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OBJECTIVE:
I enjoy all research involving structural
mechanics and advanced lightweight structures,
especially composite materials.
EDUCATION:
University of Florida-
Gainesville, FL
GPA 3.75
Ph.D. Mechanical Engineering- May
2006
Research: Finite Element and Experimental
Analysis of Failure of Structural Textile Composites
(Funded by and performed in conjunction with the Army
Research Office)
University of Tennessee- Knoxville, TN
M.S. Mechanical Engineering- May 2000
GPA 3.6
Graduate Coursework: Fundamentals of Polymer
Composites, Composite Mechanics, Mechanics of Solid
Polymers, Continuum Mechanics, Advanced Strength of
Materials, Fracture Mechanics, Differential Equations
II, Partial Differential Equations
Thesis:
"Empirical Modeling of In-Cure Volume Changes and
Elasticity Development of Thermoset Polymers"
Louisiana State University- Baton Rouge,
LA
B.S. Mechanical Engineering- May 1998
GPA 3.6
Senior Design Project: Design, construction, and
experimental testing of a ramjet engine with a system of
monitoring instrumentation
Professional
Societies:
Society for the Advancement of Material
and Process Engineering (SAMPE)
American Society for
Composites (ASC)
American Institute of Aeronautics
and Astronautics (AIAA)
American Society of Mechanical
Engineers (ASME)
EXPERIENCE:
Research and Product Design
Engineer- Ford Motor Company, Dearborn, MI (July, 2000 - January 2003)
·
Performed
experimental research into the crashworthiness of
composite sandwich structures and applicability to
automotive safety structures, including Automotive
Composites Consortium (ACC) collaboration
·
Developed
a patent-pending dynamic occupant classification
algorithm for airbag activation control, with response
time improved by a factor of 10
·
Led
a team of seven engineers in an experimental and
statistical study of the effect of child safety seat
misinstallations on the accuracy of passenger seat
classification systems
·
Created
design methodology utilizing non-linear CAE analysis
to implement heat-weakened aluminum as a structural
crush trigger
·
Participated
in successful Six-Sigma study to improve capability of
installation processes at Wixom Assembly Plant,
resulting in minimized line downtime and repair costs
·
Developed
a benchmarking study of competitive cross-vehicle part
commonization design strategy and proposed strategy
for similar approaches to the Ford product plan
Research Assistant- University of Tennessee,
Knoxville, TN (August, 1998 to May, 2000)
·
Performed
research in the area of polymer composite materials,
including: cure-induced stress analysis,
characterization of environmental degradation
effects, and evaluation of fiber-matrix interface
properties
·
Collaborated
on multi-university research effort in conjunction
with The Boeing Company and the Air Force Research
Laboratory
·
Supervised
and coordinated the work of an undergraduate
research assistant in the area of in-cure monitoring
of polymer composite stiffness development
Intern-
Sandia National Laboratories, Albuquerque, NM (May, 1996
to August, 1996)
·
Developed
modeling parameters for computer modeling of
pressure buildup in oil storage caverns to be used for
safety oversight at several Strategic Petroleum Reserve
(SPR) storage sites
·
Created
a design methodology to facilitate use of new
simulations of horizontal solution mining to be used
for future storage cavern developments
PATENTS:
US 6,697,723 B2 "Occupant Based Frequency
Analysis Algorithm" Feb 2004
PUBLICATIONS:
R.L. Karkkainen, B.V. Sankar, " A Direct
Micromechanics Method for Analysis of Failure
Initiation of Plain Weave Textile Composites,"
Journal of Composites Science and Technology, 66,
p137-150, January 2006.
R.L. Karkkainen, B.V. Sankar, "A Quadratic
Failure Theory for Textile Composites Based on the
Direct Micro-Mechanics Method", submitted Journal
of Composites Science and Technology.
R.L. Karkkainen, B.V. Sankar, "Strength
Prediction of Multi-Layer Textile Composites Using the
Direct Micromechanics Method," ASME International
Mechanical Engineering Congress, Orlando, FL, November
2005.
R.L. Karkkainen, B.V. Sankar, "A Direct
Micromechanical Failure Analysis of Textile
Composites," American Society for Composites,
20th Annual Technical Conference, Philadelphia, PA,
September 2005.
R.L. Karkkainen, B.V. Sankar, "Methods for
Strength Prediction of Textile Composites,"
International Conference on Computational and
Experimental Engineering and Sciences, Chennai, India,
Dec 2005.
R.L. Karkkainen, B.V. Sankar, "Evaluation of
Transverse Shear Effects on Failure of Plain Weave Textile
Composites Using the Direct Micromechanics Method,"
ASME International Mechanical Engineering Congress,
Anaheim, CA, November 2004.
R.L. Karkkainen, B.V. Sankar, "Stress Gradient
Effects in the Failure Criteria for Textile Composites,"
2004 International Conference on Computational and
Experimental Engineering and Sciences, Madeira,
Portugal, July 2004.
R.L. Karkkainen, B.V. Sankar, "Micromechanical
Failure Analysis of Thin Plain Weave Textile
Composites Using the Finite Element Method," 45th
AIAA Structures, Structural Dynamics, and Materials
Conference, Palm Springs, CA, April 2004.
R.L. Karkkainen,
A.C. Caliskan, "Energy Absorption of Composite Sandwich
Structures in Lateral Loading," American
Society for Composites 18th
Annual Technical Conference, CD ROM Proceedings,
Gainesville, FL, October 2003.
B.V. Sankar, B.W. Lee, R.L. Karkkainen,
"Evaluation of Failure Criteria for Plain Weave
Textile Composites Using Finite Element
Micromechanics," 35th International SAMPE
Technical Conference, CD ROM Proceedings, Dayton, OH, September 2003.
B. Franks, M.S. Madhukar, R.L. Karkkainen, J.D. Russell, "A
New Method to Characterize Stiffness Development in Polymers," Society
of Manufacturing Engineers ICCM 2003, CD ROM Proceedings, San Diego, CA,
July 14-18 2003.
R.L. Karkkainen, A.C. Caliskan, W. B. Riley,
"Crashworthiness of Composite Sandwich Structures in
Lateral Loading," proprietary Ford Technical Report.
R.L. Karkkainen, M.S. Madhukar, J.D. Russell,
K.M. Nelson, "Empirical Modeling of In-Cure Volume
Changes of 3501-6 Epoxy," Proceedings of the 45th
International SAMPE Symposium and Exhibition Science of
Advanced Materials and Process Engineering Series, Vol.
45, Long Beach CA, May 21-25, 2000. Society for the
Advancement of Materials and Process Engineering, pp
123-135.
R.L. Karkkainen, "Empirical Modeling
of In-Cure Volume Changes and Elasticity Development of
Thermoset Polymers," M.S. Thesis, University of
Tennessee, Knoxville, TN, 2000.
M.S. Madhukar,
R.L. Karkkainen, and J.D. Russell, "A New
Method to Characterize Stiffness Development and Stress
Relaxation in Polymers" Submitted to Journal of
Materials Research
R.L. Karkkainen, M.S.
Madhukar, J.D. Russell, "Empirical Modeling of In-Cure
Volume Changes of RS-3 and EX-1515 Cyanate Esters"
Submitted to Journal of Materials Research
ADDITIONAL QUALIFICATIONS:
·
Effective
technical writing and oral communication skills
·
Computer
experience using ABAQUS, IDEAS, HyperMesh, RADIOSS,
FORTRAN, AutoCAD, MS Office, MS Windows, and DOS
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