Dr. Krishnaswamy RAVI-CHANDAR

Professor of Aerospace Engineering and Engineering Mechanics
Associate Director, Research Center for Mechanics of Solids, Structures and Materials

Brief Narrative

Professor Ravi-Chandar received a undergraduate degree in Aeronautical Engineering with first class honors in 1976 from the Madras Institute of Technology in India and graduate degrees in Aeronautics from the California Institute of Technology (M.S. 1977, Ph.D. 1982). He began his academic career at the University of Houston in 1983 and moved to the University of Texas at Austin in September 2000.

Dr. Ravi-Chandar's research interests lie in the general area of mechanical behavior of solids with a particular emphasis on high strain rate fracture behavior. His current thrusts are in the areas of dynamic fracture, inelastic behavior of polymers and composites, and wave propagation in shape memory alloys. While interest in these problems is motivated by their enormous practical importance, the focus of the research is on the generation of a fundamental understanding of the way in which materials deform and fail.  This requires a well integrated experimental and theoretical study, conducted at various spatial and temporal resolution.  Accordingly, our laboratory facilities are geared toward performing experiments specially designed to elucidate these characteristics of material behavior.

Dr. Ravi-Chandar's scholarly contributions are well recognized; he has presented a number of invited lectures at national and international meetings. He has also been a consultant to a number of companies dealing with problems of structural integrity.

ADDRESS:

Center for Mechanics of Solids, Structures and Materials
210 E. 24th Street, WRW 117B
1 University Station, C0600
The University of Texas at Austin
Austin, Texas 78712-0235

Tel. (512) 471-4213, Fax. (512) 471-5500

E-MAIL: kravi@mail.utexas.edu

His administrative associate is Trudy Pzynski and she is located in WRW 117A; her phone is (512) 475-7760 and e-mail is tpzynski@mail.utexas.edu.


EDUCATION:

Ph.D.     Aeronautics, April 1982, California Institute of Technology.
M.S.      Aeronautics, June 1977, California Institute of Technology.
DMIT    Aeronautical Engineering, May 1976, Madras Institute of Technology, Graduated with First Class Honours.
              (Diploma of the Madras Institute of Technology; equivalent to a Bachelor's degree in Engineering)
B.Sc.     Physics,  May 1973, Bangalore University.

ACADEMIC POSITIONS:


HONORS AND AWARDS:

        2004               Murray Medal, Society for Experimental Mechanics
        2000               Elected Fellow of the American Academy of Mechanics
        1999               Elected Fellow of the Society for Experimental Mechanics
        1999               Elected Fellow of the American Society of Mechanical Engineers,
        1988               Junior Faculty Research Excellence Award, Cullen College of Engineering, University of Houston
        1981               Ernest Sechler Memorial Award, California Institute of Technology
     1976-77            GALCIT Wind Tunnel Fellowship, California Institute of Technology
1974, 75 and 76     First Prize for Academic Proficiency, Madras Institute of Technology, Madras, India


EDITORIAL BOARDS:

Editor-in Chief, International Journal of Fracture
[Click on Editor-in-Chief to send a message, clickon the picture to go to the journal home page]

Associate Editor, Experimental Mechanics, 1999 - 2002
Associate Editor, Journal of Applied Mechanics, 1999 - present
Editorial Board, Mechanics of Time Dependent Materials, Mechanics of Advanced Materials and Structures

NATIONAL AND INTERNATIONAL COMMITTEES:

Member, Executive Committee, Applied Mechanics Division of the American Society of Mechanical Engineers, 2003 - 2008
Member, Executive Board, Society for Experimental Mechanics, 2005 - 2005
Member, US National Committee of Theoretical and Applied Mechanics, 2003 - present
Member, International Advisory Board, Experimental Mechanics, 2003 - present
Vice President
, International Congress of Fracture, 2001 - present
Director, Society of Engineering Science, 1998 - 2000
Director, International Congress of Fracture, 1997 - 2001

Co-Chairman, 10th International Conference on Fracture, Hawaii, December 2001.

RESEARCH INTERESTS:

Experimental Solid Mechanics
    [Murray Lecture presented at the 2004 SEM X Internatinal Congress and Exposition on Experimental and Applied Mechanics, Costa Mesa, Ca, June 2004]
Dynamic Fracture Mechanics
    [Keynote Lecture presented at the 2003 ASME Applied Mechanics and Materials Conference, Scottsdale Az, June 2003]
Waves in Shape Memory Alloys
Mechanical Behavior of Polymers, Ceramics and Composites
Biomechanics

Current Projects

Dynamic fracture and friction
One-dimensional waves in shape memory alloys
Inelastic response of polymers under multiaxial compression
Mechanical behavior of composites under mutiaxial compression
Whirling of rods and strings
Modeling and simulation of post-mastectomy reconstructive breast surgery
Mechanics of stents

RECENT PUBLICATIONS

K. Ravi-Chandar, Dynamics of brittle fracture, in Advances in Fracture Research, (eds. B.L. Karihaloo et al), (1997), 2707-2719.

K. Ravi-Chandar and B. Yang, On the role of the microcracks in the dynamic fracture of brittle materials, Journal of Mechanics and Physics of Solids, 45, (1997), 535-563.

D. Ponnusamy, N. Tralshawala, J.R. Claycomb, J.H. Miller, K. Ravi-Chandar and K. Salama, Processing and characterization of high Tc magnetic shields and flux transform-ers, IEEE Transactions on Applied Superconductivity, 7, (1997), 1418.

S. Ramanathan, Z. Li, and K. Ravi-Chandar, On the growth of BSCCO whiskers, Physica C, 289, (1997), 192-198.

B. Yang and K. Ravi-Chandar, Anti-plane shear cracking under quasistatic loading in a damaging material, International Journal of Solids and Structures, 35, (1998), 3695-3715.

C.M. Nygards, K.W. White and K. Ravi-Chandar, Strength of HVOF coating-substrate interfaces, Thin Solid Films, 332, (1998), 185-188.

 K. Ravi-Chandar, Dynamic fracture of nominally brittle materials, International Journal of Fracture, [invited contribution to a special volume of the journal] 90, (1998), 83-102.

H. Fang and K. Ravi-Chandar, Nanocrystalline Y-Ba-Cu-O powder, Journal of Superconductivity, 11, (1998), 555-561.

B. Yang and K. Ravi-Chandar, A single-domain dual-boundary-element formulation in-corporating a cohesive zone model for elastostatic cracks, International Journal of Fracture, 93, (1998), 115-144.

J. Lu and K. Ravi-Chandar, Inelastic deformation and localization in polycarbonate under tension, International Journal of Solids and Structures, 36, (1999), 391-425.

K. Ravi-Chandar and W.G. Knauss, Processes controlling fast fracture in brittle materials, invited contribution to a special issue of Computers in Science and Engineering, 1, (1999), 24-31.

B. Yang and K. Ravi-Chandar, Evaluation of the elastic T-stress by the stress difference method, Engineering Fracture Mechanics, 64, (1999), 589-605.

K. Ravi-Chandar, J. Lu, B. Yang, and Z. Zhu, Failure mode transitions in polymers under high strain rate loading, special volume of the International Journal of Fracture, 101, (2000), 33-72.

Z. Ma and K. Ravi-Chandar, Confined compression - A stable homogeneous deformation for multiaxial constitutive characterization, Experimental Mechanics, 40, (2000), 38-45.

H. Fang and K. Ravi-Chandar, Fabrication of YBCO disks by the liquid down flow method, Physica C, 340, (2000), 261-268.

K. Ravi-Chandar and Z. Ma, Inelastic deformation in polymers under multiaxial loading, Mechanics of Time-Dependent Materials, 4, (2000), 333-357.

B. Yang and K. Ravi-Chandar, Crack path instabilities in a quenched glass plate, Journal of Mechanics and Physics of Solids, 49, (2001), 91-130.

B. Yang, S. Mall and K. Ravi-Chandar, A cohesive zone model for fatigue crack growth in quasibrittle materials, International Journal of Solids and Structures, 38, (2001), 3927-3944 .

K. Ravi-Chandar, Experimental challenges in the investigation of dynamic fracture of brittle materials, Physics of Fracture, Eds. E. Bouchaud, D. Jeulin, C. Piroul and S. Roux, Kluwer Academic Publishers, Dordrecht, (2001), 323-342.

Y. Fang, K. Ravi-Chandar and K.W. White, Estimate of the residual stress-state in polycrystalline alumina, Journal of the American Ceramic Society, 85, (2002), 1783-1787.

E. Cerda, K. Ravi-Chandar and L. Mahadevan, Wrinkling of a thin elastic sheet under tension, Nature, 419, (2002), 579-580.

D.C. Lagoudas, K. Ravi-Chandar, K. Sarh and P. Popov, Dynamic loading of polycrystalline shape memory alloy rods, Mechanics of Materials, 35, (2003), 689-716.

H. Fang, J.R. Claycomb, Y.X. Zhou, P.T. Putman, S. Padmanabhan, J.H. Miller, K. Ravi-Chandar, K. Salama, Melt-textured YBCO superconducting tube for magnetic shielding, IEEE Transactions on Applied Superconductivity, 13, (2003), 3103-3105.

D. Bonamy and K. Ravi-Chandar, Interaction of stress waves with propagating cracks, Physical Review Letters, 91, Art. No. 235502, (2003).

T. Apicharttabrut, and K. Ravi-Chandar, (2003), Impact response of helicoidal composites, Report 03-04, Center for Mechanics of Solids, Structures and Materials, The University of Texas at Austin.

C. Williams, I.A. Kakadaris, K. Ravi-Chandar, M.J. Miller, C.W. Patrick, Simulation studies for predicting surgical outcomes in breast reconstructive surgery , Lecture Notes in Computer Science, 2878, (2003),  9-16 .

H Fang, Y X Zhou, K Ravi-Chandar and K Salama, On the study of the liquid infiltration and seeded growth process, Superconductor Science and Technology, 17, (2004), 269–273, (DOI: 10.1088/0953-2048/17/2/006).

R. Wang and K. Ravi-Chandar, Mechanical response of an aortic stent – I. Pressure-diameter relationship, Journal of Applied Mechanics, accepted for publication January 2004.

R. Wang and K. Ravi-Chandar, Mechanical response of an aortic stent – II. A beam on elastic foundation model, Journal of Applied Mechanics, accepted for publication January 2004.

D. Qvale and K. Ravi-Chandar, Viscoelastic characterization of polymers under multiaxial compression, Mechanics of Time Dependent Materials, accepted for publication, February 2004.