Dr Damith Mohotti

Bsc (Hons in Civil Engineering), MEng (Structural Engineering), PhD (Structural Engineering, University of Melbourne, Australia)

Lecturer in 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, University of Sydney 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 Prize awards. Dr Damith Mohotti was awarded the Engineering Excellence Award for presenting the best publication within last five years by the Institution of Engineers Sri Lanka (NSW Chapter) (IESL NSW) in year 2017. He was the first researcher in the long history of 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.

"I am interested in investigating extreme loading on structures, 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 other infrastructure.

"I am also interested in investigating how the wind interacts with different structures especially with buildings. Wind loading 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.

"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."

Teaching and supervision

CIVL3205/9205 – Concrete Structures 1
CIVL5269 – Advanced Concrete Structures
CIVL6257 – Prestressed Concrete

Current research students

Project title Research student
Multi-material system to resist blast loads Lakshitha Fernando FERNANDO
Studying Along wind and Cross wind Effects on Tall Buildings with the use of Computational Fluid Dynamics (CFD) Kasun WIJESOORIYA
Analysis of wind behavior around small to medium rise structure Fengda XING
Development of Multi-Scale Numerical Modelling Techniques to Analyse Structures Under Blast Loading Amir ZAGHLOUL

Associations

  • Member of International Association of Protective Structures
  • Member of Engineers Australia

In the media


    International collaboration

      Selected grants

      2017

      • Development of blast resilient glass facades; Paththini Marakkala M, Mohotti D.

      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

      Download citations: PDF RTF Endnote

      Journals

      • Xing, F., Mohotti, D., Chauhan, K. (2018). Experimental and numerical study on mean pressure distributions around an isolated gable roof building with and without openings. Building and Environment, 132, 30-44. [More Information]
      • 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

      • Wijesooriya, K., Mohotti, D. (2017). A validated numerical approach in wind design of supper tall buildings. 8th International Conference on Structural Engineering and Construction Management (ICSECM 2017), Sri Lanka.
      • Fernando, P., Mohotti, D., Remennikov, A., Uy, B. (2017). Continuous Impedance-Graded Metallic Composite System for Shock Mitigation. 6th International Conference on Design and Analysis of Protective Structures (DAPS 2017), Melbourne.
      • Mohotti, D. (2017). Effective use of steel composites in blast and impact load damage mitigation. 4th World Congress and Exhibition on Construction & Steel Structure, USA.
      • Fernando, P., Zaghloul, A., Mohotti, D. (2017). Experimental and numerical investigation of possible head damages due to the impact of a cricket ball. 8th International Conference on Structural Engineering and Construction Management (ICSECM 2017), Sri Lanka.
      • Fernando, P., Mohotti, D., Zaghloul, A. (2017). Mitigation of Possible Head Damages due to the Impact of a Cricket Ball. 9TH Australasian Congress on Applied Mechanics (ACAM9), Australia: Engineers Australia.
      • Mohotti, D., Razzaque, R., Fernando, P., Dias-da-Costa, D. (2017). Numerical and analytical investigation of load transfer through eccentric columns with different cross sections. 28th Biennial National Conference of the Concrete Institute of Australia, Australia.
      • Mohotti, D. (2017). Use of polyurea as a protective coating: New applications of polymers in damage mitigation. International Conference on Oil, Gas and Petrochemistry, UAE.
      • Remennikov, A., Ngo, T., Mohotti, D., Uy, B. (2015). Experimental Investigation of Response of Steel Plates due to Close-in Blast Loading from Spherical Liquid Explosive. 5th International Conference on Design and Analysis of Protective Structures (DAPS2015), Singapore.
      • Mohotti, D., Ngo, T., Mendis, P. (2015). Use of Multi-layered Composite Plate Systems in Ballistic Impact Mitigation. International Conference Protective Structures (ICPS 3), Australia.
      • Ngo, T., Mohotti, D., Remennikov, A. (2015). Use of polyurea-auxetic composite system for protecting structures from close-in detonations. International Conference Protective Structures (ICPS 3), Australia.
      • Mohotti, D., Danushka, K., Mendis, P. (2015). Wind Design of Slender Tall Buildings: CFD Approach. 6th International Conference on Structural Engineering and Construction Management, Sri Lanka.
      • 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).

      Report

      • Mohotti, D., Yang, E., Ngo, T., Mendis, P. (2015). Stress Triaxiality on Steel and Aluminium Specimens to Derive Johnson-Cook Constitutive and Fracture Model Parameters.
      • Mohotti, D., Ngo, T., Mendis, P. (2012). High strain rate tests.

      2018

      • Xing, F., Mohotti, D., Chauhan, K. (2018). Experimental and numerical study on mean pressure distributions around an isolated gable roof building with and without openings. Building and Environment, 132, 30-44. [More Information]

      2017

      • Wijesooriya, K., Mohotti, D. (2017). A validated numerical approach in wind design of supper tall buildings. 8th International Conference on Structural Engineering and Construction Management (ICSECM 2017), Sri Lanka.
      • Fernando, P., Mohotti, D., Remennikov, A., Uy, B. (2017). Continuous Impedance-Graded Metallic Composite System for Shock Mitigation. 6th International Conference on Design and Analysis of Protective Structures (DAPS 2017), Melbourne.
      • Mohotti, D. (2017). Effective use of steel composites in blast and impact load damage mitigation. 4th World Congress and Exhibition on Construction & Steel Structure, USA.
      • Fernando, P., Zaghloul, A., Mohotti, D. (2017). Experimental and numerical investigation of possible head damages due to the impact of a cricket ball. 8th International Conference on Structural Engineering and Construction Management (ICSECM 2017), Sri Lanka.
      • 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]
      • Fernando, P., Mohotti, D., Zaghloul, A. (2017). Mitigation of Possible Head Damages due to the Impact of a Cricket Ball. 9TH Australasian Congress on Applied Mechanics (ACAM9), Australia: Engineers Australia.
      • Mohotti, D., Razzaque, R., Fernando, P., Dias-da-Costa, D. (2017). Numerical and analytical investigation of load transfer through eccentric columns with different cross sections. 28th Biennial National Conference of the Concrete Institute of Australia, Australia.
      • Mohotti, D. (2017). Use of polyurea as a protective coating: New applications of polymers in damage mitigation. International Conference on Oil, Gas and Petrochemistry, UAE.

      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]
      • Remennikov, A., Ngo, T., Mohotti, D., Uy, B. (2015). Experimental Investigation of Response of Steel Plates due to Close-in Blast Loading from Spherical Liquid Explosive. 5th International Conference on Design and Analysis of Protective Structures (DAPS2015), Singapore.
      • 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., Yang, E., Ngo, T., Mendis, P. (2015). Stress Triaxiality on Steel and Aluminium Specimens to Derive Johnson-Cook Constitutive and Fracture Model Parameters.
      • 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. (2015). Use of Multi-layered Composite Plate Systems in Ballistic Impact Mitigation. International Conference Protective Structures (ICPS 3), Australia.
      • Ngo, T., Mohotti, D., Remennikov, A. (2015). Use of polyurea-auxetic composite system for protecting structures from close-in detonations. International Conference Protective Structures (ICPS 3), Australia.
      • Mohotti, D., Danushka, K., Mendis, P. (2015). Wind Design of Slender Tall Buildings: CFD Approach. 6th International Conference on Structural Engineering and Construction Management, Sri Lanka.

      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]

      2012

      • Mohotti, D., Ngo, T., Mendis, P. (2012). High strain rate tests.

      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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