B.Sc.Eng. Hons (Moratuwa), Ph.D. (Cambridge)

Senior Lecturer - Grade II, Department of Civil Engineering,
University of Moratuwa,Moratuwa.

e mail: yasithcm@uom.lk

Telephone: +94-11-2650567-8(Ext.2108)

Fax:  +94-11-2651216

       Education
       Honors and Awards
       Career Objective
       Research Experience
       Teaching Experience
       Professional Experience
       Professional Experience
       Journal Publications

       Conference Proceedings and Invited Talks
       Featured Articles 
     

Education

• Doctor of Philosophy (Ph.D.)                                                                                          2006 - 2011
  Department of Engineering
  University of Cambridge, UK
  Thesis advisor: Prof. Sergio Pellegrino
  Thesis topic: “Thin-walled composite deployable booms with tape-spring hinges”

• Bachelor of Science in Engineering (B.Sc. Eng. Hons. first class)                                    2001 - 2005
  Department of Civil Engineering
  University of Moratuwa, Sri Lanka

• Associate Diploma in Information Technology                                                                2001 - 2002
  Sri Lanka Institute of Information Technology, Sri Lanka

Back to top

Honors and Awards

• Graduate Research Assistant fellowship, 2008 - 2011, California Institute of Technology,
  USA.
• Cambridge Commonwealth Trust fellowship 2006 - 2009, University of Cambridge, UK.
  

Back to top

Research Interest

Deployable structures, fibre reinforced polymer composites, micro-mechanical modelling, struc-
tural dynamics, design optimization

Back to top

• California Institute of Technology, USA
  Postdoctoral Scholar                                                                                                               2011 - 2012
  Graduate Research Assistant                                                                                                   2008 - 2011
  in the Space Structures Laboratory at Graduate Aerospace Laboratories.
  Developed a modelling technique to predict the behaviour of creased membranes to be
  used for solar sails as a part of Surrey Space Centers deOrbitSAIL mission.
  Developed a six dimensional failure criterion for symmetric two-ply plain weave carbon
  fibre reinforced polymer (CFRP) laminates. Established a design methodology for tubular
  booms with multiple tape-spring hinges.

• University of Cambridge, UK                                                                                                   2006 - 2008
  Graduate Research Assistant in the Deployable Structures Laboratory at the department
  of engineering.
  Developed manufacturing and fabrication techniques to construct thin-walled CFRP com-
  posite booms. Developed simulation technique to accurately capture both quasi-static and
  dynamic deployment behaviour of tape-spring hinges.

• University of Moratuwa, Sri Lanka                                                                                          2005 - 2006
  Graduate research assistant in the department of civil engineering.
  Researched on Load and Resistance Models to study effects of tsunami waves on buildings
  with a view to formulate guide lines for constructing low cost buildings in the coastal
  region.

• Caltech Undergraduate Microgravity Research Group
  Guided five undergraduates who got selected for NASA’s reduced gravity education flight
  program to test deployable booms in the reduced gravity aircraft, 2010 - 2011.

• Teaching Assistant
  – Mechanics of Composite Materials and Structures, 2008 - 2009, California Institute
  of Technology.
  – Mechanical CAD CAM project, 2007 - 2008. University of Cambridge.
  – Analysis of Structures, Computer Analysis of Structures, 2005 - 2006. University of
  Moratuwa.

Back to top

Back to top

• H.M.Y.C. Mallikarachchi (2011), “Lightweight Deployable Booms for Space Applications”,
  Proceedings of the Inaugural Annual Sessions of Society of Structural Engineers - Sri
  Lanka, Colombo, Sri Lanka, 22 November 2011.
• H.M.Y.C. Mallikarachchi and S. Pellegrino (2011), “Design and validation of thin-walled
  composite deployable booms with tape-spring hinges”, 52nd AIAA/ASME/ASCE/AHS/
  ASC Structures, Structural Dynamics, and Materials Conference, AIAA-2011-2019, Den-
  ver, Colorado, 4-7 April 2011.
• H.M.Y.C. Mallikarachchi and S. Pellegrino (2010), “Optimized designs of composite booms
  with integral tape-spring hinges”, 51st AIAA/ASME/ASCE/AHS/ASC Structures, Struc-
  tural Dynamics, and Materials Conference, AIAA-2010-2750, Orlando, Florida, 12-15 April
  2010.
• H.M.Y.C. Mallikarachchi (2010), “Deployable carbon-fiber composite booms”. James K.
  Knowles Lecture and Caltech Solid Mechanics Symposium, Pasadena, California, 27 Febru-
  ary 2010.
• H.M.Y.C. Mallikarachchi and S. Pellegrino (2009), “Folding and deployment of ultra-thin
  composite structures.”, Proceedings of International Scientific Conference on Advanced
  Lightweight Structures and Reflector Antennas, Institute of Constructions, Special Systems
  and Engineering Maintenance of the Georgian Technical University, pp. 48-57, Tbilisi,
  Georgia, 14-16 October 2009.
• H.M.Y.C. Mallikarachchi and S. Pellegrino (2009), “Deployment dynamics of compos-
  ite booms with integral slotted hinges”, 50th AIAA/ASME/ASCE/AHS/ASC Structures,
  Structural Dynamics, and Materials Conference, AIAA-2009-2631, Palm Springs, Califor-
  nia, 4-7 May 2009.
• H.M.Y.C. Mallikarachchi and S. Pellegrino (2008), “Simulation of quasi-static folding
  and deployment of ultra-thin composite structures”, 49th AIAA/ASME/ASCE/AHS/ASC
  Structures, Structural Dynamics, and Materials Conference, AIAA-2008-2053, Schaum-
  burg, Illinois, 7-10 April 2008.
• W.P.S. Dias and H.M.Y.C. Mallikarachchi (2006), “Tsunami - planning and design for
  disaster mitigation”, Proceedings of The Structural Engineer, Vol. 84, 6 June 2006, pp.
  25-29.

Featured Article

1. “Stow-and-go for space travel”, Realistic Simulation News - Dassault Syst`emes, Febru-
   ary/March 2012.
2. “Customer Applications of Realistic Simulation”, Dassault Syst`emes Simulia Calendar,
   2012.
3. “Self-deployable, composite satellite boom”, High-Performance Composites, November
   2011.
4. “Stow-and-go for space travel”, featured in design engineering publications: Advance Ma-
   terials and Processes, Aerospace Manufacturing and Design, American Manufacturing,
   Design World, Designfax, Desktop Engineering and Product Design and Development,
   September - November 2011.

Back to top

Graduate Course Work

1. Designing with Composites
2. Continuum Mechanics
3. Plates and Shells: Theory and Computation
4. Computational Solid Mechanics

Back to top