Mechanical Engineering

Vahid Zanjani-Zadeh

Cell phone: ***- ***- **** Email: *******@****.***

Goal: To obtain an research or engineering position with a dynamic and growing company

where I can use my experimental, analytical and computer skills to solve advanced

engineering challenges.

Educational Background

Ph.D. in Civil Engineering-Structure and Mechanics (2013-08)

North Carolina State University (Raleigh, NC)

“Nanomechanics and Multiscale Modeling of Cementitious Materials”

M.Sc. in Civil Engineering-Structure and Mechanics (2009-08)

University of Akron (Akron, OH)

M.Sc. in Civil-Earthquake Engineering and Dynamics (2005-08)

International Institute of Earthquake Engineering and Seismology (Tehran, Iran)

B.Sc. in Civil Engineering (2003-09)

University of Science and Technology (Tehran, Iran)

Areas of Expertise

Micromechanical Characterization of Porous and Heterogeneous Materials, e.g. (Shale,

Carbonate rocks, Cements, Ceramics…)

Determining material structure and composition, Ability of interpret data from nanoscale testing techniques,

image analysis.

Fracture Mechanics, Continuum mechanics, Plasticity

Crack propagation, Stress concentration analysis, Micro cracks, Constitutive modeling of porous materials.

Multiscale Modeling

Using micromechanics for upscaling, Scale bridging, and macro -mechanical properties prediction.

Numerical Simulation

2D/3D linear and nonlinear Finite Element modeling. Pre and post processing FE packages.

In-depth understanding on ABAQUS and ANSYS functionality including: Abaqus/CAE, Abaqus/Explicit,

buckling, contact, composites, element selection, fasteners, fracture mechanics, geometry import and

meshing, plasticity.

Structural Dynamics

Time history and spectrum analysis, Modal analysis, Probabilistic analysis.

Work Experience

Consultant Engineering Company, Istaguya, Iran 200*-**-****-**.

Finite element linear and nonlinear analysis and modeling of structural systems.

Key projects include:

Finite Element static and dynamic (Time history, Spectrum) analysis of structural frames combined

with shell elements using ETABS, and SAP.

Finite Element analysis of underground water and oil tanks for soil and liquid static and dynamic

pressure using ANSYS and SAP.

Analysis & design of long and short span truss and shell structures using SAP and ABAQUS.

Nonlinear pushover analysis of existing structures for rehabilitation purpose using SAP according to

FEMA.

Approval of various FEA software models proposed new approaches to problems encountered and

made recommendations for changes in methods, procedures or designs, and drafting of technical

documentation, reports, and responses to letters, faxes, and other forms of commun ication in support of

structural classification.

Developed FE models to determine the structural integrity, improve design, and achieve weight

reduction.

Evaluated the geotechnical reports for foundation and retraining wall design and safety.

BIDEC, Innovative Engineering Company, Iran, 2007-09~2008-08.

Senior analyzer and checker of complex industrial structures.

Key projects include:

Design & analysis of platforms for oil and gas equipment using SAP and ABAQUS.

Designing equipment foundation using soil dynamics, e.g. cooling water foundation.

Design & analysis of pipe racks using SAP.

Checked the structural drawings and specification for dimension correctness and structural detailing in

a major offshore steel facility.

Managed and approved shop drawings for steel elements and prefabricated trusses.

Provided support to designers, draftsmen, and construction personnel to ensure compliance with

technical specifications and codes requirement.

Material inspection for possible corrosion or chemical deterioration in a steel facility.

Academic Experiences

Deconvolution analysis to extract active phase properties in heterogeneous materials (NCSU, 2009-

2010).

Robust Matlab programming was developed to extract distinct phases and their mechanical properties from

nanoindentation results. The method can be used in extracting different phase properties in geomaterials.

Nanoscale mechanical characterization of Woodford Shale sedimentary rocks (NCSU, 2010-2012).

Massive Nanoindentation, and SEM analyses were performed on the Shale materials, Nano-mechanical

morphologies were identified with statistical analysis, Nanoscale mechanical properties was linked to

macro-scale properties through multi-scale modeling.

Nano-mechanical characterization of Carbonate rocks (NCSU, 2011 -2012).

Nano-mechanical morphology of two types of Carbonate rocks from Western Australia was identified with

Nanoindentation and statistical analysis, Different phases mechanical properties were extracted, mapped

and matched with SEM images.

Intrinsic nano-scale mechanical properties of intact and high temperature damaged cement based

materials (NCSU, 2009-2013).

Intrinsic nano-scale mechanical properties (hardness, modulus, and plastic energy) was found, Influence of

elevated temperature on concrete microstructure was accurately analyzed.

Multiscale modeling of heterogeneous materials (NCSU, 2012 -2013).

Multi-scale modeling for heterogeneous materials from nano to macro -scale using micromechanics was

developed and the results were validating with macro-scale tests.

Constitutive elastic and plastic modeling for metals using Matlab programming (NCSU, 2010).

The response of the stainless steel under different loading cases was examined using robust algorithm for

different yield criteria, flow rules and both isotropic and kinematic hardening.

Developing FE model for structural health monitoring of RC bridges using ABAQUS (UA, 2008-2009).

Developed full scale finite element modeling of RC bridge for dynamic analysis, dynamic response was

validated with experimental results.

Finite element modeling of retrofitted RC columns with glass fiber reinforced polymer Using ANSYS

(IIEES, 2004-2005).

Developed a confinement model for RC columns wrapped with fiber polymers to use in FE modeling in

ANSYS, materials were assumed to be elasto-plastic, failure analysis was performed.

Compression buckling behavior of 7075 -T6 Aluminum skin stiffened panels fabricated by friction stir

welding and rivets using ABAQUS (UA, 2008 -2009).

Investigated the buckling, post-buckling and fracture behavior of two types of skin stiffened panels

connections to improve the buckling behavior of skin stiffened panels.

Academic Distinctions

Best presentation award, 13th Symposium of structural engineering and mechanics (NCSU, Mar. 2013).

NSF travel grant to workshop on Multiscale modeling of cementitious materials in Poland, Oct. 2012.

Tuition Scholarship, North Carolina State University, 2009~201 3.

Tuition Scholarship, University of Akron, 2008~2009.

Monbukagakusho (MEXT) Scholarship finalist, Japan government, 2007.

Top M.Sc. student at IIEES (top 5%).

Top five research projects, Earthquake Engineering Association, Iran, 2007.

Graduate Courses

M.Sc.: Advanced engineering mathematics, Finite element analysis I&II, Plasticity, Computer methods in

engineering, Mechanics and application of fiber polymers in CE, Risk analysis and seismology, Advanced

earthquake engineering and vibrations, Structural dynamics, Soil dynamics, Structural stability.

Ph.D.: Continuum micromechanics, Fracture mechanics, Constitutive modeling of engineering materials,

Advanced solid mechanics, Mathematical and experimental modeling of physical processes, Smart materials

and structures, Numerical methods in CE, Probabilistic methods for engineers, Advanced topics on concrete

microstructure, Scanning electron microscopy, Advanced materials experiments.

Computer Skills

MATLAB (Programming), ABAQUS (Standard, Explicit), ANSYS, ETABS, SAP (Nonlinear analysis), SAFE,

Mathcad, Maple, AUTO CAD, Microsoft Office.

Instrument Skills

Nanoindenter, Nanoscratcher, Atomic Force Microscopy, Scanning Electron Microscop y, Large scale force

actuators.

Certificates, Academic services and Memberships

Structures Rehabilitation Certificate according to FEMA 273, 274, 356 and 357 from Management a nd

Planning Organization, Iran, 2007.

Co-Chair in 12th Structural Eng. & Mechanics Symposium at North Carolina State University, 2012.

Reviewer in KSCE Journal of Civil Engineering.

Membership in ASCE, ACI, IEEA, ICI, ISSA, and ICEO

Teaching Experience

Theory of Structures, Mechanics of Solids, 2008-08~2009-08 at UA (TA).

Solid mechanics: 01-2012~05-2012, 01-2013~05-2013. Statics: 08-2011~12-2011, 08-2012~12-2012,

at NCSU (TA& Tutor)

Recent Publications

Journal Papers

[1] “Nanoscale mechanical properties and multi-scale modeling of Carbonate rocks”, 2013, Under

Preparation.

[2] “Nano-mechanical properties of Kenaf fiber reinforced concrete using nanoindentation” Cement

and Concrete Composites, 2012, under review.

[3] “Nano-mechanical characteristics of lightweight aggregate concrete containing supplementary

cementitious materials exposed to elevated temperature”, Construction and Building Materials,

2013,Under Review.

[4] “Nanomechanical investigation of internal curing effects on sustainable concretes with absorbent

aggregates” ASCE Journal, Poromechanics V, pp. 1625 -1634, July 2013.

[5] “Nanoscale mechanical properties of concrete containing blast furnace slag and fly ash after and

before thermal damage, Cement and Concrete Composites, Vol.37, pp.215-221, March, 2013.

[6] “Retrofit of slender square concrete columns by glass fiber -reinforced polymer for seismic

resistance”, Iranian Science and Technology Journal, Vol. 32, No.B5, pp.437-450, 2008.

[7] “Finite element modeling of retrofitted reinforced concrete columns with glass fiber reinforced

polymer”, Scientific Research Journal of Sharif University of Technology, No.40, pp. 21-28, winter

2008.

Conference Papers

[8] “Nanomechanics and multiscale modeling of sustainable concrete” Multiscale modeling in

cementitious materials workshop, Krakow, Poland, Oct., 2012.

[9] “Natural fiber reinforced concrete: Microstructure, internal curing, and mechanical properties from

nanoindentation and macroscopic testing,” ASCE Engineering Mechanics Institute Conference, Los

Angeles, CA, August 2010.

[10] “Analytical study on strengthening of plastic hinge region of R.C columns with CFRP wraps”, 8th

International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures, Paper

ID: 10-12, Patras, Greece, 16-18, July, 2007.

[11] “Cyclic behavior of slender R.C columns with insufficient lap splice length”, 14th World

Conference on Earthquake Engineering (14WCEE), Paper ID: 12 -03-0004, Beijing, China, 12–18,

October, 2008.

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