Part of Dr. Meegoda's doctoral dissertation was to provide a micro-mechanics explanation for the hydraulic conductivity of soils. That research was continued at NJIT to model the fluid flow thorough rocks and also investigated the micro-mechanics of contaminant dispersion in soils. Then the Micro-mechanic models were used to explain the mechanical behavior of Civil Engineering materials. This research was the most interesting research that Dr. Meegoda has ever conducted to date. The research team at NJIT investigated the mechanisms contributing to the shear strength of contaminated soils. Dr. Meegoda's research group was the first to use the micro-mechanics to understand the material behavior of asphalt concrete. Because of the computational limitations of micro-mechanic simulation micro-mechanics computer code was successfully ported to a massively parallel computer to simulate micro-mechanical behavior of soils. Based on Dr. Meegoda's accomplishments at NJIT, he was invited to Wuhan, Peoples Republic of China to give an invited paper at the 9th International Conference of the Association for Computer Methods and Advances in Geomechanics. In January 1999, Dr. Meegoda organized and chaired a TRB session on micro-mechanics. Now he is invited to US Army sponsored workshop on Computational Exploration of Discrete Media to be held in the US Army Waterways Experimental Station in November 1999.
Publications: "An Expression for Permeability of Anisotropic Granular Media," International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 13, #6, 1989, Co-authors: King, Ian P., and Arulanandan, K.
"Microscopically Compatible Expression for Hydrodynamic Dispersion" 7th ASCE/EMD Specialty Conference, Blacksburg, Virginia, May 22-25, 1988, page 59.
"Field Prediction of Transmissivity of Fractured Rock," EOS Transactions, American Geophysical Union, Vol. 68, No. 16, April 21, 1987, page 301
"Microscopic Modeling of Drained Shear Strength and Stress-Strain Behavior of Saturated Granular Soils" Proceedings of the 2nd International Conference on Discrete Element Methods (DEM), Vol. 1, pp. 535-546, March 18-19, 1993, Co-authors: Prasanna Ratnaweera.
"Microscopic Modeling of Shear Strength of Contaminated Soils", Mechanics Computing 1990's and Beyond, Editors, H. Adeli and R. L. Sierakowski, Vol. #2, May 1991, pp. 1204-1208, Co-author: Ratnaweera, P.
"Comparison of a Microscopic Model and Macroscopic Model Prediction on the Stress-Strain Behavior of a Soil", Mechanics Computing 1990's and Beyond, Editors, H. Adeli and R. L. Sierakowski, Vol. #2, May 1991, pp. 1199-1203, Co-author: Ratnaweera, P.
"Micro-mechanic Model for Hot Mix Asphalt Concrete to Model Temperature Effects", Accepted for publication in Transportation Research Board, TRB 1999, and Co-author: Kuo-neng G. Chang
"Massively Parallel Computers for Microscopic Modeling of Soils", Computer Methods and Advances in Geomechanics, H. J. Siriwardane & M. M. Zaman Editors, A. A. Balkema Publishers, pp. 617-622, Proceedings of the 8th. International Conference of the Association for Computer Methods and Advances in Geomechanics" May 1994, Morgan Town WV, Co-author: D. Washington
"Micro-mechanics of Hot Mix Asphalt Concrete" ASCE Engineering Mechanics Journal, Vol. 123, #5, May 1997, pp. 495-503, Co-authors: K. G. Chang
"Micro-mechanics and Microscopic Modeling in Geotechnical Engineering- Current Status and Future," Invited Lead Lecture, Computer Methods and Advances in Geomechanics, Jian-Xin Yuan Editor, A. A. Balkema Publishers, Proceedings of the 9th International Conference of the Association for Computer Methods and Advances in Geomechanics" November 1997, Wuhan, PRC, pp. 197-206
Students: Washington D. D. (Ph. D.), K. G. Chang (Ph. D.), and Ratnaweera, P. (Ph. D.)