School of Mechanical and Aerospace Engineering 

Sridhar IDAPALAPATI
                BTech., MTech., PhD 
Assistant Professor

Office: N3.2-02-32
Tel: +65 - 6790 4784 
Email: msridhar@ntu.edu.sg

 

sridhar_1

 

 

   Ph.D.  Scholarships

        Fully Funded Scholarships for Ph.D. Course are Available. The potential  scholar should have good background in Theory of Elasticity, Finite Element Modeling, capable of programming constitutive models, and inclination to learn and experiment.

 

      For further details, please contact with your academic CV. 

 

     Academic Profile & Professional Experience

1987-91 B. Tech. (Mechanical Engg - Jawarharlal Nehru Technological University), India
1991-93 M. Tech (Solid Mehanics & Design - IIT Kanpur) India
1993-94 Senior Project Associate, IIT Kanpur
1994-98 Ph.D. (Mechanics of Materials - University of Cambridge, UK)
1999-00 Research Associate, Cambridge University Engineering Department, UK
2000-01 Research Scientist, National Institute of Standards & Technology (NIST), USA
2001-Present Assistant Professor, NTU

      Research Interests

  • Powder consolidation
  • Sandwich panels design
  • Ultrasonic NDT
  • Adhesion and friction modelling (nanotribology)
  • Adhesive Bonded Joints
  • Biomechanics

    Prizes and Awards

  • Recipient of Cambridge Nehru Scholarship (1994) and UK Overseas Research Student (ORS) award for Ph.D. programme at University of Cambridge, U.K.
  • University Gold Medal (HMT Medal) for securing First Rank at the JNT University, Hyderabad, India.
  • Dr. Ch. Satyanarayana Gold Medal recipient for securing First Rank at the Junior College.
  • Secured 98.55 percentile in Graduate Aptitude Test in Engineering (GATE) - 1991 (an All India level examination for Master's Course in India) and IIT Kanpur Institute Scholarship during M.Tech.
  • Recipient of  Telugu Vignana Parithoshikam (1987) - given to the top 25 students in each district of Andhra Pradesh at 10+2 level.


   Current Teaching (II Semester 2007-08)

  • MP2004 Materials and Manufacturing Processes 
  • MP4011 Mechanical Systems Design and Analysis
  • MP4E05 Materials Selection and Design
  • M6503 Biomaterials - II

       Graduate Students

  • Mr. Lim Yee Wei (working on the design of sandwich panels for energy management and their robust design)
  • Mr. R. Kartheek working on a manufacturing project
  • Dr. Shashi Bhushan Kumar (worked adhesively bonded composite joints) Currently employed with DNV, Singapore
  • Dr. Kotlanka Rama Krishna (working on bone fracture fixation problem) Employed with Institute of Microelectronics (IME), Singapore
  • Dr. Zheng Zuwei (working on the adhesion mechanics of thin visco-elastic layers) Employed with Seagate, Singapore
  • Dr. Kapil Mohan (working on the design of sandwich panels) Employed with Motorola Innovation Center, Singapore.
  • Mr. Loo Zhi Yuan, Shane (worked on the CNT reinforced in sol-gel silica for low-k dielectric application) Employed with Amkor, Singapore.

 Book Chapters

1.      Idapalapati Sridhar, “Material Selection for Green Design” Chapter 9 in Environmentally Conscious Mechanical Design, Edited by Myer Kutz, John-Wiley & Sons (2007) pp 319 – 350.

2.      D. N. Ghista, I. Sridhar, K. Ramakrishna ‘Analysis for internal fixation of a fractured bone by means of bone-fixator plate’ Chapter 11 in “Applied Biomedical Engineering Mechanics” editor D. N. Ghista, Taylor & Francis (CRC press), 2008, pp. 303 – 354.

3.      D. N. Ghista, I. Sridhar, K. Ramakrishna ‘The human lumbar vertebral body: Analysis of its functionally-optimal design’ Chapter 12 in “Applied Biomedical Engineering Mechanics” editor D. N. Ghista, Taylor & Francis (CRC press), 2008, pp. 355 - 378

4.      D. N. Ghista, I. Sridhar, K. Ramakrishna ‘The human spinal vertebral disc: Its optimal structural design characteristics’ Chapter 13 in “Applied Biomedical Engineering Mechanics” editor D. N. Ghista, Taylor & Francis (CRC press), 2008, pp. 379 – 394.

 

   Journal Publications (all these papers are available on-line on respective journal websites)

  1. "Adhesion mechanics of Surface Force Apparatus", With KL Johnson and NA Fleck, Journal of Physics D: Applied Physics 30 [12] (1997), p. 1710-1719. 
  2. "Finite element modelling of scattering of ultrasonic waves by isolated flaws" With NN Kishore and NGR Iyengar, NDT&E International, 33 [5] (2000), pp. 297-305 
  3. "Cold compaction of an array of cylindrical fibres" With NA Fleck and AR Akisanya International Journal of Mechanical Sciences 43 [3] (2001), p. 715-742. 
  4. "Yield behaviour of cold compacted composite powders" With NA Fleck Acta Materialia 48 [13] (2000), p. 3341-3352. 
  5. "Adhesion between a spherical indenter and an elastic solid with a compliant elastic coating"With KL Johnson Journal of Physics D: Applied Physics 34 [5] (2001), p. 683-689. 
  6. "End compression of sandwich columns" With NA Fleck Composites A: Science and Technology 33 [3] (2002), p. 353-359.
  7. “On the adhesion mechanics of Mutli-Layer Elastic Systems" With S. Sivashanker, Surface Coatings and Technology 167[2-3] (2003), 181-187.
  8. “Adhesion Between an AFM Probe and an Incompressible Elastic Film”, With Z. Zuwei, KL Johnson and WT Ang, International Journal of Nanoscience  3 [4-5] (2004), 599-608.
  9.  “Analysis of Internal Fixation of a Long Bone Fracture”, with K. Ramakrishna, S. Sivashanker, V. Ganesh, D.N. Ghista,  Journal of Mechanics in Medicine and Biology, 5[1] (2004), pp 89-103.
  10.  “Prediction and Characterisation of Compressive Failure in Advanced Aerospace Composite” with A C Yong Journal of Institute of Engineers (Singapore), Vol. 45, # 1,57-71, 2005. This paper has won a Merit Award in undergraduate final year project (FYP) competition.
  11.  “A Detailed Analysis of Adhesion Mechanics between a Compliant Elastic Coating and a Spherical Probe”, with Z. W. Zheng, K.L. Johnson, Journal of Physics D: Applied Physics 37[20] (2004), 2886-2895.
  12. “The multiaxial Yield Behavior of an Aluminum Alloy Foam”, With NA Fleck,  Journal of Materials Science 40[15] (2005), 4005-4008.
  13.  “Optimal internal-fixation plate design for necessary and sufficient bone stress shielding”, with K. Ramakrishna, S. Sivashanker, K.S. Khong, D.N. Ghista, Japan Society of Mechanical Engineers Series C, 47[4] (2004) 1086-1094.
  14. “Failure of aerospace composite scarf –joints subjected to uniaxial compression”, with S.B. Kumar, S. Sivashanker and Asim Bag, Materials Science and Engineering A 412 (2005) 117-122. 
  15. “Failure of Sandwich Beams Consisting of Alumina Facesheet and Alporas Foam Core in Bending” with Kapil Mohan, Yip Tick Hon and Hong Pheow Seow, Materials Science and Engineering A 409 (2005) 292-301.
  16. “Effect of friction and adhesion on the load-displacement of a spherical probe in contact with an elastic incompressible film” with Z.W. Zheng, Tribology International 40:2(2007) 180-187.
  17. “Spherical indentation of an elastic thin film on an elastic-plastic substrate”, with Z.W. Zheng, Materials Science and Engineering A 423 (2006) 64-69.
  18. "Human Lumbar Vertebral Body As An Intrinsically Functionally Optimal Structure", with DN Ghista, SC Fan, K Ramakrishna, International Journal of Design and Nature 1 (2006) 34-47.
  19. “Tensile Failure of Adhesively Bonded CFRP Composite Scarf-Joints”, with SB Kumar, S. Sivashanker, S. Osiyemi and A. Bag, Materials Science and Engineering B, 132[1-2] (2006) 113-120.
  20. “Design of Hybrid Sandwich Panel with Aluminum Foam Core and Carbon Fiber Reinforced Plastic Face Sheets under Three-Point Bending”, with Kapil Mohan,  Tick Hon Yip and H.P. Seow,  Solid State Phenomena, Volume 111, (2006) 63-66.
  21.  “Effect of Face sheet Material on the Indentation Response of Metallic Foams", with K. Mohan, T.P. Yip and H. Seow  Journal of Materials Science, 42[11], (2007) 3714 - 3723.
  22. “The Optimal Structural Design of the Human Spinal Intervertebral Disc” with D.N. Ghista, S.C. Fan and K. Ramakrishna, to appear in International Journal of Design and Nature (2006).
  23. “Mode – I fracture energy measurement of adhesively bonded composite joints using modified Single lap joints”, with SB Kumar, S Sivashanker and S Osiyemi, appeared in Journal of Adhesion Science and Technology 20(10): 1109 – 1124,  (2006).
  24. “Effect of surfactants on MWCNTs reinforced sol – gel silica dielectric composites”, with Shane Loo, Shanzhong Wang, Lu Shen and Subodh G. Mhaisalkar, Scripta Materialia 57(12), (2007) pp: 1157-1160.
  25. “Contact mechanics of layered elastic materials: experiment & theory”, with P.M. McGuiggan, J.S. Wallace, D.T. Smith,  Z. Zuwei and K.L. Johnson Journal of Physics D: Applied Physics 40 (2007) 5984 - 5994. 
  26. “Analysis of the Helical Plate for Bone Fracture Fixation”, with K. Ramakrishna and D.N. Ghista. To appear in Injury International Journal of the Care of the Injured (2008).
  27. “Influence of humid environment on the performance of high strength structural carbon fiber composites” with S.B. Kumar and S. Sivashanker. To appear in Materials Science and Engineering A (2008).
  28. “A Comparative Study on the Measurement of Toughness of Stacks Containing Low k Dielectric Films Microelectronics Engineering”, with Z.W. Zheng and S. Balakumar. To appear in Microelectronics Engineering (2008).

 

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