Stephen F. Duffy PhD, PE, F. ASCE
     
Cleveland State University
114 Stilwell Hall
Cleveland, Ohio 44115
Ph: 216-687-3874
Fax: 918-513-6950
E-mail: s.duffy@csuohio.edu
  

  • COURSE INFORMATION
  • BOOKS AND BOOK CHAPTERS
  • REFEREED JOURNAL ARTICLES
  • OTHER PUBLICATIONS
  • INDUSTRY REPORTS
  • GRANTS AND FELLOWSHIPS
  • CONSULTING & INDUSTRY COLLABORATIONS
  • CONFERENCE SESSIONS AND SYMPOSIUMS ORGANIZED
  • STUDENT THESES
  • PROFESSIONAL SOCIETIES
  • COURSES TAUGHT

    • CVE 601/701 Graduate Seminar

  • 1. Transportation article for Abstract #1 (Due Monday March 18, 2013)


  • 2. Environmental article for Abstract #1 (Due Monday March 18, 2013)


  • 3. Structural article for Abstract #1 (Due Monday March 18, 2013)


  • 4. Transportation article for Abstract #2 (Due Monday April 8, 2013)


  • 5. Environmental article for Abstract #2 (Due Monday April 8, 2013)


  • 6. Structural article for Abstract #2 (Due Monday April 8, 2013)


  • 7. Transportation article for Abstract #3 (Due Thursday April 25, 2013)


  • 8. Environmental article for Abstract #3 (Due Thursday April 25, 2013)


  • 8. (continued) Last page of environmental article for Abstract #3 (Due Thursday April 25, 2013)


  • 10. Structural article for Abstract #3 (Due Thursday April 25, 2013)


  • 9. (continued) Last page of structural article for Abstract #3 (Due Thursday April 25, 2013)



    • CVE 511 Matrix Methods & CVE 412 Structures II

  • CVE 412/MME 511 Syllabus Spring Semester 2013
      • Homework Assignment #1 (Due Tuesday February 5, 2013)

      Homework Assignment #2 (Due Thursday February 7, 2013)

      Homework Assignment #3 (Due Tuesday February 12, 2013)

      Homework Assignment #4 (Due Tuesday February 26, 2013)

      Homework Assignment #5 (Due Tuesday March 4, 2013)

      Homework Assignment #6 (Due Thursday April 4, 2013)

      Homework Assignment #7 (Due Thursday April 25, 2013)

      Homework Assignment #8 (Due Thursday May 2, 2013)





      Helpful Web Sites

      Beam deflection and rotation tables

      Beam deflections - A Review of Methods

      Fixed-fixed Beam Reactions


    1. Lecture Notes - Package #1 (revised 1/22/2013)


    2. Lecture Notes - Package #2 (revised 1/22/2012)


    3. Lecture Notes - Package #3 (revised 2/7/2013)


    4. Lecture Notes - Package #4 **(revised 3/26/2013)**


    5. Lecture Notes - Package #5 (revised 2/19/2013)


    6. Supplement Lecture Notes #1 - Package #5


    7. Supplement Lecture Notes #2 - Package #5


    8. Lecture Notes - Package #6 (revised 3/26/2013)


    9. Lecture Notes - Package #7 (revised 4/4/2013)


    10. Lecture Notes - Package #8


    11. Lecture Notes - Package #10 (revised April 18, 2013)


    12. Lecture Notes - Package #11 (revised April 19, 2013)


    13. Lecture Notes - Package #12


    14. Lecture Notes - Package #13


    15. Lecture Notes - Package #14


    16. Lecture Notes - Package #15a


    17. Lecture Notes - Package #15b


    18. Lecture Notes - Package #15c


    19. Lecture Notes - Package #15d


    20. Lecture Notes - Package #15e


      21. BOOKS AND BOOK CHAPTERS

      1. "Structural Design Methodologies for Ceramic Based Material Systems," S.F. Duffy, A. Chulya, and J.P. Gyekenyesi, Chapter 14 in Flight-Vehicle Materials, Structures and Dynamics Technologies - Assessment and Future Directions, eds. A.K. Noor and S.L. Venneri, The American Society of Mechanical Engineers, pp. 265-285, 1992 (also published as NASA TM-103097).


      2. "Design Practices for Whisker Toughened Ceramic Components," S.F. Duffy and A.F. Saleeb, in Engineered Materials Handbook Volume 4: Ceramics and Glasses, Samuel J. Snyder tech. ed., ASM International, pp. 733-740, (1991).


      3. "Reliability and Life Prediction of Ceramic Composite Structures at Elevated Temperatures," S.F. Duffy and J.P. Gyekenyesi, in High Temperature Mechanical Behavior of Ceramic Composites, S.V. Nair and K. Jakus, eds., Butterworth-Heineman, Boston, pp. 471-515, (1995).


      4. "High Temperature Life Prediction of Monolithic Silicon Carbide Heat Exchanger Tubes," J.B. Sandifer, M.J. Edwards, T.S. Brown, and S.F. Duffy, in Life Prediction Methodologies and Data for Ceramic Materials, ASTM STP 1201, C.R. Brinkman and S.F. Duffy eds., American Society for Testing and Materials, Philadelphia, pp. 373-389, (1994).


      5. "A Methodology to Predict Creep Life for Advanced Ceramics Using Continuum Damage Mechanics Concepts," T.-J. Chuang and S.F. Duffy, in Life Prediction Methodologies and Data for Ceramic Materials, ASTM STP 1201, C.R. Brinkman and S.F. Duffy eds., American Society for Testing and Materials, Philadelphia, pp. 207-227, (1994).


      6. "Issues Relating to Reliability Based Component Design," S.F. Duffy, in Handbook on Discontinuously Reinforced Ceramic Matrix Composites, K. Bowman, S.K. El-Rahaiby, and J. Wachtman eds., DoD Ceramics Information Analysis Center Purdue University, pp. 310-355, 1995.


      7. "Design with Brittle Materials," S.F. Duffy and L.A. Janosik, in Engineered Materials Handbook: Volume 20 Material Selection and Design, G. Dieter, volume chair, ASM International, pp. 622-638, 1997.


      8. "Life Prediction of Structural Components," S.F. Duffy, L.A. Janosik, A.A. Wereszczak, B. Schenk, A. Suzuki, J. Lamon, and D.J. Thomas, in Progress in Ceramic Gas Turbine Development: Volume 2 Ceramic Gas Turbine Component Development and Characterization, M. van Roode, M.K. Ferber, and D.W. Richerson, volume chairs, ASME Press, pp. 553-606, 2003.

      REFEREED JOURNAL ARTICLES

      1. "A Continuum Deformation Theory for Metal-Matrix Composites at High Temperature," D.N. Robinson and S.F. Duffy, Journal of Engineering Mechanics, Vol. 116, No. 4, pp. 832-844, (April, 1990).


      2. "A Unified Inelastic Constitutive Theory for Sintered Powder Metals," S.F. Duffy, Mechanics of Materials, Vol. 7, No. 3, pp. 245-254, (December, 1988).


      3. "Noninteractive Macroscopic Statistical Failure Theory for Whisker Reinforced Ceramic Composites," S.F. Duffy and S.M. Arnold, Journal of Composite Materials, Vol. 24, No. 3, pp. 293-308, (March, 1990).


      4. "Noninteractive Macroscopic Reliability Model for Ceramic Matrix Composites with Orthotropic Material Symmetry," S.F. Duffy and J.M. Manderscheid, Journal of Engineering for Gas Turbines and Power, Vol. 112, No. 4, pp. 507-511, (October, 1990), (also published as NASA TM-101414).


      5. "Analysis of Whisker-Toughened Ceramic Components - A Design Engineer's Viewpoint," S.F. Duffy, J.M. Manderscheid, and J.L. Palko, Ceramic Bulletin, Vol. 68, No. 12, pp. 2078-2083, (December, 1989), (also published as NASA TM-102333).


      6. "Extension of a Noninteractive Reliability Model for Ceramic Matrix Composites," S.F. Duffy, R.C. Wetherhold, and L.K. Jain, Transactions of the ASME - Journal of Engineering for Gas Turbines and Power, Vol. 115, No. 1, pp. 205-207, (January, 1993), (also published as NASA CR-185267).


      7. "Structural Reliability Analysis of Laminated CMC Components," S.F. Duffy, J.L. Palko, and J.P. Gyekenyesi, Transactions of the ASME - Journal of Engineering for Gas Turbines and Power, Vol. 115, No. 1, pp. 103-108, (January, 1993), (also published as NASA TM-103685).


      8. "Reliability Analysis of Structural Components Fabricated from Ceramic Materials Using a Three-Parameter Weibull Distribution," S.F. Duffy, L.M. Powers, and A. Starlinger, Transactions of the ASME - Journal of Engineering for Gas Turbines and Power, Vol. 115, No. 1, pp. 109-116,(January, 1993), (also published as NASA TM-105370).


      9. "Analysis of Whisker-Toughened CMC Structural Components Using an Interactive Reliability Model," S.F. Duffy and J.L. Palko, AIAA Journal, Vol. 32, No. 5, pp. 1043-1048, (May, 1994), (also published as NASA CR-190755).


      10. "Reliability Analysis of Laminated Ceramic Matrix Composites Using Shell Subelement Techniques," A. Starlinger, D.J. Thomas, S.F. Duffy, and J.P. Gyekenyesi, AIAA Journal, Vol. 31, No. 11, pp. 2181-2183, (November, 1993), (also published as NASA TM-105413).


      11. "Reporting Strength Data and Estimating Weibull Distribution Parameters for Advanced Ceramics," S.F. Duffy, G.D. Quinn and C.A. Johnson, ASTM Standard Practice C 1239 - 94.


      12. "Parameter Estimation Techniques Based on Optimizing Goodness-of-Fit Statistics for Structural Reliability," A. Starlinger, S.F. Duffy, and J.L. Palko, Proceedings of the 10th Biennial Conference on Reliability, Stress Analysis, and Failure Prevention, DE-Vol. 55, R.J. Schaller ed., ASME, Albuquerque, NM, pp. 65-77, (September, 1993).


      13. "Composites Research at NASA Lewis Research Center," S.R. Levine, S.F. Duffy, A. Vary, M.V. Nathal, R.V. Miner, S.M. Arnold, M.G. Castelli, D.A. Hopkins, and M.A. Meador, Composites Engineering, Vol. 4, No. 8, pp. 787-810.


      14. "Trends in the Design and Analysis of Components Fabricated From CFCCs," S.F. Duffy, J.L Palko, J.B Sandifer, C.L. DeBellis, M.J. Edwards, and D.L Hindman, Transactions of the ASME - Journal of Engineering for Gas Turbines and Power, Vol. 119, No. 1, pp. 1-6, (January, 1997).


      15. "An Overview of Engineering Concepts and Current Design Algorithms for Probabilistic Structural Analysis," S.F. Duffy, J. Hu, and D.A. Hopkins, in Proceedings of the 1995 Design Engineering Technical Conferences - Volume 2, DE-Vol. 83, Boston, Massachusetts, pp. 3-16, (September, 1995).


      16. "A Viscoplastic Constitutive Theory For Monolithic Ceramics - I" L.A. Janosik and S.F. Duffy,Transactions of the ASME - Journal of Engineering for Gas Turbines and Power, Vol. 120, No. 1, pp. 155-161, (January, 1998).


      17. "Fine Ceramics (advanced ceramics, advanced technical ceramics) – Weibull Statistics for Strength Data," S.F. Duffy, International Organization for Standards (ISO) Standard 20501, December 1, 2003.


      18. "Weibull Analysis Effective Volume and Effective Area for a Ceramic C – Ring Test Specimen," S.F. Duffy, E.H. Baker, A.A. Wereszczak and J.J. Swab,ASTM Journal of Testing and Evaluation, Vol. 33, No. 4, pp 233-238, July 2005


      19. "Strength of a Ceramic Sectored Flexural Test Specimen," A.A. Wereszczak, S.F. Duffy, E.H. Baker, J.J. Swab, and G.J. Champoux, ASTM Journal of Testing and Evaluation, Vol. 36, No. 1, pp 17-23, January 2008.


      20. "Simulator Study of Precipitating Factors for Work Zone Crashes," D. McAvoy, S.F. Duffy and H.S. Whiting, accepted for publication in the Journal of the Transportation Research Board, February 2011.


      21. "Implanted Renal Replacement for End-Stage Renal Disease," S. Roy, K.G. Goldman, R.E. Marchant, A.L. Zydney, D.L. Brown, A.J. Fleischman, A.T. Conlisk, T.A. Desai, S. Duffy, H.D. Humes, and W.H. Fissell, Panminerva Medica, Volume 53, No. 3, pp. 153-166, September 2011.


      INDUSTRY STANDARDS

      1. "Standard Practice for Reporting Uniaxial Strength Data and Estimating Weibull Distribution Parameters for Advanced Ceramics," S.F. Duffy, G. Quinn, and C. Johnson, ASTM Designation: C 1239, (1995, 2000, 2005).


      2. "Fine Ceramics (Advanced Ceramics, Advanced Technical Ceramics) - Weibull Statistics for Strength Data," S.F. Duffy, ISO Designation: FDIS 20501, (2003).


      3. "Size Scaling Of Tensile Strengths Using Weibull Statistics For Advanced Ceramics," S.F. Duffy, G. Quinn, E.H. Baker and J.A. Salem, ASTM Designation: C 1683, (2008).


      4. "Reporting Uniaxial Strength Data And Estimating Weibull Distribution Parameters For Graphite," S.F. Duffy and C. James, ASTM Standard (Passed ASTM society ballot fall 2012).

      OTHER PUBLICATIONS

      1. "A Viscoplastic Constitutive Theory for Metal Matrix Composites at High Temperature," D.N. Robinson, S.F. Duffy and J.R. Ellis, in 1987 Pressure Vessels and Piping Conference, PVP-Vol. 123, San Diego, Ca., pp. 49-56, (June, 1987), (also published as NASA CR-17953).


      2. "A Viscoplastic Constitutive Theory for Transversely Isotropic Materials," D.N. Robinson, S.F. Duffy and J.R. Ellis, in Third Symposium on Nonlinear Relations for High Temperature Applications, NASA CP-10010, Akron, Oh., pp. 7-25, (June, 1986).


      3. "Whisker-Reinforced Ceramic Composites for Heat Engine Components," S.F. Duffy, in Lewis Structures Technology - 1988: Vol. 3, NASA CP-3003, Cleveland, Oh., pp. 21-40, (May, 1988).


      4. "Time Dependent Reliability Model Incorporating Continuum Damage Mechanics for High-Temperature Ceramics," S.F. Duffy and J.P. Gyekenyesi, NASA TM-102046, (May, 1989).


      5. "CCARES - A Computer Algorithm for the Reliability Analysis of Laminated CMC Components," S.F. Duffy and J.P. Gyekenyesi, HITEMP Review 1990, Advanced High Temperature Engine Materials Technology Program, NASA CP-10051, Cleveland, Oh., pp. 77-1 through 77-9, (October, 1990).


      6. "Micromechanics-Based Constitutive Relations for Creep of SiC/RBSN Composites," B.B. Hill, H.T. Hahn, C.E. Bakis, and S.F. Duffy, HITEMP Review 1991, Advanced High Temperature Engine Materials Technology Program, NASA CP-10082, Cleveland, Oh., pp. 58-1 through 58-13, (October, 1991).


      7. "Design of a Laminated CMC Heat Exchanger Using the C/CARES Algorithm," J.L. Palko and S.F. Duffy, HITEMP Review 1993, Advanced High Temperature Engine Materials Technology Program, NASA CP-19117, Cleveland, Oh., pp. 75-1 through 75-8, (October, 1993).


      8. "A Creep Life Prediction Model for Continuous Fiber Reinforced Ceramic Composites," T.-J. Chuang and S.F. Duffy, HITEMP Review 1993, Advanced High Temperature Engine Materials Technology Program, NASA CP-19117, Cleveland, Oh., pp. 77-1 through 77-17, (October, 1993).


      9. "Reliability Analysis of Single Crystal NiAl Turbine Blades," J.L Palko, S.F. Duffy, J.A. Salem, R.D. Noebe, F. Holland, D.R. Wheeler, P.K. Wright, HITEMP Review 1994, Advanced High Temperature Engine Materials Technology Program, NASA CP-10146, Cleveland, Oh., pp. 56-1 through 56-11, (October, 1994).


      10. "C-Ring Strength of Advanced Ceramics," A.A. Wereszczak, R.J. Caspe, , J.J. Swab, S.F. Duffy and E.H. Baker, Ceramic Engineering & Science Proceedings of the 27th International Conference on Advanced Ceramics and Composites:B, W.M. Kriven and H.T. Lin, editors, January 26-31, 2003, Cocoa Beach, Florida, The American Ceramic Society, Westerville, Ohio, pp 483-490.


      11. "Effective Area And Effective Volume Calculations For Ceramic Test Specimens," R. Jain, J.A. Locke, and S.F. Duffy, ASME Turbo Expo 2009, Orlando, Florida, June 8-12, 2009, ASME-GT2009-59028


      12. "Integrating Engineering into High School Curricula," J.E. Marencik, S.F. Duffy, D.E. Burrowbridge, and N. Sridhar, Proceedings of the 2009 Northeast American Society of Engineering Education Conference, April 3-4, 2009, Bridgeport CT, USA.


      13. "Widening the pipeline: One Center’s Attempt to Influence Each Level," D.K. Jackson, D.E. Burrowbridge, N. Sridhar, M. Arafah, and S.F. Duffy, Proceedings of the P-12 Engineering and Design Education Research Summit, Seaside, Oregon (USA), August 11–13, 2010.


      14. "Engineering in K-12: Addressing the Need for Change in Ohio STEM Education," M. Arafah, A. Trombetta, D. Jackson, S. Duffy, and D. Burrowbridge, Presented at the P-12 Engineering and Design Education Research Summit. Seaside, Oregon, August 11-13, 2010.


      15. "Progress in Developing Finite Element Models Replicating Flexural Graphite Testing," R.L. Bratton and S.F. Duffy, 11th International Nuclear Graphite Specialists Meeting, September 12-15, 2010, Eastbourne Centre, UK.


      16. "Simulator Study of Precipitating Factors for Work Zone Crashes," D. McAvoy, S.F. Duffy and H.S. Whiting, TRB 90th Annual Meeting, Session: Driver Response in Work Zones, 11-2693, January 23-27, 2011.


      17. "Inferential Statistics and Likelihood Ratio Confidence Bounds Established for Weibull Distribution Parameters," A. Parikh, C. James, S.F. Duffy and R.L. Bratton, 12th International Nuclear Graphite Specialists Meeting, September 20 - 23, 2011, Jeju, Korea.


      18. "Reliability Prediction Methodologies: Comparison of the Proposed ASME code for Nuclear Grade Graphite to the Standard Practice Protocol for Advanced Ceramics," E.H. Baker, C. James, S.F. Duffy, and R.L. Bratton, 12th International Nuclear Graphite Specialists Meeting, September 20 - 23, 2011, Jeju, Korea.


      SELECTED CONTRACT REPORTS

      1. "Finite Element Model and Analysis of Glass Sprinkler Bulb," R.L. Lehman and S.F. Duffy, November, 1994 - Central Sprinkler Corporation.


      2. "Effect of Applied Torque on The Reliability of Glass Sprinkler Bulb," R.L. Lehman and S.F. Duffy, April, 1995 - Central Sprinkler Corporation.


      3. "Parameter Estimation for the Two- and Three-Parameter Weibull Distribution," Bimonthly Reports #1 through #6, S.F. Duffy, V.J. Tennery, E.H. Baker and J.L. Palko, February, 1996 through December, 1996 - Lockheed Martin Energy Systems.


      4. "Structural Analysis: Bridge Demolition & Erection - ODOT Project #337-96, Bridge SAN-6-17.51, Sandusky County," S.F. Duffy and J.A. Recktenwald, June, 1996 - The Great Lakes Construction Company.


      5. "Structural Analysis: Bridge Demolition & Erection - ODOT Project #419-96 Bridge CUY-21-09.49 Cuyahoga County," S.F. Duffy and J.A. Recktenwald, August, 1996 - The Great Lakes Construction Company.


      6. "Size Effects in Ceramic Materials: Computational Issues Associated with Parameter Estimations," S.F. Duffy and E.H. Baker, Army Research Lab Contractors Report 0560 (ARL-CR-0560), April 2005.


      GRANTS AND FELLOWSHIPS

      1. "Constitutive Modeling and Finite Element Analysis of High Temperature Furnaces"

      2. "Constitutive Relationships for Materials Used at Elevated Temperature,"

      3. "NASA/ASEE Summer Faculty Fellowship Program"

      4. "Reliability Models, Computer Algorithms, and Their Integration With Finite Element Codes"

      5. "Probabilistic Analysis of Mechanical Properties - Continuous Fiber Ceramic Composite"

      6. "An Investigation of Reliability Models for Laminated Ceramic Composites and Their Implementation into Finite Element Codes"

      7. "Design Protocols and Analytical Strategies That Incorporate Structural Reliability Models"

      8. "Advanced Heat Exchanger - Phase III"

      9. "Design Analysis and Material Modeling for Ceramic Matrix Composites"

      10. "Design Protocols and Analytical Strategies that Incorporate Structural Reliability Models "

      11. "Design Methodologies and Computer Algorithms for the Analysis of Components Fabricated from Ceramic Based Material Systems "

      12. "Design Methodologies and Computer Algorithms for the Analysis of Components Fabricated from Ceramic Based Material Systems "

      13. "Curriculum Development: Work Zone Safety "
        • Principal Investigator: S.F. Duffy (N. Delatte, co-investigator)
        • Agency: Department of Education
        • Agency Research No.: P116Z040299 URO No.: DFY R-16
        • Amount: $248,525.00
        • Time Period: June 1, 2004 August 31, 2005

      14. "Work Zone Safety and Efficiency "
        • Principal Investigator: S.F. Duffy
        • Agency: US Department of Transportation
        • Agency Research No.: DTRT06-G-0024 URO No.: DFY R-18
        • Amount: $1,760,000.00 (does not include local matching dollars)
        • Time Period: July 1, 2006 June 30, 2010

      15. "Garrett Morgan Program for Women and Minorities in Transportation"
        • Principal Investigator: S.F. Duffy
        • Agency: US Department of Transportation/Shaker Heights School System
        • Agency Research No.: URO No.: DFY R-19
        • Amount: $41,833
        • Time Period: August 15, 2007 July 31, 2008

      16. "Modeling Stress Strain Relationships and Predicting Failure Probabilities For Graphite Core Components"
        • Principal Investigator: S.F. Duffy
        • Agency: US Department of Energy
        • Agency Research No.: 09-347 URO No.: DFY R-23
        • Amount: $269,849
        • Time Period: October 1, 2009 September 30, 2012

      17. "Elementary Flow at Boulevard: Seeding Inquiry into Engineering"
        • Co-Principal Investigators: D.K. Jackson, S.F. Duffy
        • Agency: CHUH School District/US Department of Transportation (Garrett Morgan Program)
        • Agency Research No.: URO No.: Duffy25
        • Amount: $21,421
        • Time Period: September 1, 2011 through August 31, 2012
        • Time Period: October 1, 2009 September 30, 2012

      18. "Mathematics Achievement as a STEP for STEM Success"
        • Principal Investigator: J. Holcomb
        • Co-Principal Investigators: D.K. Jackson, S.F. Duffy, and A. Resnick
        • Agency: National Science Foundation
        • Agency Research No.: URO No.: Holcxx
        • Amount: $875,628
        • Time Period: September 1, 2012 through August 31, 2017
        • Time Period: October 1, 2009 September 30, 2012

      19. "University Scholars in STEM"
        • Principal Investigator: L. Gold
        • Co-Principal Investigators: D.K. Jackson, S.F. Duffy, J. Scott, and N. Sridhar
        • Agency: National Science Foundation
        • Agency Research No.: URO No.: Goldxx
        • Amount: $600,000
        • Time Period: September 15, 2012 through August 31, 2016
        • Time Period: October 1, 2009 September 30, 2012

      20. "Garrett A. Morgan Technology and Transportation Education Program"
        • Principal Investigator: D.K. Jackson
        • Co-Principal Investigators: J. Jenkins, S.F. Duffy, and O. Tukel
        • Agency: Cleveland Metropolitan School District (CMSD)/US Department of Transportation
        • Agency Research No.: URO No.: Jackxx
        • Amount: $48,742
        • Time Period: TBD
        • Time Period: October 1, 2009 through September 30, 2012

      CONSULTING & INDUSTRY COLLABORATIONS

      1. "Developing Spreadsheet Macros for the Estimation of Weibull Parameters from Failure Data"

      2. "Structural Reliability Models for Intermetallic Single Crystal Materials"

      3. "Reliability Analysis of Glass Fuses for Commercial Fire Protection Sprinklers"

      4. "Design and Reliability Analysis of Solid Oxide Fuel Cells"

      5. "Effect of Applied Torque on the Reliability of Glass Sprinkler Bulb"

      6. "Identification of Technology and Marketing Information for Onshore Pile Driving"

      7. "Parameter Estimation for the Two- and Three-Parameter Weibull Distribution"

      8. "Analysis of PVDF Seal for Flexible Pipe Used in Off-Shore Oil Platforms"


      CONFERENCE SESSIONS AND SYMPOSIUMS ORGANIZED & CHAIRED

      1. "Mechanics of Ceramic Matrix Composites," Session 96 - 1991 ASME Turbo Expo - Land, Sea, & Air; J.P. Gyekenyesi (chair) and S.F. Duffy (vice-chair); 3-6 June 1991; Orlando, Florida.


      2. "Ceramic Matrix Composites," Session 44 - 33rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference; S.F. Duffy (chairman); 12-13 April 1992; Dallas, Texas.


      3. "Life Prediction Methodologies and Data for Ceramic Materials in Advanced Technology Applications - A Basis for Standards," An International Symposium Sponsored by ASTM and the American Ceramic Society; C.R. Brinkman (chairman) and S.F. Duffy (co-chairman); January 12, 1993; Cocoa Beach, Florida.


      4. "Life Prediction Methodologies and Data for Ceramic Materials," Session #102 - International Gas Turbine and Aeroengine Congress & Exposition; S.F. Duffy (chair) C.R. Brinkman (vice-chair); 5-8 June 1995; Houston, Texas.


      5. "Fatigue and Creep of Materials," Session #RSAFP - 2; 11th Biennial Conference on Reliability, Stress Analysis, & Failure Prevention; S.F. Duffy (chair); 17-20 September 1995; Boston, Massachusetts.


      6. "Life Prediction Methodologies Ceramic Materials," Session # - International Gas Turbine and Aeroengine Congress & Exposition; S.F. Duffy (chair) J.P. Gyekenyesi (vice-chair); 5-8 June 1996; Birmingham, U.K.


      7. 27th Annual International Conference on Advance Ceramics & Composites and Electronics Division Meeting, January 26 through January 31, 2003, Symposium I: Mechanical Behavior and Design of Engineering Ceramics and Composites, Session Chair – "Weibull Strength-Size-Scaling, Data Interpretation."

      STUDENT DISSERTATIONS AND THESES

      1. "An Interactive Reliability Model for Whisker-Toughened Ceramics," J.L. Palko, Masters Thesis, Cleveland State University, 1992.


      2. "Modeling Size Effects and Numerical Techniques in Structural Reliability Analysis," J. Hu, Masters Thesis, Cleveland State University, 1994.


      3. "An Isothermal Fatigue Life Study Of A Woven Polymer Matrix Composites," A. Gyekenyesi, Doctoral Dissertation, Cleveland State University, 1997.


      4. "A Viscoplastic Constitutive Model for Ceramic Materials," L. Janosik, Masters Thesis, Cleveland State University, 1998.


      5. "The Need to Heat Treat Flash Welded 300M Tube Prior to Destructive Testing," S. Maitland, Masters Thesis, Cleveland State University, 2001.


      PROFESSIONAL SOCIETIES

      Member of the American Ceramic Society (ACerS)

      Member of the American Society for Testing Materials (ASTM)
      Technical Committee - C 28 Advanced Ceramics
      Chair - Sub-committee C 28.02 Reliability

      Member of the American Society of Civil Engineers (ASCE)
      Secretary (Executive Committee) National Transportation Security Committee
      Cleveland Section Board Member
      Cleveland Section Newsletter Editor

      COURSES TAUGHT

      Graduate Courses

      Undergraduate Courses

      Reinforced Masonry Design
      Advanced Strength of Materials
      Structural Reliability
      Continuum Mechanics
      Elasticity
      Deep Foundation Design
      Plasticity
      Fracture Mechanics
      		Machine Analysis
      Statics
      Dynamics
      Strength of Materials
      Surveying & CAD Principles
      Surveying Lab
      Steel Design
      Soil Mechanics
      Foundation Design