Ramin Hashemi

ORCID: 0000-0001-8369-0390
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About
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Research Areas
  • Metal Forming Simulation Techniques
  • Aluminum Alloys Composites Properties
  • Metallurgy and Material Forming
  • Microstructure and mechanical properties
  • Advanced Welding Techniques Analysis
  • Aluminum Alloy Microstructure Properties
  • Laser and Thermal Forming Techniques
  • Numerical methods in engineering
  • Magnesium Alloys: Properties and Applications
  • Additive Manufacturing and 3D Printing Technologies
  • Composite Structure Analysis and Optimization
  • Composite Material Mechanics
  • Additive Manufacturing Materials and Processes
  • Welding Techniques and Residual Stresses
  • Advanced Surface Polishing Techniques
  • Cellular and Composite Structures
  • Fatigue and fracture mechanics
  • Manufacturing Process and Optimization
  • Microstructure and Mechanical Properties of Steels
  • Mechanical Behavior of Composites
  • Artificial Intelligence in Healthcare
  • Orthopaedic implants and arthroplasty
  • MXene and MAX Phase Materials
  • Optical measurement and interference techniques
  • Nonlocal and gradient elasticity in micro/nano structures

Iran University of Science and Technology
2016-2025

Islamic Azad University Sanandaj Branch
2015-2023

Ministry of Science, Research and Technology
2020

University of Tehran
2008-2019

Rutgers, The State University of New Jersey
2017

Eastern Mediterranean University
2014-2015

Islamic Azad University, Tehran
2015

Islamic Azad University, Bushehr Branch
2012-2014

K.N.Toosi University of Technology
2013

Sharif University of Technology
2008-2012

As one of the light materials with superior biocompatible properties, magnesium has drawn more attention in recent years. More industries, such as automotive, aerospace, and medical, are adopting new strategies to employ this material. Mg-based batteries potential advantages over Li-based also predicted be used electric vehicles shortly. However, significant problems production Mg, its low ductility at ambient temperature high oxidation flammability operating temperatures, have limited...

10.1016/j.jmrt.2022.05.102 article EN cc-by Journal of Materials Research and Technology 2022-05-25

Forming limit diagram is often used as a criterion to predict necking initiation in sheet metal forming processes. In this study, the was obtained through inclusion of Marciniak–Kaczynski model Nakazima out-of-plane test finite element and also flat model. The effect bending on investigated numerically experimentally. Data required for simulation were determined simple tension three directions. After comparing results models with experimental results, computed by more convenient less than...

10.1177/1464420716642258 article EN Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications 2016-04-05

In this study, the effect of through-thickness shear (TTS) stress has been examined on prediction forming limit diagrams (FLDs). Determination FLD is based Marciniak–Kuczynski (M–K) model with some modifications states for consideration TTS effects. For solving equations, Newton–Raphson method used. Furthermore, Nakazima test simulated to investigate state which occurs in sheet during test. Results showed that formability metal could be better as increased. Also, implementation present...

10.1080/15397734.2019.1662310 article EN Mechanics Based Design of Structures and Machines 2019-09-09

In this article, we investigated the effect of martensite morphology on mechanical properties and formability dual phase steels. At first, three heat treatment cycles were subjected to a low-carbon steel produce ferrite–martensite microstructure with blocky-shaped, continuous, fibrous. Tensile tests then carried out so as study properties, particularly strength strain hardening behavior order samples, Forming Limit Diagram was obtained experimentally numerically. Experimental forming limit...

10.1080/15397734.2019.1633343 article EN Mechanics Based Design of Structures and Machines 2019-07-09

Due to the significant mortality rate associated with atherosclerosis-induced cardiovascular disease, utilization of advanced intravascular stents superior mechanical performance is imperative for restoration obstructed arteries. This study proposes novel auxetic medical that aim enhance critical parameters biomedical stents. includes load-bearing capacity, expanded opening percentage, and reduced recoil percentage. On this matter, missing rib unit cell has been considered geometrically...

10.1016/j.matdes.2023.112393 article EN cc-by Materials & Design 2023-10-07

In this work, for the first time, two-layer Aluminum (Al 1050) and magnesium (AZ31B) sheet were used in single point incremental forming (SPIF) process. Due to high strength-to-weight ratio of Al 1050/Mg-AZ31B sample, today it is significant industries such as automotive aerospace. The finite element simulation process was carried out using Abaqus Software considering five approaches determine limits. These limit diagram criterion (FLDcrt), effective strain rate (ESR), second derivation...

10.1016/j.jmrt.2024.01.085 article EN cc-by Journal of Materials Research and Technology 2024-01-11

In this research, Al/Cu/Mg multilayered composites were produced by the accumulative roll bonding (ARB) process and then annealed at different temperatures times. Microstructural studies showed that with increasing temperature annealing time in zero cycle samples, thickness of intermetallic compounds (Al3Mg2 Al12Mg17) increased. Also, optical microscopy (OM) images displayed Al3Mg2 growth rate was higher than Al12Mg17. The effect strain various conditions on is very low. Its more accelerated...

10.1016/j.jmrt.2021.06.032 article EN cc-by-nc-nd Journal of Materials Research and Technology 2021-06-26

In this article, the influences of ultrasonic vibrations and post-annealing on formability multilayered Al5052/MgAZ31B composite were evaluated experimentally. Accordingly, a Al/Mg was produced then annealed to explore role microstructure mechanical properties. Additionally, effect examined using biaxial stretch-forming test. It is concluded that cold rolling process can significantly enhance tensile strength microhardness due increased dislocations’ density applied strain. Moreover,...

10.1080/02670836.2020.1867784 article EN Materials Science and Technology 2021-01-01

In this research, the experimental investigation of change strain path on microstructure, mechanical properties and forming limit diagram Al/Mg two-layer sheet made by roll bonding method has been performed. This research tries to make a with reduction ratio 55% using four single-pass two-pass (the first pass 40% second changing in form direct rolling, reverse rolling cross rolling) methods. The results show that microstructure is more uniform than other cases. No delamination observed...

10.1016/j.jmrt.2023.02.148 article EN cc-by Journal of Materials Research and Technology 2023-02-25
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