GRADUATE THESES SUPERVISED

 

 

Extraction of the forming limit diagram in magnesium microtubes used in stents by modeling the hydroforming process in Abaqus finite element software.(2024)

 

Mechanical behavior analysis of micro-tubes used in fabrication of magnesium stents using the crystal plasticity method (Doctoral Thesis) .(2023)

 

A new method based on crystal plasticity finite element to predict the formability of steel sheets with spheroidal cementites  (Doctoral Thesis) .(2023)

 

Introducing a new SPD based methodology for manufacturing of magnesium microtube .(2022)

 

Experimental and numerical investigations of the effects of grain morphology and crystalline texture on the formability of sheet metals (Doctoral Thesis) .(2021)

 

Development of inverse isogeometric formulations in simulation of sheet metal forming processes (Doctoral Thesis) .(2020)

 

Evaluation of deformation and formability behaviors of the ferritic-pearlitic steel sheets by employing the experimental approaches and micromechanical modeling (Doctoral Thesis) .(2020)

 

Application of multi-stage inverse isogeometric analysis in sheet metal stamping processes(2020)

 

Manufacturing of Magnesium Micro-Tube Using Severe Plastic Deformation Process by Extrusion Equal Channel Angular Pressing Method (EECAP).(2020)

 

 

Manufacturing of Magnesium Micro-Tube Applied to Biodegradable Stents Using Severe Plastic Deformation: Process Cyclic-Compression-Expansion-Extrusion (CCEE).(2020)

 

Investigation of the addendum geometry effects on the part mechanical properties in sheet metal forming.(2019)

 

Analysis of the formability of Sheets of metal by continuum damage mechanics .(2017)

 

Comparison of Nakazima, MK and GTN methods in determination of forming limit diagram of multi-layer sheets.(2017)

 

Using image processing technique for measuring strain and stress in complex sheet metals.(2017)

 

On the effects of strain rate and heat on forming limit diagrams. (2016)

 

Investigation of cooling process and edge effects in sheet metal forming by using the line heating technique. (2016)

 

Determination of heating paths in line heating process to make a specific surface from the initial sheet metal.(2016)

 

Stress gradient plasticity analysis to study size effects considering dislocation sources (Doctoral Thesis) .(2016)

 

Experimental and numerical study of sheet metals formability based on crystal plasticity and presentation of high formability fibers (Doctoral Thesis) .(2015)

 

Investigation and Validation of Combined Turbine and Nozzle Design Changes on performances  (Doctoral Thesis) .(2015)

 

Developng a multi-step Inverse Finite Element Method(IFEM) in sheet metal forming process. (Doctoral Thesis) .(2014)

 

Calculation of output curvature by control of rollers in rolling process. (2014)

Using image processing technique for measuring stress. (2014)

 

The Comparison of M-K and GTN Methods in Prediction of FLD Diagrams. (2014)

Investigation of initial texture effects on the deformation of sheet metals using crystal plasticity theory. (2014)

 

Effects  of  bending on forming limit diagram(FLD) based on Marciniak & Kuczynski method. (2013)

 

Determination of forming limit diagrams using the strain gradient theory. (2013)

 

Minimization of the exit-curvature profile by modeling of the bearing in asymmetric extrusion dies . (2013)

 

Optimization of the positions of holes in multi-hole extrusion dies with unsymmetrical holes for minimization of the curvature of the exiting profile . (2013)

 

Forming of Plate by Line Heating Technique in Shipbuilding Industry. (2013)

 

Blank development of deep drawn single layer composite parts using inverse finite element method. (2012)

 

Estimation of the residual stresses in sheet metal stamping using the inverse finite element . (2012)

 

Optimization of the locations of holes in multihole extrusion dies for minimization of the exit curvature profile and it’s effect on extrusion loads. (2012)

 

Stabilization of finite element analysis of the fluid-structure interaction in micro systems in small time steps(Doctoral Thesis) .(2011)

 

Prediction of dead metal zone and bearing design on the nonsymmetric flat extrusion dies. (2011)

 

Reducing the requirements for calibration and guaranteeing convergence in obtaining Forming Limit Diagrams. (2011)

 

Development of a nonlinear Inverse Finite Element method in strain analysis of sheet metal forming . (2011)

 

Minimization of the exit curvature profile in extrusion dies by optimization of the die profile and application of die land. (2010)

 

Application of the inverse finite element in tube hydroforming (2010)

 

Development of a Model for Hydromechanical deep drawing process to analyze the effects of various parameters. (2009)

 

Consideration of the Normal Stress and Thickness  Effects on Prediction of Forming Limit Diagrams .(2009)

Optimization of the distance between the stations in roll forming  process.(2009)

 

Material Modeling of DIN1.6959 Steel and Determination of Stresses in Autofrettaged Thick-Walled Tubes (Doctoral Thesis) .(2009)

 

Implementation of Strain Gradient Plasticity in Sheet Metal Formability Analysis (Doctoral Thesis) .(2009)

Strain analysis of sheet metal forming parts by inverse finite element method considering the tooling effects.(2008)

 

Effects of sheet metal curvature and number of forming stages in strain distribution on 3D stamped part with inverse finite element method.(2008)

 

Determination of Residual Stresses in Autofrettaged Compound Tubes Prior to Shrink fit.(2007)

 

Simulation of Deep Drawing for General Shaped Parts Using FDM.(2007)

 

Consideration of Strain Path Effects on Prediction of Forming Limit Diagrams.(2007)

 

Developed Blank with Inverse Finite Element Method.(2007)

 

Analysis of Asymmetrical Rolling of Three-Layer Sheets.(2006)

                        Springback Compensation in Tool Design.(2006)

 

Extrusion Design Die by Using Bezier-curves, to Minimize the Exit-curvature Profile in Three-dimensional Off-centric Extrusion Process; Analysis and Experiments.(2006)

 

Grid Analysis Technique and Forming Limit Diagrams.(2005)

 

Bending Die Design to Reduce Spring back in a Plane Strain Process.(2005)

Prediction and Compare of Load in Forward Extrusion of Rod Section with Different Methods.(2005)

 

Evaluation of Forming Severity and Thickness Variation in Deep Drawing of General shaped parts

 

Automatic Design of Bearing Length for Flat Face Extrusion Dies and Evaluation of Tongue Deflection.

 

Optimum Design of Artificial Sphincter by Shape Memory Alloys (Nitinol).

 

Determination of Material flow lines For Optimization of Noncircular Extrusion Dies.

 

An Upper Bound Approach to Pressure Estimation in Hydroforming of Sheet Metal Pairs.

 

Analysis of Deep Drawing Process With the Energy Method and Simulated Annealing Optimization Algorithm.

The Effect of Deep Drawing on the Energy Absorption Capability of Metal Parts.

 

Determination of the Boundary Conditions in Deep Drawing Process to Achieve the Predefined Targets.

Analysis of Backward Extrusion Process By Physical Modeling, Numerical & Analytical Methods.

 

Prediction of the Forming Limit Diagram in Sheet Metals with M-K Method.

 

Producibility Assessment of Aluminum Automotive Panels.

 

Pressure Estimation in Hydroforming of Sheet Metals.

 

Analysis of Sheet Metal Forming in Nosing Process and Preform Design

 

Studies of Parameters in Precision Forging and Design of ?Spark Electrode in Die Making.

 

Modeling of Deep Drawing of General Shaped Parts with Slip Line Field and Energy Method

 

FEM? Analysis of? Residual Stresses in TIG Welding .

 

Modeling of Metal Forming Processes with Physical Modeling and FEM methods.

 

Process Design and Manufacturing of The Metalic Traverse in Rail Road Industry with Roll Forming Technique

 

Elastic-Plastic Analysis of sheet metal forming considering the bending effects with FEM.

 

The Plastic Injection Process.

 

Analytical and experimental investigations in Estimation of Spread in Rolling Process.

 

Application of FEM in Metal Forming Processes .

 

Determination of Optimum Blank and Material Flow Lines With Slip Line Fields.

 

Analysis of Forging Process by Slab Method and Physical Modeling

 

Application of The Upper Bound Theory in Analysis of Hollow Sections in Extrusion Process.

 

Analysis of Sheet Metal Forming with predefined strain as a target.

 

Investigation and Evaluation of Formability in Sheet Metals.