Zhang Zhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Main positions:Professor in Process Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Department of Engineering Mechanics, Dalian University of Technology
Discipline:mechanics of manufacturing process. Engineering Mechanics. Computational Mechanics
Business Address:Room 619,Integrated Laboratory building (1#)
Contact Information:+86-411-84708432 zhangz@dlut.edu.cn
E-Mail:zhangz@dlut.edu.cn
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Date of Publication:2022-10-10
Journal:机械工程学报
Affiliation of Author(s):运载工程与力学学部
Issue:18
Page Number:23-27
ISSN No.:0577-6686
Abstract:Fully coupled thermo-mechanical model and modified Coulomb friction law are used to simulate the friction stir welding of AA 2024-T3 with thin and thick plates respectively. Comparison show that the material flow near the top surface is faster than the one near the bottom surface. The maximum velocity occurs in front of the welding pin in the retreating side on the top surface. This means that the effect of the shoulder on material flow is more obvious near the top surface. Higher power is needed when thick plates are friction stir welded. Friction dissipation is the main energy to consist of the heat source in friction stir welding. Higher proportion can be found in friction stir welding of thin plates to show that heat efficiency is higher. Plastic deformation and temperature are the main factors to affect the microstructures. The improvement of grains and the welding efficiency in friction stir welding of thick plates are weaker. Based on the energy results and the deduction on microstructural evolutions it can be found that higher efficiency occurs in friction stir welding of thick plates. © 2011 Journal of Mechanical Engineering.
Note:新增回溯数据
Zhang Zhao, Ph.D., Professor in Process Mechanics.
Editorial member in Coatings (IF:2.881) from 2020 to 2022.
Editorial member in Crystals (IF:2.589) from 2020 to 2022.
Younth editorial member in Journal of Central South University(IF:1.716) from 2020 to 2022.
Professor Zhang has published more than 60 SCI publications with over 1100 citations. He served as reviewers for more than 30 international journals. His main pulications can be found:
https://orcid.org/0000-0001-7181-8617
https://publons.com/researcher/1987190/zhao-zhang/
The scientific research focuses on experimental and numerical works on friction stir welding/processing/additive manufacturing, numerical modelling and simulation of additive manufacuring, topological design of phononic crystals, locomotive and high speed train design.
