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Numerical Model of Plastic Deformation on Cracked Surface under Repeated Pneumatic Impact
Joint Authors
YuanZhou, Zhiyuan
Ji, Bohai
Sun, Tong
Ye, Zhi
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-30
Country of Publication
Egypt
No. of Pages
9
Abstract EN
Crack-closure treatment through repeated impact is supposed to be an effective, economical way to extend the fatigue remaining life for fatigue-affected structures with less damage.
The material plastic behavior under repeated impact between chisel and material bodies was investigated, for the purpose of describing the crack-closure effect.
A numerical model was established associating the impact depth with the number of impact times and device parameters, which is also proved by experiments.
The material properties, after repeated impact, was determined via metallographic analysis and microhardness tests, indicating that the material will be hardened within a small affected zone due to the grain refinement caused by repeated impact.
The finite-element method was used, as a supplementary approach, to investigate the relationship between impact depth and horizontal deformation on the cracked surface.
A one-to-one linear relation was obtained, even under the different chisel tip parameters.
Therefore, the contact of fracture surface, i.e.
crack closure, can be predicted with the help of this numerical model and the aforementioned relationship.
American Psychological Association (APA)
YuanZhou, Zhiyuan& Ji, Bohai& Sun, Tong& Ye, Zhi. 2018. Numerical Model of Plastic Deformation on Cracked Surface under Repeated Pneumatic Impact. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1121833
Modern Language Association (MLA)
YuanZhou, Zhiyuan…[et al.]. Numerical Model of Plastic Deformation on Cracked Surface under Repeated Pneumatic Impact. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1121833
American Medical Association (AMA)
YuanZhou, Zhiyuan& Ji, Bohai& Sun, Tong& Ye, Zhi. Numerical Model of Plastic Deformation on Cracked Surface under Repeated Pneumatic Impact. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1121833
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121833