Mohamed Gadala

Mohamed S. Gadala
Professor
B.Sc. (Cairo University), Ph.D. (McMaster)

ph:
(604) 822-2777
fx: (604) 822-2403
email: gadala@mech.ubc.ca

Research Interests

  • Finite Element Formulation of Nonlinear and Fracture Mechanics Problems
  • Design Optimizations Using the Finite Element Method
  • Bulk and sheet metal forming applications
  • On Line Machine Monitoring and Crack Identification
  • Numerical Simulation of Controlled Cooling Process of Steel
  • Inverse problems in mechanics and heat transfer
  • Finite element applications in nonlinear dynamics

Current Research Work

  • ALE Formulation of Nonlinear Problems: Our developed ALE formulation and in-house ALE program is capable of handling large strain quasi static and dynamic problems in plasticity coupled with thermal effects. Extending the formulation to dynamic fracture mechanics and full scale dynamic problems is undergoing.
  • Crack Detection and Crack Propagation: The objective is to provide industry with combined experimental and numerical solution procedure for crack detection and crack propagation monitoring in rotating components. The emphasis is placed on the practical aspects of identifying flaw parameters and supplying estimates about critical size and remaining safe life in operation.
  • Modeling of Controlled Cooling of Steel on Run-Out Table: Run-out table cooling following hot rolling is the crucial step in determining the final mechanical properties of the steel. The objective of this work is to provide participating companies with a tool to design unique run-out table processing paths that control the phase transformation of new steels and provide optimum mechanical properties.
  • Behavior of Piezoelectric Actuators: Static and dynamic behavior of piezoelectric actuators used in fuel injectors are studied. The project involves experimental electric fatigue tests under various operating conditions and development of finite element models to predict the behavior.

Selected Publications

  • F. Xu and M.S. Gadala, “Heat transfer behavior in the impingement zone under circular water jet”, International Journal of Heat and Mass Transfer, 49 (2006) 3785-3799.
  • F. Xu and M. S. Gadala, “On the application of intrinsic thermocouples in the temperature measurement in the water jet cooling”, Accepted for publication in J. Numerical Heat Transfer , (2006).
  • F. Xu and M. S. Gadala, “An effective approach for the simulation of the cooling process of steel strips on runout tables”, J. Steel Research International , (2006) in press.
  • O. Sung Jun and M. S. Gadala, “Dynamic behavior analysis of cracked rotor”, Journal of Sound & Vibrations, (2006) in press.
  • M.S. Gadala and F. Xu, “A FE-based sequential algorithm for the determination of heat flux during impingement water cooling”, International Journal of Numerical Methods for Heat and Fluid Flow , 16 (2006) 356-385.
  • H. Ressing and M. S. Gadala, “A practical investigation to solving the inverse problem of crack identification through vibration measurements”, Engineering Computations, 23 (2006) 32-56.
  • H. Frei, M.S. Gadala, B.A. Masri, C. Clive and T.R. Oxland, “Cement flow during impaction allogarfting: A finite element analysis”, Journal of Biomechanics, 39 (2006) 493-502.
  • Mohamed S. Gadala and Fuchang Xu, “Flux Marching Method for Two-Dimensional Inverse Heat Conduction Problems in the Water Impingement Cooling”, WSEAS Transaction on Heat and Mass Transfer , 1 (2006) 301-311.
  • M. Zengeya and M.S. Gadala, “Three dimensional modeling of thermohydrodynamic lubrication in slider bearing using streamline upwind Petrov-Galerkin formulation”, Numerical Heat Transfer – Part A , 49 (2006) 1-22.
  • M.S. Gadala, “Suitability of Project-Based Learning (PBL) in Mechanical Design Education”, WSEAS Transaction on Advances in Engineering Education, 2 (2005) 283-289 .
  • M. S. Gadala, “Finite Element Applications in Dynamics”, Chapter-9 in Vibration and Shock Handbook , CRC Press, (2005) 9:329-9:371.
  • M.S. Gadala and F. Xu, “Investigation of error sources in temperature measurement using thermocouples in impingement water cooling”, Experimental Heat Transfer , 18 (2005) 153-177.
  • M. S. Gadala, “Recent trends in ALE formulation and its applications in solid mechanics”, Computer Methods in Applied Mechanics and Engineering , Invited Paper for a special issue on ALE, 193 (2004) 4247-4275.
  • H.N. Bayoumi and M.S. Gadala, “A complete finite element treatment for the fully coupled implicit ALE formulation”, Computational Mechanics, 33 (2004) 435–452.
  • H. Keiner, M.S. Gadala and C.W. Tang, “Validity of bolt removal and gap insertion techniques to experimentally simulate the vibration of a cracked rotor”, Fatigue & Fracture of Engineering Materials & Structures, 27 (2004) 449-458.

Patents

  • M. Tayler, M.S. Gadala and G. Hodgins, “Pressure Washer Drum”, Canadian Patent, Serial No. 2161851, Filing Date: Nov. (1997), Issuing Date: June (1999).
  • M. Tayler, M.S. Gadala and G. Hodgins, “New Design for Pressure Washer Drums”, US Patent, Serial No. 5582728, Filing Date: June (1995), Issuing Date: Dec. (1996).
    Gadala

a place of mind, The University of British Columbia

Faculty of Applied Science
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Tel: 604.822.6413
Email:
Department of Mechanical Engineering
2054-6250 Applied Science Lane,
Vancouver, BC, V6T 1Z4, Canada
Tel: 604.822.2781
Fax: 604.822.2403
Email:

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