Experts
EXPERTLY ORCHESTRATED GENIUS
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Resume of QFC, P.E.
Consultant
PRINCIPAL INDUSTRIES SERVED
- Aerospace
- Biomedical
- Dams
- Nuclear
- Offshore Structures
EDUCATIONThis expert has a M.S. in Structural Engineering and Structural Mechanics from the University of California, Berkeley.
This expert received a B.S. in Civil Engineering from the University of California, Davis (Highest Honors). EXPERTISE AND SERVICESStructural and Failure Analysis Expert Consultant ResumeThis expert specializes in medical implant device design and analysis, biomedical consulting, and stent analysis. Further expertise includes stress analysis on both balloon expanded and self-expanding FDA approved stents, stainless steel, and elgiloy and nitinol shape memory alloy stent analysis.
This associate is an expert in areas including thermal-structural analysis applications using the finite element method, structural engineering applications for aerospace, biomedical, and dams. Further experience includes nuclear and offshore structures, geometric and material nonlinear static and dynamic analyses to evaluate the strength, stability, and structural fatigue life.
Additional experience and specialization of this consultant includes race car piston thermal-stress analysis, manufacturing process improvement, assembly process simulation, and material plasticity. Other related experience includes large concrete dam stability, friction and interference fit of large roller bearings, airplane seat back integrity, material fracture failure, and failure assessment of nuclear spent fuel assemblies. Other failure analysis fields include static, pseudo dynamic and time history seismic analysis, fracture mechanics, and arctic oil exploration rig design.
This expert has conducted numerous studies in areas including RV shell structure stress analysis, fatigue analysis for offshore operations, concrete dam crack propagation, and shipping cask containment requirements. Further studies include concrete gravity dam cracking analysis, spent fuel subjected to regulatory transportation accidents, concrete gravity dam stability during and after an earthquake, and RCC dam thermal-structural analysis. Other related studied were specific to battery cell assembly simulation, design cycle of nitinol devices, and super elastic alloy eyeglass frame design.
PROFESSIONAL EXPERIENCEConsultant, Kevin Kennedy Associates Inc. Providing civil engineering, structural engineering, consulting, failure analysis, forensic engineering and related expertise to a wide variety of clients. Structural Engineer, Civil Engineer, Engineering Consultant Medical Implant Devices - Provided stress calculations for over 15 manufacturers of Stents. Analyses required very large deformation analyses and highly nonlinear material response. Materials included a variety of Steels as well as Nitinol Super Elastic Shape Memory Alloy. Geometry changes can be as much as 10 fold.
Concrete Containment Building – Developed parametric model to simulate the structural response of cutting a hole in the side of a post-tensioned concrete containment building. The construction sequence of de-tensioning, removing the hole, patching the hole and re-tensioning was simulated in ANSYS 6.1.
Race Car Piston – Developed parametric model for the thermal-stress analysis of a race car piston. Model included temperature dependent transient analysis simulation including large deflections, and contact.
Camera & Hearing Aid Batteries - ANSYS FEA used to simulate the crimping processes of the assembly line. Critical manufacturing variables were evaluated and optimized to reduce the design cycle of new products. Insights gained from the analyses helped resolve material selection, component sizing and tooling issues.
ANSYS capabilities utilized include large deflection; surface-to-surface and rigid surface contact and material plasticity. Animation files simulating the assembly process were used to debug the analysis as well as demonstrate the analysis results to the immediate contact and upper management.
Concrete Dams - 3-D Stability evaluation of large concrete dams. ANSYS is used in conjunction with macros developed by the associate to automate the evaluation of cracking along the dam-rock interface.
Large Roller Bearings - Performed 3-D contact analysis to evaluate the effects of friction and interference fit on the interaction between sleeves and the roller shaft.
Airplane Seat - Performed detailed analyses of composite airplane seat backs to evaluate the efficiency of current designs. ANSYS composite shell elements were used in conjunction with in-house programs to evaluate the integrity of the seat back on a layer-by-layer basis. Senior Engineer, ANATECH Research Corp., San Diego, CA Led the development of a nonlinear finite element program for Sandia National Labs used to evaluate the probabilistic failure assessment of nuclear spent fuel subject to transport loading conditions in Transport Casks. Non-linear dynamic response of spent fuel assemblies are computed, failure modes and frequencies are predicted for both ductile and material fracture failure modes using probabilistic techniques. Related work including co-authoring an EPRI reports on “Fuel-Assembly Behavior under Dynamic Impact Loads Due to Dry-Storage Cast Mishandling”. Provided structural analysis review of the B&W BR-100 Final Design Report.
Led the development of a special purpose nonlinear finite element code CG-DAMS for analyzing the strength and stability of concrete dams. This program was sponsored by the Electric Power Research Institute and is currently used by several utilities. The special purpose program includes static, pseudo dynamic and time history seismic analysis capabilities. The program incorporates the UMAT concrete model developed by Anatech Research Corp. Served on the EPRI Dam Safety Committee and was involved in the review process of the Army Corps of Engineers guidelines on fracture mechanics. Has performed analyses or consulted on FERC submittals for Georgia Power, Duke Power, Southern Company Services and Pacific Gas and Electric Company. Has also interfaced with US Bureau of Reclamation, BC Hydro, FERC, New York Power Authority, etc.
Served as the technical representative for the ANSYS general-purpose finite element program. Senior Engineer, Earl & Wright Consulting Engineers, San Francisco, CA Led the finite element analysis group in the design of the first North American Tension Leg Platform. Also led the analysis group of 5 engineers in the design of a mobile arctic oil exploration rig.
Served as the technical representative for the ANSYS general-purpose finite element program. Staff Engineer, Robert L. Cloud & Associates, Berkeley, CA Research Engineer, Pacifica Technology, San Diego, CA ADDITIONAL EXPERIENCEADDITIONAL EXPERIENCE
Has taught over 100 ANSYS training classes over the last 12 years, with a large number to General Electric and Pratt & Whitney engineers in the gas turbine business. Classes range in duration from 1 to 5 days and range in students from 5 to 25. Class format includes a mixture of finite element theory, nonlinear analysis, applied methods, demonstrations and hands-on exercises. PUBLICATIONSNumerous publications on topics related to RV shell structure stress analysis, fatigue analysis for offshore operations, finite element analysis, concrete dam crack propagation, shipping cask containment requirements, concrete gravity dam stability analysis, concrete gravity dam cracking analysis, spent fuel subjected to regulatory transportation accidents, concrete gravity dam stability during and after an earthquake, RCC dam thermal-structural analysis, battery cell assembly simulation, design cycle of nitinol devices, super elastic alloy eyeglass frame design, and more
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