer for a number of scholarly journals, including: Journal of Computing in Civil Engineering, Canadian Geotechnical Journal, Geotechnical and Geoenvironmental Engineering (ASCE), International Journal of Geomechanics (ASCE); Geotechnique Letters, Geotextiles and Geomembranes, Geotechnical Testing Journal (ASTM), Transportation Geotechnics (Elsevier), and Geosynthetics International (<a href="https://publons.com/author/1288380/ngoc-trung-ngo#profile" target="_blank" rel="noopener">https://publons.com/author/1288380/ngoc-trung-ngo#profile</a>)</p>

Advisees


  • Graduate Advising Relationship

    Degree Research Title Advisee
    Doctor of Philosophy Modelling Transition Zones and Optimal Design Adjoining Tunnels and Bridges Sajjad, BABAR
    Doctor of Philosophy Heavy Haul Railroad Design Upgrading Based On Fundamental Track Dynamics Tucho, Ameyu

Reviewer Of


Full Name


  • Ngoc Trung Ngo

Mailing Address


  • Center for Geomechanic and Railway Engineering, Room 109, Building 4

    University of Wollongong

    NSW

    2522

    Australia

Web Of Science Researcher Id


  • C-9980-2014

Geographic Focus