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:2022-10-06
Journal:材料科学与工艺
Affiliation of Author(s):运载工程与力学学部
Issue:5
Page Number:696-701
ISSN No.:1005-0299
Abstract:To study the material behaviors in friction stir welding in consideration of viscosity effects,the rate dependent constitutive model was adopted to describe the material behaviors in friction stir welding and the corresponding caculation results were compared with those of the rate independent material model. Results indicate that the simulation of the friction stir welding process by using the rate dependent material model is much more similar to the real manufacture. The tangent movement of the material takes the main contributions in friction stir welding. The contact pressure in front of the pin is much higher than that behind the pin, which can be seen more clearly in the rate dependent material model. Due to the extrusion of the pin, the material in front of the pin moves away from the pin, however, the material behind the pin fills the vacant place formed by the movement of the pin. It is a main factor to perform the friction stir welding process successfully. The predicted material behaviors are closer to those of the real material flow in friction stir welding when the rate dependent model is used.
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.
