Zhang Zhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Academic Titles: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:
E-Mail:
Hits:
Date:2019-03-09
Indexed by:Journal Article
Date of Publication:2009-12-01
Journal:INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Included Journals:Scopus、EI、SCIE
Volume:45
Issue:9-10
Page Number:889-895
ISSN:0268-3768
Key Words:Friction stir welding; Finite element method; Material flow; Thermo-mechanical analysis
Abstract:A fully coupled thermo-mechanical model is adopted to study the effect of shoulder size on the temperature distributions and the material deformations in friction stir welding. Numerical results indicate that the maximum temperature can be increased with the increase of the shoulder diameter. The stirring zone can be enlarged by the increase of the shoulder size. With consideration of the recrystallization formula, it is found that the temperature variation is the main factor for controlling the grain growth near the welding line. But, when the strain and the strain rate become smaller near the border of the stirring zone, the recrystallization process is dominated by the material deformations instead of the temperature rise.
