A5071428574- Metal Forming Simulation Techniques
- Advanced Welding Techniques Analysis
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Metallurgy and Material Forming
- Welding Techniques and Residual Stresses
- Aluminum Alloy Microstructure Properties
- Photopolymerization techniques and applications
- Micro and Nano Robotics
- Advanced Machining and Optimization Techniques
- Surface Treatment and Residual Stress
- Innovations in Concrete and Construction Materials
- Epoxy Resin Curing Processes
- Advanced materials and composites
- High-Velocity Impact and Material Behavior
- Microstructure and Mechanical Properties of Steels
- Fatigue and fracture mechanics
- Material Properties and Applications
- Laser and Thermal Forming Techniques
- Powder Metallurgy Techniques and Materials
- Non-Destructive Testing Techniques
- Tunneling and Rock Mechanics
- Metal and Thin Film Mechanics
- Additive Manufacturing and 3D Printing Technologies
- Cellular and Composite Structures
Florida A&M University - Florida State University College of Engineering
2023
University of Kashan
2016-2020
Tsinghua University
2020
Iran University of Science and Technology
2016
Sharif University of Technology
2012
Purpose In this research, experimental and numerical methods were used to study the effect of pore geometry on residual stress mechanical behavior 3D-printed parts. regard, samples with circular, rhombic hexagonal geometries printed using fused deposition modeling (FDM), their was measured through strain release method. The finite-element method (FEM) utilized strength natural frequency samples. Design/methodology/approach As a modern part manufacturing repair, 3D printing has been highly...
In this study, we experimentally investigate the rheological and flow behavior of two-dimensional (2D) monodisperse aqueous foams, sheared between parallel plates using a custom-made rheo-optical apparatus with smooth roughened walls. The foams were prepared two commercially available detergents, Foam 1 Foam2, while maintaining similar bubble sizes liquid fractions. linear viscoelastic results reveal that consistently exhibits higher elastic loss moduli than 2, regardless boundary...
The main purpose of this study is to investigate the effect sheet thickness on nugget size and residual stresses in resistance spot welding. A two-dimensional coupled electro-thermo-mechanical finite element model employed predict aluminum alloy 6061-T6. simulation results are compared with obtained from experimental measured by X-ray diffraction method. indicate that highest tensile stress occurs at center diminish along radius. increase increasing electrical current reducing welding time....
We report three stages for locomotion of a helical swimmer in yield stress fluids. In the first stage, must overcome material's strain to generate rotational motion. However, exceeding threshold is not sufficient locomotion. Only when viscous forces are sufficiently strong plastically deform material finite distance away from will net occur. Once underway third retards swimming at small pitch angles. Conversely, large angles, dominates flow by enhancing speed. Flow visualizations reveal...
Constrained groove pressing process is a severe plastic deformation method, which can improve the properties of metal sheet. The purpose this research to investigate effect behavior and effective strain on constrained pressed sheet properties. For aim, procedure were investigated based analytical relations geometry. Formation in was divided into bending, stretching, sections, respective contribution each formation evaluated. Then, main sections force, mechanical properties, microstructure...
In this study, the effects of cold-rolling process on microstructure and mechanical properties explosively-welded Al/St/Al sheet were investigated. context, samples prepared by explosive welding rolled with 4 different thickness reductions. The interface studied Vickers micro-hardness, shear tensile strength tests. Investigation interfacial contact fracture surfaces was performed optical microscopy (OM), scanning electron (SEM) energy-dispersive spectroscopy (EDS). results showed that...
Constrained groove pressing (CGP) process is a severe plastic deformation (SPD) method that can create ultrafine-grained microstructure in the sheet metals. In this study, residual stresses of CGP and effect friction coefficient on were investigated. The measured two directions using multi-cut contour mathematical-finite element model was developed to estimate uncertainty results method. order study stresses, 3D finite employed it validated with experimental process. According results, first...
Due to the growing utilize of lightweight materials and wide use resistance spot welding in several industries, this study was investigated effect parameters on residual stresses AZ31 magnesium alloy. Resistance is a complicated multi-regime phenomenon which simulated by developed electro-thermo-mechanical coupled finite element model. The importance interactions determined using design experiment method (DOE). FE model used predict temperature changes, nugget growth, distribution. For...