Chairman – 3rd International Symposium on Impact Engineering, 7-9 Dec 1998, Singapore.
Forum Co-Chair – IFSEEM 2016, 2nd International Forum on Specialized Equipment and Engineering Mechanics, July 27-28, 2016, Nanjing, China.
Co-Chair, Session on Dynamic Plasticity of Structures, ICTAM2000, 20th International Congress of Theoretical and Applied Mechanics, Aug 27 – Sep 2, 2000, Chicago, USA.
Co-Chair, Symposium on Composites and Nanocomposites, ICMAT 2011, International Conference on Materials for Advanced Technologies, 26 June – 1 July 2011, Suntec, Singapore.
Scientific Committee member – ICILSM 2024, 4th International Conference on Impact Loading of Structures and Materials, 13-17 May, 2024, Freiburg, Germany.
International Scientific Committee member – ISIE 2023, 11th International Symposium on Impact Engineering, December 3-5, 2023, Perth, Australia.
International Scientific Committee member – IMPLAST 2022, 13th International Symposium on Plasticity and Impact Mechanics, August 21-26, 2022, IIT Madras, India.
International Scientific Committee member – ICILSM 2022, 3rd International Conference on Impact Loading of Structures and Materials, 13-17 June, 2022, Trondheim, Norway.
International Organizing Committee member – ACMFMS 2020+1, The 7th Asian Conference on Mechanics of Functional Materials and Structures, March 13-15, 2021, Sendai, Japan.
Scientific Committee member – DYMAT Winter School 2020, 9-14 Feb 2020, Les Houches, France.
International Scientific Committee member – IMPLAST-2019, The 12th International Symposium on Plasticity and Impact Mechanics, 29 Sep – 3 Oct 2019, Busan, Korea.
Scientific Committee member – ISIE 2019, International Symposium on Impact Engineering 2019, 2-5 July, Gmunden, Austria.
International Scientific Committee member – ESHP 2019, Sixth International Symposium on Explosion, Shock wave and High-strain rate Phenomena, 19-21 March 2019, Puducherry, India.
International Organizing Committee member – ACMFMS 2018, The 6th Asian Conference on Mechanics of Functional Materials and Structures, October 26-29 2018, Tainan, Taiwan.
Scientific Advisory Committee member – ICDT 2018, First International Conference on Defence Technology, October 21-25 2018, Beijing, China.
International Scientific Committee member – ICILSM 2018, 2nd International Conference on Impact Loading of Structures and Materials, 7-11 May 2018, Xi’an, China.
Scientific Committee member – IMPLAST 2016, 11th International Symposium on Plasticity and Impact Mechanics, December 11 – 14, 2016, Delhi, India.
Scientific Committee member – 22nd DYMAT Technical Meeting on “Experimental testing and modelling of brittle materials at high strain-rates”, October 19-21, 2016, Grenoble, France.
International Organizing Committee member – ACMFMS 2016, 5th Asian Conference on Mechanics of Functional Materials and Structures, October 14-17, Shanghai, China.
International Advisory Committee member – EHSP 2016, Fifth International Symposium on Explosion, Shock wave and High-strain-rate Phenomena, 25-28 September, 2016, Beijing, China.
International Advisory Committee member – ISIE 2016, 9th International Symposium on Impact Engineering, September 5-9, National Cheng Kung University, Tainan, Taiwan.
International Scientific Committee member – ICILSM 2016, 1st International Conference on Impact Loading of Structures and Materials, 22-26 May 2016, Turin, Italy.
International Advisory Committee member – 2014 SEM Fall Conference and International Symposium on Intensive Loading and Its Effects, 19-22 October 2014, Beijing, China.
Local Organizing Committee member – IWCMM 2013, 23rd International Workshop on Computational Modeling of Materials, October 2-4, 2013, Temasek Laboratories @ NUS, Singapore.
International Organizing Committee member – ACMFMS 2014, The Fourth Asian Conference on Mechanics of Functional Materials and Structures, October 10-13, 2014 Nara, Japan.
International Scientific Committee member – ICILLS 2014, 4th International Conference on Lightweight Structures, 12th-16th January 2014, Cape Town, South Africa.
International Advisory Board member – ISIE 2013, 8th International Symposium on Impact Engineering, September 2-6 2013, Osaka University, Japan.
International Organizing Committee member – ACMFMS 2012, Third Asian Conference on Mechanics of Functional Materials and Structures, 8-12 Dec 2012, Indian Institute of Technology Delhi, New Delhi, India.
Scientific Committee member – ICILLS 2011, 3rd International Conference on Impact Loading of Lightweight Structures, 28 June – 1 July, 2011, Valenciennes, France.
International Advisory Panel member – 6th Australasian Congress on Applied Mechanics (ACAM 6), 12-15 December 2010, Perth Convention Centre, Perth, Western Australia.
International Organizing Committee member – ACMFMS 2010 – Second Asian Conference on Mechanics of Functional Materials and Structures, October 22-25, 2010, Nanjing, China.
Scientific Committee member – IMPLAST 2010 Symposium on Plasticity and Impact Mechanics, October 12-14 2010, Renaissance Hotel, Providence, RI (USA).
International Advisory Board member – Seventh International Symposium on Impact Engineering (ISIE2010), 4-7 July 2010, Sofitel Victoria Hotel, Warsaw, Poland.
International Technical Committee member – SIF 2010 – International Conference on Structural Integrity and Failure, July 4-7, 2010, Auckland, New Zealand.
International Advisory Board member – FEOFS 2010, 8th International Conference on Fracture and Strength of Solids, 7-9 June 2010, Istana Hotel, Kuala Lumpur, Malaysia.
Regional Program Committee member – Regional Conference on Mechanical and Aerospace Technology, 9-10 February 2010, Inna Grand Beach Hotel Sanur, Bali, Indonesia.
International Organizing Committee member – ACMFMS 2008, Asian Conference on Mechanics of Functional Materials and Structures, Oct 31 – Nov 3 2008, Matsue, Japan.
International Scientific Advisory Committee member – Impact Loading of Lightweight Structures, 17-19 June 2008, Norwegian University of Science and Technology, Trondheim, Norway.
International Advisory Board member – ISIE 2007, 6th International Symposium on Impact Engineering, 16-19 Sep 2007, Daejeon, Korea.
Scientific Committee member – IMPLAST 2007, 9th International Symposium on Plasticity and Impact Mechanics, 21 – 24 August 2007, Ruhr-University Bochum (Germany).
International Organizing Committee member – M&P 2005 – 2nd JSME/ASME International Conference on Materials and Processing 2005, 19-22 June 2005, Crowne Plaza Hotel, Seattle, Washington, USA.
International Advisory Board member – NAE2005, 4th International Conference on Numerical Analysis in Engineering, 27-28 May 2005, Yogyakarta, Indonesia.
International Advisory Committee member – ISIE/5, 5th International Symposium on Impact Engineering 2004, 11–15 July 2004, Churchill College, University of Cambridge, Cambridge, UK.
International Advisory Committee member – IMPLAST’03, 8th International Symposium on Plasticity and Impact Mechanics, 16–19 March 2003, Indian Institute of Technology, Delhi, India.
International Advisory Board member – NAE2003, 3rd International Conference on Numerical Analysis in Engineering, 13-15 March 2003, Batam, Indonesia.
International Executive Committee member – JSME/ASME International Conference on Materials and Processing 2002, Oct 15-18 2002, Honolulu, Hawaii, USA.
International Program Committee member – ETM 2002 (Experimental and Theoretical Mechanics 2002), 18-19 March 2002, Bali, Indonesia.
International Advisory Panel member – 4th International Symposium on Impact Engineering, July 16-18 2001, Kumamoto, Japan.
International Steering Committee member – NAE2001, 2nd International Seminar on Numerical Analysis in Engineering, 14-15 March 2001, Batam, Indonesia.
Organizing Committee member – 2nd International Conference On Experimental Mechanics, 29 Nov – 1Dec 2000, Singapore.
Organizing Committee member – Experimental Mechanics: Advances and Applications, 4-6 Dec 1996, Singapore.