Experimental Research on Dynamic Behavior of Circular Mild Steel Plates with Surface Cracks Subjected to Repeated Impacts in Low Temperature
Joint Authors
Zeng, Yang
Liu, Jingxi
Chen, Hao
Yu, Rong
Shen, Zhiyuan
Yu, Zixian
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-21
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Experimental investigations on the mechanical responses of fully clamped circular plates with prefabricated crack at room temperature and low temperature have been conducted.
Initial cracks with different lengths were prefabricated by the electrical discharge machining method.
Low ambient temperature was created by the liquid nitrogen in a low-temperature chamber, and a dropping hammer was dropped from the same height with a constant impact energy of 5 J to carry out the repeated impact.
Experimental test results show that the prefabricated crack has a significant influence on the mechanical behavior of the thin plates.
The maximum impact force decreases with increase of the crack length, and the threshold impact number until fracture decreases with increase of the crack length.
It is also observed from the test results that the maximum impact force increases with decrease of the temperature, while threshold impact number until fracture and the plastic permanent deformation decreases due to the brittleness of the material in low temperature.
The present investigations provide useful insight into the failure mechanism of the clamped thin plate with initial crack under low-velocity repeated impacts in low temperature, which will lead to a guideline for research and design of marine structures in the arctic area.
American Psychological Association (APA)
Zeng, Yang& Chen, Hao& Yu, Rong& Shen, Zhiyuan& Yu, Zixian& Liu, Jingxi. 2020. Experimental Research on Dynamic Behavior of Circular Mild Steel Plates with Surface Cracks Subjected to Repeated Impacts in Low Temperature. Shock and Vibration،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1209837
Modern Language Association (MLA)
Zeng, Yang…[et al.]. Experimental Research on Dynamic Behavior of Circular Mild Steel Plates with Surface Cracks Subjected to Repeated Impacts in Low Temperature. Shock and Vibration No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1209837
American Medical Association (AMA)
Zeng, Yang& Chen, Hao& Yu, Rong& Shen, Zhiyuan& Yu, Zixian& Liu, Jingxi. Experimental Research on Dynamic Behavior of Circular Mild Steel Plates with Surface Cracks Subjected to Repeated Impacts in Low Temperature. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1209837
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209837