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John J.Tierney
Research Associate
109 Composites Manufacturing Science Laboratory
University of Delaware
Newark, DE 19716-3144
Phone: (302) 831-0548 | Fax: (302) 831-8525
Email: tierney@ccm.udel.edu
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Research Interests: Composite materials, simulation and design
of composites manufacturing processes, experimental mechanics, fracture
mechanics, residual stress and warpage analysis, joining, induction lamination,
automated tow placement, fusion bonding, software development for composite
manufacturing processes.
Executive Summary
Currently conducting on ongoing research program on design
and manufacture of composite overwrapped gun barrels for the U.S. Army.
Other areas of work include design and optimization of a continuous induction
based lamination processes for carbon based thermoplastics, development
of generic design tools for composite cylinder analysis, heat transfer
and quality development in the Automated Tow Placement process and development
of new processes for manufacturing composite based structures.
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Education
Ph.D. University of Delaware, 2003.
B.E. (mech) University College Galway, Ireland 1994.
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Professional Activities
Journal Reviewer: Journal of Thermoplastic Composite Materials, Composites:
Part (A), and Journal of Composite Materials.
Center for Composite Materials Spring research review organizer.
President of University of Delaware’s International Student Organization:
The Cosmopolitan Club 1999-2000
Member of Engineering Society of Ireland.
Member of American Society of Materials, American Society of Composites.
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Awards & Patents
Center for Composite Materials Achievement Award 1998.
University of Delaware Honors Award 1998.
University of Delaware Event Activities Award in 1999 for organization
of international events at the University
"Process for Induction Lamination of Electrical Conductive Fiber
Reinforced Thermoplastic". Date of Invention: 08/16/1999. Filed for
patent application. 07/24/01. Approved 09-20-02.
"Apparatus for Induction of Electrically Conductive Fiber Reinforced
Thermoplastic". Date of Invention: 08/16/1999. Filed for patent application.
07/24/01. Approved 09-20-02.
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Books and Book Chapters
Tierney, J. J., J. W. Gillespie Jr., and P-E. Bourban, “Joining
of Composites,” Chapter in Volume 2, Polymer-Matrix Composites,
Comprehensive Composite Materials, Pergamon, Elsevier Science Limited,
2001.
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Recent Journal Publications
John Tierney, J. W. Gillespie Jr., “Modeling of Heat Transfer
and Void Dynamics for the Thermoplastic Composite Tow Placement Process”,
accepted, Journal of Composite Materials, Technomic Pub. Co. 2003
John Tierney, J. W. Gillespie Jr., “Modeling of In-Situ Strength
Development for the Thermoplastic Composite Tow Placement Process”,
to appear, Journal of Composite Materials, Technomic Pub. Co. 2003
John Tierney, J. W. Gillespie Jr., “Crystallization Kinetics Behavior
of PEEK Based Composites Exposed to High Heating and Cooling Rates:, to
appear, Composites Part (A), Elsevier Publishing Co. 2003
Heider D., Tierney, J. J., Michael J. Piovoso, and John W. Gillespie
Jr., “Artificial Neural Network Modeling of the Automated Thermoplastic
Composite Tow-Placement system” in Journal of Materials Processing
and Manufacturing Science, Vol. 7 No. 4 pp. 360-379, 1999.
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Recent Conference Papers
Tierney, J. J. Yarlagadda, S., Shevchenko, N., D. Heider, Gillespie, J.
W Jr., “Rapid Automated Induction Lamination (RAIL) of Carbon/Thermoplastic
Laminates: Process Optimization and Prove-out”, Accepted for SAMPE/JEC
Europe Conference, Paris March 2000.
Tierney, J. J. Yarlagadda, S., Shevchenko, N., D. Heider, Gillespie,
J. W Jr., “Rapid Automated Induction Lamination (RAIL) of Carbon/Thermoplastic
Laminates: Factory Implementation and Prove-Out”, Accepted for SAMPE/JEC
Japan Conference, 2001.
Tierney, J. J., Heider D., J. W. Gillespie Jr., N. B. Shevchenko, B.
K. Fink, “Rapid Automated Induction Lamination (R.A.I.L) for High-Volume
Production of Carbon/Thermoplastic Laminates,” Proc. SAMPE-ACCE-DOE-SPE,
MidWest Advanced Materials and Processing Conference, Sept 12-14, Dearborn,
MI, 2000, pp 393-402.
Tierney, J. J., S. Quirico, and J. W. Gillespie, Jr. Development of Material
Quality during the Automated Tow Placement Process, American Society for
Composites 13th Annual Technical Conference, Baltimore, Maryland 1998.
Tierney, J. J., Gillespie J. W. Jr. "Control of Warpage and Residual
Stresses during the Automated Tow Placement Process" 43rd International
SAMPE Symposium/Exhibition 1998 Anaheim, CA.
Tierney, J. J., Gillespie, J. W. Jr. "Control of Warpage and Residual
Stresses during the Automated Tow Placement Process" ANTEC'98 Atlanta
GA.
Tierney, J. J., D. Heider, R. C. Don, K. Steiner. J. W. Gillespie. "Welding
of Thermoplastic Composites using the Automated Tow Placement Process:
Modeling and Control" ANTEC’97, Toronto Ontario.
Tierney, J. J., Rushad F. Eduljee, J. W. Gillespie. " Residual
Stress and Warpage Development during the Automated Tow Placement Process".
Proceedings of the 11th Technical Conference on Composites, American Society
for Composites, Atlanta, Georgia. 1996.
Tierney, J. J., Rushad F. Eduljee, J. W. Gillespie. "Material Response
during Robotic Tow Placement of Thermoplastic Composites". Society
of Automotive Engineers/ Engineering Society of Detroit. Detroit, Michigan,
1995.
Tierney J. J, J. W. Gillespie. "Process Quality and Dynamics in
the Automated Tow Placement Process". Proceedings from the Annual
Composites Symposium, University of Delaware, 1995.
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