Dr Damith Mohotti

Bsc, MEng, PhD
Lecturer
School of Civil Engineering

J05 - J05 Civil Engineering Building
The University of Sydney

Telephone +61 2 9351 5229
Fax +61 2 9351 3343

Website School of Civil Engineering

Biographical details

Dr. Damith Mohotti started as a Lecturer in the School of Civil Engineering in July 2015. Previously, he worked at the University of Melbourne and was engaged in many research and consultation projects including Defence Materials Technology Centre (DMTC) next generation armour applications program. He was a key member of the 2013 Defence Science and Technology Organisation Eureka Prize for Outstanding Science in Safeguarding Australia, part of the Australian Museum Eureka Prizes. He obtained his PhD in Structural Engineering in (2013), Masters in Engineering Degree in (2007) and Bachelor Degrees in Civil Engineering (2003). He was the first researcher from the department of infrastructure engineering at the University of Melbourne to submit a PhD thesis completely based on journal publications.

In addition to his academic experience, Damith has worked in the construction industry for many years as a structural design engineer and a project manager.

Research interests

The materials and methods used in the design and construction of built structures determines their capacity to withstand extreme loading, including strong winds, blasts and impacts. Designing such structures to withstand these natural and human-caused hazards, and thus protecting our critical infrastructure against them, is a particularly demanding area of today's research environment. Dr Damith Mohotti's work aims to advance this challenging and increasingly important area of structural engineering.

"Most of my research is aimed at keeping people safe and protecting them from both natural and human-caused disasters. I want to see structures withstand severe loading induced by human-caused events as well as natural disasters, so I am passionate about developing better design techniques for structures to survive under such extreme loading.

"For example, wind is a critical factor in the design of tall buildings. Current design practice uses either wind-tunnel testing or the relevant standards to obtain the necessary wind-related data. However, wind-tunnel testing is costly and time-consuming, and the guidelines included in the relevant standards are not adequate for many modern structures with their complicated geometries.

"My research therefore focuses on fluid-structure interaction (FSI), which I believe is the future of wind design for structures, and particularly for tall buildings. FSI is a computational modelling technique that can be used to replicate real-life wind flow against and around buildings to accurately predict wind-flow behaviour, pressure and acceleration in given conditions. This enables us to develop time-efficient and reliable design procedures that can sustain the kinds of conditions a structure is likely to face.

"I am also interested in other types of extreme loading on buildings, such as blasts and impact, and in ensuring that civil and defence protective structures and vehicles can be operated effectively in the face of increasing threats. I have made a significant contribution to research in vulnerability modelling of critical infrastructure, particularly in the area of assessment of the effects of natural and technical hazards on buildings and infrastructure.

"My research also extends to areas such as serviceability issues of reinforced concrete structures and the design of non-flexural members, with the aim of developing new design techniques.

"My underlying motivation is to protect our critical infrastructure in the event of disasters and other extreme events.

"I joined the University of Sydney in mid-2015. I have found that it has superior facilities and encourages its researchers to undertake high-quality work."

Current research students

Project title Research student
Studying Along wind and Cross wind Effects on Tall Buildings with the use of Computational Fluid Dynamics (CFD) Kasun WIJESOORIYA

In the media

    Selected grants

    2016

    • Impact and blast mitigation in structures using novel nano-enhanced polyurea coatings; Mohotti D, Dias-da-Costa D, Proust G; School of Civil Engineering/Civil Engineering Research Development Scheme.

    Selected publications

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    Journals

    • Remennikov, A., Ngo, T., Mohotti, D., Uy, B., Netherton, M. (2017). Experimental investigation and simplified modeling of response of steel plates subjected to close-in blast loading from spherical liquid explosive charges. International Journal of Impact Engineering, 101, 78-89. [More Information]
    • Chandima Chathuranga Somarathna, H., Raman, S., Haji Badri, K., Mutalib, A., Mohotti, D., Ravana, S. (2016). Quasi-Static Behavior of Palm-Based Elastomeric Polyurethane: For Strengthening Application of Structures under Impulsive Loadings. Polymers, 8(5), 1-20. [More Information]
    • Yang, Y., Zhou, R., Ge, Y., Mohotti, D., Mendis, P. (2015). Aerodynamic instability performance of twin box girders for long-span bridges. Journal of Wind Engineering and Industrial Aerodynamics, 145, 196-208. [More Information]
    • Mohotti, D., Ngo, T., Raman, S., Mendis, P. (2015). Analytical and numerical investigation of polyurea layered aluminium plates subjected to high velocity projectile impact. Materials and Design, 82, 1-7. [More Information]
    • Ngo, T., Mohotti, D., Remennikov, A., Uy, B. (2015). Numerical simulations of response of tubular steel beams to close-range explosions. Journal of Constructional Steel Research, 105, 151-163. [More Information]
    • Zhou, R., Yang, Y., Ge, Y., Mendis, P., Mohotti, D. (2015). Practical countermeasures for the aerodynamic performance of long-span cable-stayed bridges with open decks. Wind and Structures, 21(2), 223-239. [More Information]
    • Mohotti, D., Raman, S., Ngo, T., Mendis, P. (2015). Use of Coupled Smooth-Particle Hydrodynamics/Lagrangian Method in the Simulation of Deformable Projectile Penetration. International Journal of Protective Structures, 6(3), 419-437. [More Information]
    • Mohotti, D., Ngo, T., Mendis, P. (2014). Comparison of two aluminium alloys for their energy absorption capacity under high strain rate dynamic loading. International Journal of Aerospace and Lightweight Structures (IJALS), 4(1), 1-16. [More Information]
    • Mohotti, D., Ngo, T., Raman, S., Ali, M., Mendis, P. (2014). Plastic deformation of polyurea coated composite aluminium plates subjected to low velocity impact. Materials and Design, 56, 696-713. [More Information]
    • Mohotti, D., Ali, M., Ngo, T., Lu, J., Mendis, P. (2014). Strain Rate Dependent Constitutive Model for Predicting the Material Behaviour of Polyurea under High Strain Rate Tensile Loading. Materials and Design, 53, 830-837. [More Information]
    • Mohotti, D., Ali, M., Ngo, T., Lu, J., Mendis, P., Ruan, D. (2013). Out-of-plane impact resistance of aluminium plates subjected to low velocity impacts. Materials and Design, 50, 413-426. [More Information]
    • Mohotti, D., Ngo, T., Mendis, P., Raman, S. (2013). Polyurea coated composite aluminium plates subjected to high velocity projectile impact. Materials and Design, 52, 1-16. [More Information]

    Conferences

    • Mohotti, D., Mendis, P., Ngo, T. (2014). Application of Computational Fluid Dynamics (CFD) in Predicting the Wind Loads on Tall Buildings- A Case Study. 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), Lismore, NSW: Southern Cross University.
    • Ngo, T., Mohotti, D., Remmenikov, A., Uy, B. (2014). Response and Failure mechanism of Tubular Steel Columns Subjected to Close-Range Explosions. 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), Lismore, NSW: Southern Cross University.
    • Mendis, P., Mohotti, D., Ngo, T. (2014). Wind Design of Tall Buildings, Problems, Mistakes and Solutions. 1st International Conference on Infrastructure Failures and Consequences (ICIFC), online: RMIT University.
    • Mohotti, D., Mendis, P., Ngo, T. (2013). Application of Computational Fluid Dynamics (CFD) In Wind Analysis of Tall Buildings. 4th International Conference on Structural Engineering and Construction Management 2013 (ICSECM 2013), Sri Lanka: University of Peradeniya.
    • Mohotti, D., Ngo, T., Mendis, P. (2011). Numerical simulation of impact and penetration of ogvial shaped projectiles through steel plate structures. 2011 International Conference on Structural Engineering Construction and Management (ICSECM 2011), Kandy: University of Peradeniya.
    • Mohotti, D., Lunmantara, R., Ngo, T., Mendis, P. (2010). Improving the safety of buildings through an innovative sustainable facade system. International Conference on Sustainable Built Environment 2010 (ICSBE 2010).

    2017

    • Remennikov, A., Ngo, T., Mohotti, D., Uy, B., Netherton, M. (2017). Experimental investigation and simplified modeling of response of steel plates subjected to close-in blast loading from spherical liquid explosive charges. International Journal of Impact Engineering, 101, 78-89. [More Information]

    2016

    • Chandima Chathuranga Somarathna, H., Raman, S., Haji Badri, K., Mutalib, A., Mohotti, D., Ravana, S. (2016). Quasi-Static Behavior of Palm-Based Elastomeric Polyurethane: For Strengthening Application of Structures under Impulsive Loadings. Polymers, 8(5), 1-20. [More Information]

    2015

    • Yang, Y., Zhou, R., Ge, Y., Mohotti, D., Mendis, P. (2015). Aerodynamic instability performance of twin box girders for long-span bridges. Journal of Wind Engineering and Industrial Aerodynamics, 145, 196-208. [More Information]
    • Mohotti, D., Ngo, T., Raman, S., Mendis, P. (2015). Analytical and numerical investigation of polyurea layered aluminium plates subjected to high velocity projectile impact. Materials and Design, 82, 1-7. [More Information]
    • Ngo, T., Mohotti, D., Remennikov, A., Uy, B. (2015). Numerical simulations of response of tubular steel beams to close-range explosions. Journal of Constructional Steel Research, 105, 151-163. [More Information]
    • Zhou, R., Yang, Y., Ge, Y., Mendis, P., Mohotti, D. (2015). Practical countermeasures for the aerodynamic performance of long-span cable-stayed bridges with open decks. Wind and Structures, 21(2), 223-239. [More Information]
    • Mohotti, D., Raman, S., Ngo, T., Mendis, P. (2015). Use of Coupled Smooth-Particle Hydrodynamics/Lagrangian Method in the Simulation of Deformable Projectile Penetration. International Journal of Protective Structures, 6(3), 419-437. [More Information]

    2014

    • Mohotti, D., Mendis, P., Ngo, T. (2014). Application of Computational Fluid Dynamics (CFD) in Predicting the Wind Loads on Tall Buildings- A Case Study. 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), Lismore, NSW: Southern Cross University.
    • Mohotti, D., Ngo, T., Mendis, P. (2014). Comparison of two aluminium alloys for their energy absorption capacity under high strain rate dynamic loading. International Journal of Aerospace and Lightweight Structures (IJALS), 4(1), 1-16. [More Information]
    • Mohotti, D., Ngo, T., Raman, S., Ali, M., Mendis, P. (2014). Plastic deformation of polyurea coated composite aluminium plates subjected to low velocity impact. Materials and Design, 56, 696-713. [More Information]
    • Ngo, T., Mohotti, D., Remmenikov, A., Uy, B. (2014). Response and Failure mechanism of Tubular Steel Columns Subjected to Close-Range Explosions. 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), Lismore, NSW: Southern Cross University.
    • Mohotti, D., Ali, M., Ngo, T., Lu, J., Mendis, P. (2014). Strain Rate Dependent Constitutive Model for Predicting the Material Behaviour of Polyurea under High Strain Rate Tensile Loading. Materials and Design, 53, 830-837. [More Information]
    • Mendis, P., Mohotti, D., Ngo, T. (2014). Wind Design of Tall Buildings, Problems, Mistakes and Solutions. 1st International Conference on Infrastructure Failures and Consequences (ICIFC), online: RMIT University.

    2013

    • Mohotti, D., Mendis, P., Ngo, T. (2013). Application of Computational Fluid Dynamics (CFD) In Wind Analysis of Tall Buildings. 4th International Conference on Structural Engineering and Construction Management 2013 (ICSECM 2013), Sri Lanka: University of Peradeniya.
    • Mohotti, D., Ali, M., Ngo, T., Lu, J., Mendis, P., Ruan, D. (2013). Out-of-plane impact resistance of aluminium plates subjected to low velocity impacts. Materials and Design, 50, 413-426. [More Information]
    • Mohotti, D., Ngo, T., Mendis, P., Raman, S. (2013). Polyurea coated composite aluminium plates subjected to high velocity projectile impact. Materials and Design, 52, 1-16. [More Information]

    2011

    • Mohotti, D., Ngo, T., Mendis, P. (2011). Numerical simulation of impact and penetration of ogvial shaped projectiles through steel plate structures. 2011 International Conference on Structural Engineering Construction and Management (ICSECM 2011), Kandy: University of Peradeniya.

    2010

    • Mohotti, D., Lunmantara, R., Ngo, T., Mendis, P. (2010). Improving the safety of buildings through an innovative sustainable facade system. International Conference on Sustainable Built Environment 2010 (ICSBE 2010).

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