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Research
  • Educational Research

    • We are developing complete (holistic) web-based resources for an undergraduate course in Numerical Methods.  Visit the NSF funded and multiple-award winning website http://numericalmethods.eng.usf.edu

    • We have assessed problem-centered approach in the Numerical Methods course (read paper...)

    • We have incorporated low cost, low space, low setup time experiments in the Numerical Methods course and we are assessing the success of the incorporation (read short paper...)

    • I have started a blog on numerical methods topics to help STEM undergraduates.  Plain English!

  • Composite Materials Research

    • Push out Test for Composite Materials Revisited - A DOE analysis and beyond the elastic limit

    • How does interphase modeling affect nanoindentation test results? (Abstract).

    • Is crack propagation in composite materials independent of fiber volume fraction? (Abstract)

    • Optimizing Specific Strength of Infused Fiber Reinforced Sandwich Composites (Abstract)

  • Bridge Design Research

    • Optimizing the thermal expansion of a hole 

    • Evaluating two different assembly procedures of trunnion-hub-girder assembly.

    • How does geometry affect successful (no cracking) trunnion-hub-girder assembly procedure? (Abstract). 

    • Does step-cooling make trunnion-hub-girder assembly procedure fail-safe? (Abstract)

GRANTS

Holistic Numerical Methods: Unabridged”, National Science Foundation, $500,189, January 2008-December 2010 (PI)

Holistic Numerical Methods”, National Science Foundation, $363,280, February 2004-March 2007 (PI).

Hub Assemblies for the Next Generation of Bascule Bridges”, US Department of Transportation, $73,650, October 2004 – September 2005 (Co-PI).

Holistic Numerical Methods: A Prototype”, National Science Foundation, $74,961, January 2002- May 2003 (PI).

Hub-Girder Bolt Assembly Without An Interference Fit in Bascule Bridges”, Florida Department of Transportation, $110,000, November 2001 – August 2003 (Co-PI).

Parametric Finite Element Analysis and Full Scale Testing of Trunnion Hub Assemblies for Bascule Bridges, FDOT, $250,000, September 1998 - June 2001 (Co-PI).

“Acquisition of an Axial-Torsional Loading System for Civil, Mechanical and Materials Testing”, National Science Foundation, $166,240, October 1999 - April 2001 (Co-PI).

Mechanics of Brittle Matrix Composites with Imperfect Interfaces, AFOSR, $108,319, July 1995- August 1997 (PI).

Development of User Interfaces for Numerical Techniques for Stress Analysis of Laminated Composite Materials, AFOSR, $50,000, September 1994 - June 1995 (PI).

Micromechanics of Matrix Cracking in Brittle Matrix Composites with Frictional Interfaces," Summer Research Extension Program, RDL/AFOSR, $20,000, January 1993 - December 1993 (PI).

Mechanics of Brittle Matrix Composites with Imperfect Interfaces, AFOSR, $93,211, September 1992 - September 1994 (PI).

Annular Cracks In Brittle Matrix Composites," Systran Corporation/WPAFB, Dayton, Ohio, $14,100, May 91 - August 1991 (PI).

"Design and Analysis of Stainless Steel Tanks," Montgomery Tank Lines, Plant City, Florida, $27,653, October 89 - May 90 (Co-PI).

Publications