Publications

Dr. Ashraf Ali, D.Sc. MBA

Refereed Journal Publications

  1. Abdul Latif Al-Khaleefi, Ashraf Ali, Charles Rajakumar and Loukas F. Kallivokas, “Acoustic Analysis with Absorbing-Boundary Finite Elements and Far-Field Computations using Free-Space Green’s Function”, Engineering Analysis with Boundary Elements 26, pp. 929-937, 2002.
  2. Abdul Latif Al-Khaleefi and Ashraf Ali, “An efficient multi-point support-motion random vibration analysis technique”, Computers and Structures, Vol. 80, No. 22, pp. 1689-1697, 2002.
  3. Mu-Tsang Chen and Ashraf Ali, “An Efficient and Robust Integration Technique for Applied Random Vibration Analysis”, Computers and Structures, Vol. 66, No. 6, pp. 785-798, 1998.
  4. C. Rajakumar and Ashraf Ali, “Boundary Element‑Finite Element Coupled Eigenanalysis of Fluid-structure Systems”, Int. J. for Num. Methods in Engineering, Volume 39, pp. 1625‑1634, 1996.
  5. Ashraf Ali, C. Rajakumar and Shah M. Yunus, “Advances in Acoustic Eigenvalue Analysis Using Boundary Element Method”, Computers and Structures, Vol. 56, No. 5, pp. 837-847, 1995.
  6. Hui Li, Ashraf Ali, T. P. Pawlak and Sunil Saigal, “Mapped Infinite Elements Applied to 3-D Vector Potential Magnetic Problems”, Int. J. for Num. Methods in Engineering, Volume 37, Number 2, pp. 343-356, January 1994.
  7. C. Rajakumar and Ashraf Ali, “Acoustic Boundary Element Eigenproblem with Sound Absorption and its Solution using Lanczos Algorithm”, Int. J. for Num. Methods in Engineering, Vol. 36, No. 23, pp. 3957-3972, December 1993.
  8. Igor Kaljevic’, S. Saigal and Ashraf Ali, “An Infinite Boundary Element Formulation for Three Dimensional Potential Problems”, Int. J. for Num. Methods in Engineering, Vol. 35, No. 10, pp. 2079-2100, December 1992.
  9. C. Rajakumar, Ashraf Ali and S. M. Yunus, “Lanczos Algorithm for Acoustic Boundary Element Eigenvalue Problems”, J. of Acous. Soc. of America, 91(2), pp. 939-948, February 1992.
  10. C. Rajakumar, Ashraf Ali and S. M. Yunus, “A New Acoustic Interface Element for Fluid‑Structure Interaction Problems”, Int. J. for Num. Methods in Engineering, Vol. 33, pp. 369-386, 1992.
  11. Ashraf Ali, S. Sridharan and S. M. Yunus, “Nonlinear Dynamic Buckling of Thin-Walled Beam Columns Under Ground Excitations”, Communications in Appl. Num.  Methods, Vol. 7, pp. 65-77, 1991.
  12. Ashraf Ali, C. Rajakumar and S. M. Yunus, “On the Formulation of the Acoustic Eigenvalue Problems”, Int. J. for Num. Methods in Engineering, Vol. 31, pp. 1271-1282, 1991.
  13. Ashraf Ali and S. Sridharan, “A Special Beam Element for the Analysis of Thin‑Walled Structural Components”, Int. J. for Numerical Methods in Engineering, Vol. 28, pp. 1733‑1747, 1989.
  14. Ashraf Ali and S. Sridharan, “A Versatile Model for Interactive Buckling of Columns and Beam‑Columns”, Int. J. of Solids and Structures, Vol. 24, No. 5, pp. 481‑496, 1988.
  15. S. Sridharan and Ashraf Ali, “Dynamic Instability of Frames Having Thin‑Walled Columns”, Earthquake Engineering and Structural Dynamics, Vol. 16, pp. 705‑717, 1988.
  16. S. Sridharan and Ashraf Ali, “Behavior and Design of Thin‑Walled Columns”, J. of Structural Engineering, ASCE, Vol. 114, No. 1, pp. 103‑120, January 1988.
  17. S. Sridharan and Ashraf Ali, “An Improved Interactive Buckling Analysis of Thin‑Walled Columns Having Doubly Symmetric Sections”, Int. J. of Solids and Structures, Vol. 22, No. 4, pp. 429‑443, 1986.
  18. S. Sridharan and Ashraf Ali, “Interactive Buckling in Thin‑Walled Beam‑Columns”, J. of Engineering Mechanics, ASCE, Vol. 111, No. 12, pp. 1470‑1486, December 1985.
  19. Ashraf Ali and P. L. Gould, “On the Resonant Component of the Response of SDOF Systems Under Random Loadings”, Engineering Structures, Vol. 7, No. 4, pp. 280-282, October 1985.

Non-Refereed Conference Proceedings

  1. Ashraf Ali and Michael Lovell, “ANSYS/LS‑DYNA: Combined Strength of ANSYS PREP‑POST and LS‑DYNA3D Solver”, presented at the Fourth International LS‑DYNA3D Users Conference held at Minneapolis, September 4‑6, 1996.
  2. Ashraf Ali, C. Rajakumar and Loukas F. Kallivokas, “Acoustic Analysis with Absorbing-boundary Finite elements and the use of Free-Space Green’s Functions for Far-field computations”, presented at the Third U.S. National Congress on Computational Mechanics, Dallas, Texas, June 12-14, 1995.
  3. Ronald S. Harichandran and Ashraf Ali, “Random Vibration Analysis: From Research into Practice”, presented at the First National Conference and Workshop on Research into Practice, Sponsored by National Science Foundation and Organized by the Department of Civil Engineering, University of Maryland, College Park, Maryland, held at Crystal City, Virginia, June 15-16, 1995.
  4. Ashraf Ali and Michael Lovell, “ANSYS Tools in Modeling Tires”, Presented at the Workshop on Computational Modeling of Tires, Peninsula Graduate Center, NASA Langley Research Center, Hampton, Virginia, October 26-27, 1994 (Proceedings).
  5. Hui Li, Ashraf Ali, T. P. Pawlak and Sunil Saigal, “Mapped Infinite Elements Applied to 3-D Vector Potential Magnetic Problems”, Presented at the Second U.S. National Congress on Computational Mechanics, Washington, D.C., August 16-18, 1993.
  6. C. Rajakumar and Ashraf Ali, “Boundary Element Eigenanalysis of Fluid-structure Systems”, Presented at the Second U.S. National Congress on Computational Mechanics, Washington, D.C., August 16-18, 1993.
  7. C. Rajakumar and Ashraf Ali, “A Solution Method for Acoustic Boundary Element Eigenproblem with Sound Absorption using Lanczos Algorithm”, presented at the Second International Congress on Recent Development in Air- and Structure-borne Sound and Vibration, March 4-6, 1992, Auburn Univ., Auburn, Alabama, USA.
  8. Ashraf Ali and Dale Ostergaard, “Implementation of FE-BE Hybrid Techniques into Finite Element Programs”, Proc., IABEM-91 Symposium, Kyoto, Japan, October 14-17, 1991, “Boundary Element Methods, Fundamentals and Applications”, Editors: S. Kobayashi and N. Nishimura, Springer Verlag, Germany, 1992, pp. 11-20.
  9. J. Q. Zhen, D. Cartwright, Ashraf Ali and D. Dietrich, “Implementation of an Augmented Finite Element Analysis for Infinite Scalar Potential Fields”, Proc., Fifth ANSYS Conf., Pittsburgh, PA, May 1991.
  10. C. Rajakumar, Ashraf Ali and S. M. Yunus, “Lanczos Algorithm for Acoustic Boundary Element Eigenvalue Problems”, Proc. SECTAM, Georgia Institute of Technology, Atlanta, GA, USA, March 22‑23, 1990.
  11. Ashraf Ali, S. Sridharan and S. M. Yunus, “Nonlinear Dynamic Buckling of Thin‑Walled Beam‑Columns Under Ground Excitations”, Proc. ASME Winter Annual Meeting, San Francisco, CA, USA, Dec. 10‑15, 1989, pp. 111‑119.
  12. C. Rajakumar, Ashraf Ali and S. M. Yunus, “A BE‑FE Coupled Acoustic Element for Fluid‑Structure Interaction Problems”, Proc. Int. Symp. on BEM, East Hartford, CT, USA, Oct. 2‑4, 1989.
  13. S. Sridharan and Ashraf Ali, “A New Analytical Model for Interactive Buckling”, Proc. Int. Conference on Steel and Aluminum Structures, Cardiff, UK, pp. 709‑720, July 1987.
  14. S. Sridharan and Ashraf Ali, “Interactive Buckling in Thin‑Walled Beam‑Columns”, Annual Technical Session Proc., Structural Stability Research Council, pp. 135‑149, April 1985.
  15. S. Sridharan and Ashraf Ali, “Response of Frames Having Thin‑Walled Columns”, Recent Research and Developments in Cold‑Formed Steel, (Proc. 7th Int. Sp. Conference on Cold‑Formed Steel Structures, 1984, St. Louis, MO, USA).

Technical Discussions and Notes

  1. Ashraf Ali, “On Simplification of The DDAM Procedure”, SAVIC (Shock and Vibration Information Analysis Center) Newsletter, January 1995; SAVIC is operated by Booz-Allen & Hamilton Inc., under contract to the Naval Surface Warfare Center/White Oak Laboratory.
  2. Ashraf Ali, “Hybrid FE-BE Techniques in Finite Element Programs”, IABEM Newsletter, Vol. 4, June 1991.
  3. Ashraf Ali, C. Rajakumar and S. M. Yunus, Discussion on the paper “An Improved Formulation for Acoustic Eigenmode Extraction from Boundary Element Models” by J. P. Coyette and K. R. Fyfe, J. of Vibration and Acoustics, Transactions of the ASME, Vol. 112, July 1990. (Paper: pp. 392‑397; Discussion: pp.  397‑398).

Conference Presentations

  1. Ashraf Ali, C. Rajakumar, S. M. Yunus and T. P. Pawlak, “An Investigation into the Acoustic Boundary Element Eigenvalue Problems”, presented at the 5th Int. Conf. on BE Tech., University of Delaware, Newark, Delaware, USA, July 10‑12, 1990.
  2. S. Sridharan and Ashraf Ali, “Interactive Buckling Analysis Using ‘Pregnant’ Beam Elements”, XVII Int. Congress of T. A. M. (ICTAM), Grenoble, France, August 1988.
  3. S. Sridharan and Ashraf Ali, “An Improved Approach to the Design of Thin‑Walled Columns Against Interactive Buckling”, Presented at the ASCE Structural Engineering Congress 85, Chicago, Illinois, USA, September 1985.

Book in Engineering

Boundary Element Methods: Applications in Sound and Vibration by Ashraf Ali and Charles Rajakumar, Taylor & Francis/Balkema, The Netherlands, 2004.