Stress Analyst

ALEXANDER NADAREYSHVILI, Ph.D.

Address: **** ********* ****, *********, **, 40514

cell: 319-***-**** E-mail: *****@****.***,

*********.*************@*****.***

US person

Objectives: Ph.D. Mechanical Engineer with strong computational and

development skills looking for position in industry/national

Lab/Universities.

Professional Profile

. Dynamic research professional with significant and progressive experience

involving innovative engineering analytical skills, finite element

programming skills.

. Goal-driven achiever with strong organizational and analytical skills,

demonstrated expertise in developing new algorithms, and the proven ability

to assume primary role in completing the projects successfully.

. Capable team player with exceptional interpersonal and collaborative

skills to foster performance, along with a demonstrated talent for

analyzing complex programming problems.

. Motivated self-starter with the written communication skills, designing,

developing and implementation skills along with strong work ethic to make a

significant contribution to any organization.

EDUCATION:

Moscow State University n.a. M.V. Lomonosov

Ph.D. (1993-1997)

Field: Engineering & Applied Science

Moscow State Technical University n.a. N. E. Bauman

MS (1982-1988)

Field: Mechanical Engineering

EXPERIENCE:

02/2013-07/07/2014

BELCAN Engineering Corporation.

* Principal Stress Analyst

Projects:

1. Sikorsky S61T, S70, S76 helicopter airframe and rotor components

stress/fatigue analysis.

2. Embraer aircraft sponson analysis

3. Windshield structural analysis (Comac project)

4. Interface loads of shell seat units for Boeing 747, 787 aircraft.

Static Test plan (ZODIAK project)

11/2011-12/2012

Cobham Mission Systems, Davenport, IA, USA

* Sr. Structural/Stress Engineer/R&D

Project1. Air Refueling system (CDS) PDR/CDR project.

Duties: Stress/structural analysis of:

. Hose reel stress and fatigue analysis by FEM and hand calculation

(Bruhn, Nu, Shanley).

. Design optimization of the CDS components.

. KC-46 to CDS interface loads analysis.

. Tools: Pro/Engineer, Nastran/Patran, ANSYS

Project2. Body Fuel Thank (BFT) for KC46 and KC-390 PDR project

Duties: Stress/structural analysis of:

. BFT stress and fatigue analysis by FEM and hand calculation based on

the Boeing Design Manual.

. KC-46, KC-390 to BFT interface loads analysis.

. Buckling, crippling, strength analysis of the panel (stiffeners,

honeycomb structures).

. Tools: Pro/Engineer, Nastran/Patran, ANSYS.

05/2010-09/2011

The Center for Computer Aided Design, University of Iowa (Iowa City, IA)

* Postdoctoral Research Scholar.

Project 1. Image based stress analysis of coiled brain aneurism:

Duties: Principal executor of research projects (managed by Faculty and

MD). 2 graduate students consulting

scholar.

. 3DRA Image analysis of coil occluded aneurism growth: reconstruction

of aneurism and coil mass geometry (3D-Slicer).

. Computer Aided Stress Analysis of aneurism based on "coil mass-blood"

interaction (ANSYS)

. Generation of publication [1]

Project 2. Computer Aided stress-strain and buckling analysis of the aortic

graft stent.

. Development of experimental method to determine a graft stent buckling

pressure.

. Computer Aided stress-strain and buckling analysis of graft stent (Pro-

Engineer, ANSYS). Mutual conformation of simulation and experiment

. Generation of publication [2]

11//2008 -05/2010

The University of Iowa (Iowa City, IA)

* Visiting Scholar

Project: Image-based simulation of heart valve dynamics.

Duties: Principal executor and co-developer of the new numerical method of

computer simulation. Collaboration

with 2 co-investigator-faculties.

. CT Image analysis of heart valves: reconstruction of point cloud model

of the heart valves. (MatLab)

Development of the Matlab programming code:

1. To employ a simple gray-scale-based binary segmentation method of

extract points from CT image.

2. Point connectivity and Discrete surface algorithm to form of the

point-cloud model of biomechanical system.

3. Integrate the developed Matlab code to the FEAP code.

. Development of new numerical technics of integration of Hamiltonian

system based on discrete-gradient method (DGM). (FEAP code)

. Computer Aided Stress Analysis heart valves dynamics by new DGM

development.

. Generation of publication [3,4]

. An extension of this method would be useful for crack and damage

analysis.

06/2005-11/2008

"Progresstech" ltd. (Moscow, Russia)

*Sr. Stress Engineer

Project : Fuselage/wing/nose section/cabin stress and fatigue analysis of

the airplane SuperJet 100;

Nose Landing Gears Static analysis. Mount loads by MSC

ADAMS. Hand calculation.

Project owner: Company "SUKHOY"

Duties: 3 junior stress engineers team management

. Analysis of fuselage/wings frame/skin designed construction (CATYA 5)

. Analysis and sort out of finite element models of whole fuselage/wing

construction

. Performance of static FEA calculation (NASTRAN/PATRAN) of global

airplane model for all loading cases.

. Hand calculations (members, fasteners, joints, etc.).

. Select the most stressed zones based on FEA analysis and engineering

intuition.

. Performance of Global-Local FEM static stress analysis most stressed

zones (ribs, notch, fitting) to determine stress concentration.

. Fatigue analysis (MSC Fatigue, specific methods).

. Stress analysis report generation.

. Checking of reports (FEA and conventional analysis) generated by

another stress engineers.

01/2000- 06/2005

Mechanical-Engineering Research Institute, Russian Academy of Science.

(Moscow, Russia)

*Senior Scientist

Project 1. Strength analysis of protective concrete construction of nuclear

reactor during technogeneous disasters.

Project owner: Ministry of Nuclear Energy of Russia.

Duties: 3 junior research scientist team management.

. Development of High speed deformation visco-elasto-plastic material

model of armo-concrete material

. Development of FE (LS-DYNA incorporated) numerical algorithm of

simulation. Verification of the model by test problem and laboratory

experimental results.

. Numerical simulation of nuclear reactor's protective shell failure at

airplane crash and explosion of nuclear reactor. Stress and damage

analysis of the protective shell.

. Report generation. Publication [5-7]

Project 2. Static and Dynamic stress-strain analysis of tire (military

application)

Project owner: Ministry of Defense of Russia

Duties: Principal executor.

. Development of mathematical model: Nonlinear governing equations of

tore shell deformation

. Analytical solution of governing equations (static case)

. Computer Aid determination of dynamic load by tire-road surface

interaction analysis (ADAMS).

. Dynamic stress-strain analysis: development of numerical integration

method of Nonlinear Governing equations

. Report generation.

Project 3. Erosive failure of turbojet blade under hydraulic loading of

fluid colliding particles. Application to the turbojet PS-90A2.

Project owner: Company "Aerodvygotel" ltd.

Duties: 3 junior research scientist team management

. Development of mathematical model: Governing equations of fluid-solid

impact dynamics.

. Development of numerical integration method of governing equations.

Analysis of convergence and accuracy of numerical method.

. Lab. experiment of erosive failure of aluminum samples.

. Test problem. Model verification: comparison with test problem lab.

experimental results

. Applied problem: Erosive failure of turbojet blade.

. Stress analysis and optimization of blade and disk of turbojet PS-

90A2. Durability analysis.

. Report generation. Publication [8]

Project 4. Mathematical modeling of eye damage at impact interaction with

splinter.

Duties: Principal executor. Collaboration with 2 lead scientists.

. Computer Aided (LS-DYNA) analysis of penetration of splinter through

the eyeball. Definition of mechanical and physical conditions of

damage of eyeball based on stress-strain analysis of cornea and

sclera.

. Publication [9].

Project 5. Dumping role of the cerebral ventricles at impact loading

Duties: 2 junior research scientist team management

. Development of experimental device and methods of measurement to

determine share deformations in gel-based structural analog of brain

tissue.

. CT image-based reconstruction of skull-brain geometry and FE meshing.

. Computer Aided (ABAQUS) stress-strain analysis of brain model:

optimization of constitute model of brain tissue based on the

experimental results

. Publication [10]

Project 6. Optimization of the anchor for pre-stressed armo-concrete

construction

Project owner: Company "CTC"

Duties: 2 junior research scientist and 1 research assistant team

management

. Development of anchor geometry (Autocad).

. Development of experimental tools and methods of measurement of the

"anchor-concrete" deformation.

. Computer Aided Stress-strain analysis of "anchor-concrete". Correction

of the computational model.

. Constructional parametric optimization of anchor in pre-stressed "armo-

concrete" (ANSYS).

. Experimental Stress-strain test of Anchor.

. Generation of report. Publication [11].

Project 7. "Chernishevsk-Altia" Gas pipeline Dynamic& Strength analysis.

(170 km. Diameter 820 mm)

Project owner: Company "RosneftGasSrtoy" (Oil & Gas Industry)

Duties: Principal executor.

. Development FE model of the Gas pipeline. (ANSYS)

. Modal/Frequency analysis.

. Pipeline-ground interface loads.

. Joint stress analysis.

. Generation of report.

09/1997-11/1999

S. Rustaveli State University. (City of Batumi, GEORGIA).

*Lecturer

Duties: Teaching of Course of Discrete Mathematics: numerical method in

mechanical engineering

Teaching of 2 classes of 25-100 undergraduate students.

09/1988 -12/1992

Rocket Space Corporation Energy". (Korolov, Moscow Sub.,Russia)

*Mechanical/stress Engineer-Researcher

Duties: stress analyst.

. Stress analysis of orbital space stations (whole construction): 3D

beam based frame structure static and dynamic analysis.

. Hand and computer calculations. Experimental data processing of

dynamic response of the space station. Correction of the computational

model.

. Generation of reports

SKILLS:

Analysis: 3D Non-linear Finite Element Analysis, Stress-strain Analysis,

Fatigue and durability Analysis, Finite Element Programming, Metal Forming

Processes, Composites, Contact Mechanics, Thermo-mechanical (Stress and

Heat Transfer) Analysis, Large Strain Analysis, Mesh Generation Techniques

Programming: Fortran 90, C++

Software: LS/DYNA3D, ANSYS, COSMOS, ABAQUS, PATRAN/NASTRAN, FEMAP, Icepak,

Marc, Adams, nCode, MS Office, AutoCAD, Operating Windows and UNIX, Pro-

Engineer, Solid Work. CATIA 5, MatLab, 3D-Slicer

Languages: Fluent Russian, Georgian

AWARDS:

1. Fulbright Grant 2008-2009

2. Grant of the RUSSIAN FOUNDATION FOR BASIC RESEARCH: project # 07-01-

00555-?

3. Grant of the RUSSIAN FOUNDATION FOR BASIC RESEARCH: project # 08-01-

00088-?

4. Diploma of the Best Report of the XV International Conference of Young

Scientists; Moscow, 2003.

SELECTED PUBLICATION:

1. D. Hasan, A, Nadareyshvili, A. Hoppe, M. Raghavan "Aneurism sac growth

as the etiology of cerebral aneurysm recurrence after successful coil

embolization". Journal STROKE, 2012;43:866-868

2. M. Raghavan, A. Nadareyshvili, J. Lu "Planar redial extension for

constitutive modelling of anisotropic biological soft tissues".

International Journal of Structural Changes in Solids, volume 3, number 2,

June, 2011, pp.23-31

3. A. Nadareyshvili, K. Chandran, J. Lu "Image-based point cloud

Hamiltonian dynamic analysis for biomechanical systems" International

Journal for Numerical Methods in Biomedical Engineering. 2011 ;27(10):1507-

1523

4. A. Nadareyshvili, K. Chandran, J. Lu "Imaged-based explicit Dynamic

Simulations in biomechanics". 10th International Conference on Dynamical

Systems - Theory & Application//Lodz, Poland, 2009.

5. A. Nadareyshvili "Mathematical model of post-critical behavior of the 3D

solids at high speed impact dynamical loading". Rare Attractors and Rare

Phenomena in Nonlinear Dynamics// International Symposium RA08, Riga, 2008.

pp. 78-82

6. Nadareyshvili A.I., Petushkov V.A. "Mathematical modeling of nonlinear

deforming and failure process of 3D bodies at high speed interactions";

Mathematical modeling, vol. 16, No 11. pp. 18-24, 2004. Moscow.

7. Nadareyshvili A.I., Petushkov V.A., Frolov K.V. "Mathematical modeling

of bearing capacity and failure of constructions at high-speed impact",

Engineering & Automation Problems, Vol. 1, pp. 3-10, 2004.

8. Nadareyshvili A.I., Petushkov V.A. "Failure of elastic-plastic solid by

high-speed fluid-gas continuum impact"// Journal Math. Simulation, //

Russian Academy of Science, v.12, #10.

9. Nadareyshvili A.I., Petushkov V.A., Frolov K.V. "Mathematical modeling

of eye damage at impact interaction with splinter" Russian Journal of

Biomechanics. 2005, vol. 9, No 4 pages 24-31.

10. Nadareyshvili A.I., Petushkov V.A., Frolov K.V. "Dumping role of the

cerebral ventricles at impact", Russian Journal of Biomechanics. 2006, vol.

10, No 4, pp 31-36.

11. Ananydze G. A., Nadareyshvili A.Y., Petushkov V.A., Frolov

K.V."Optimization of the anchor for pre-stressed armo concrete".

Engineering & Automation problems. No 1, pp. 5-10, 2006.

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