This document outlines Arash Nasr's finite element analysis capabilities and experience. It details his proficiency with various FE techniques including dynamic, plasticity, composite, fracture mechanics, damage, geotechnical, buckling, fatigue and thermal analyses. It lists the software he is experienced with, such as Abaqus, Ansys, and Altair. It also provides examples of projects he has worked on applying these techniques to problems in fields like pipelines, offshore structures, ships and concrete. Finally, it outlines his roles supporting FEA and recent training courses to remain updated on the latest techniques.

1. FINITE ELEMENT ANALYSIS
CAPABILITIES
ARASH NASR

2. FE Techniques
FE Modelling
Pre-Processor Packages:
▪ Abaqus CAE
▪ Ansys WorkBench
▪ SolidWorks
▪ Altair - HyperWorks
▪ Input File Editors
▪ Mathcad , Matlab
Experience :
All the performed FEA
Some of the software I’ve used for
creating input files

3. FE Techniques
Dynamic Analysis
Performing Dynamic Analysis
based on the following
procedures using Abaqus/Ansys
▪ Rigid body motion analysis
▪ Modal Analysis
▪ Modal Response Analysis
▪ Nonlinear Dynamic Analysis
▪ Explicit
Experience :
Blast Analysis, Seismic Analysis,
Pipeline Walking Analysis, Impact
Analysis, Dropped Object Study,
Pipeline Stability, Pipelay
Simulation
Dynamic analysis of a connected
buoyancy tanks with a special joint
between

4. FE Techniques
Material Plasticity Modelling
Applied Plasticity Models:
▪ Isotropic Hardening
▪ Kinematic Hardening
▪ Combined (Isotropic and
Kinematic Hardening)
Experience :
Any Failure Assessment, Buckle
Arrestor Installation Analysis,
Material Strength Test Simulation,
Cyclic Analysis that Involves
Yielding
Uniaxial Test Simulation to adopt
material properties

5. FE Techniques
Composite Materials
Modelling Composite materials:
▪ Calculating Composite material properties using
Micromechanics (RVE)
▪ Modelling multiply composite materials in
Abaqus/Patran with LSS or stiffenss matrices
▪ Performing dynamic and buckling Analysis
▪ Failure analysis using Tsai-Wu Criterion
▪ Viscoelasticity (creep)
▪ Discrete Damage Mechanics and Delamination
Experience :
Blades in wind turbines (multiply fiber epoxy bonded)

6. FE Techniques
Fracture Mechanics
ECA and Crack Propagation:
▪ Crack Propagation Study due
to fatigue or strength
failure
▪ Engineering Crteria
Assessmnet for the Pipelines
▪ Fracture toughness and J-
integral determintion using
traditional method ,
eXtended Finite Element
Method (XFEM) , VCCT
▪ Sharp Crack and Blunt Crack
Modelling
Experience :
Pipeline ECA, Crack Propagation
Assessment (Strength), Crack
Propagation Assessment (Fatigue)
Double cantilever test, fibre reinforced
plastic using VCCT method

7. FE Techniques
Material Damage/Failure
Modelling (Metals)
The following damage criteria
were applied when a
discontiniuty and failure was
intended to be simulated:
▪ Ductile Damage
▪ Shear Damage
▪ FLD Damage (Principal Strain)
Experience :
Ship Impact, Blast Analysis, Dropped
Object Study, Punching Test Simulation
From Abaqus , couldn’t put my models

8. FE Techniques
Material Damage/Failure
Modelling in Concrete
Concrete Modelling:
▪ Damage Plasticity
▪ Smeared Cracking
Experience :
Concrete Test Simulation, Concrete
Column Modelling , Concrete Coated Pipe
Failure Analysis
Concrete Beam Test with the T section
under cyclic load

9. FE Techniques
Geotech Simulations
Modelling Soil Behavioure:
▪ Pore Pressure
(Saturated/Unsaturated )
▪ Settlement
▪ Failure Analaysis
(Mohr-Columb)
Experience :
Pile-Soil Interaction, Foundation
Settlement (SaturatedUnsaturated)
Consolidation Simulation for saturated soil

10. FE Techniques
Buckling Analysis
Buckling Analysis as part of
structural Integrity
Assessment:
▪ Eigen Value Analysis
▪ Nonlinear Analysis with
(buckling modes as
imperfection)
Experience :
Buckling Analysis of Structures
Steel Structure Integrity Assessment

11. FE Techniques
Fatigue Assessment
Fatigue Life Assessment:
▪ High Cycle
▫ Determnistic
▫ Spectral
▪ Rainflow Calculations
▪ Low Cycle
Experience :
Fatigue in Pipeline Buckling, Pipeline
spans, Offshore Structures, Ships
SCF Determination

12. FE Techniques
Thermal Analysis
Thermal Analyses:
▪ Steady State
▪ Transient Analysis
▪ Coupled Thermal-Electrical
Analysis
Experience :
Welding Simulation, Coupled thermal-
electrical analysis in Memory-Shape
Alloys, Flange leak analysis
Welding Simulation

13. FE Techniques
Post Processing:
Post-Processig is as essential
as the analysis itself:
▪ Stress/Strain linirization
▪ Optimazation
▪ Design of Experience (DOE)
▪ Parametric Study
Experience :
Shape optimization to maximize the
fatigue life, Determining failure
surface for structural joints, Pressure
Vessels Integrity Checks , Material
Model Adaption

14. FE Techniques
Others…
Other Techniques:
▪ Complex Contact Simulations
▪ Submodelling
▪ Substructuring
Experience :
Pipeline-Seabed Analysis, Spool
Analysis, Structural Integrity
Assessments

15. FE RELATED ROLES
▪ Part of a global forum to prepare best practices
▪ Local Help desk
▪ Actively involved in teaching FEA techniques to the
other colleagues
▪ VerificationValidation of models in world-class
projects

16. TRAINING
Always Commited to be updated, most recent
training courses:
▪ Composite Analysis (NAFEMS)
▪ CFD for Structural Engineers (NAFEMS)
▪ Fatigue and Fracture Analysis (NAFEMS)
▪ Dynamic Analaysis (NAFEMS)
▪ Using Python for Abaqus (Simulia)

17. Thanks!
You can find me at:
a.mnasr@gmail.com
https://twitter.com/ArashNasrWork