Arash Nasr FEA Capabilities
-
Upload
arash-m-nasr -
Category
Engineering
-
view
563 -
download
3
Transcript of Arash Nasr FEA Capabilities
FINITE ELEMENT ANALYSIS CAPABILITIES
ARASH NASR
FE TechniquesFE ModellingPre-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
FE TechniquesDynamic 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
FE TechniquesMaterial Plasticity ModellingApplied 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
FE TechniquesComposite MaterialsModelling 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)
FE TechniquesFracture MechanicsECA 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
FE TechniquesMaterial 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
FE TechniquesMaterial Damage/Failure Modelling in ConcreteConcrete 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
FE TechniquesGeotech Simulations
Modelling Soil Behavioure:
▪ Pore Pressure
(Saturated/Unsaturated )
▪ Settlement
▪ Failure Analaysis
(Mohr-Columb)
Experience :
Pile-Soil Interaction, Foundation Settlement (Saturated\Unsaturated)
Consolidation Simulation for saturated soil
FE TechniquesBuckling 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
FE TechniquesFatigue Assessment
Fatigue Life Assessment:
▪ High Cycle▫ Determnistic
▫ Spectral
▪ Rainflow Calculations
▪ Low Cycle
Experience :
Fatigue in Pipeline Buckling, Pipeline spans, Offshore Structures, Ships
SCF Determination
FE TechniquesThermal 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
FE TechniquesPost 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
FE TechniquesOthers…
Other Techniques:▪ Complex Contact Simulations ▪ Submodelling▪ Substructuring
Experience :
Pipeline-Seabed Analysis, Spool Analysis, Structural Integrity Assessments
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
▪ Verification\Validation of models in world-class
projects
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)
Thanks!You can find me at:
https://twitter.com/ArashNasrWork