Experimental Study on a Graded Stainless Steel Sheet under Quasi-Static and Dynamic Loading

Abstract:

Shearing tests and penetration tests were combined to determine the mechanical behavior of a stainless steel metal treated by surface mechanical attrition (SMA). SMAT is a usual treatment to strengthen the hardness of treated surface by severe mechanical strain, which generates also a gradient through the direction of thickness. This paper aimed at investigating the behavior of sheet metals treated by means of SMAT under impact loading. Double shearing tests at high strain rate were performed using Hopkinson bar. The experimental results demonstrated notable strain rate sensitivity and a good ductility without sacrificing the strength. An impact perforation test is also performed using inversed perforation test in order to study its sensibility of failure to the loading rate.

• Periodical: Key Engineering Materials (Volumes 535-536)
• Pages: 56-59
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.535-536.56
• Online since: January 2013
• Authors: Fei Fei Shi, Bing Hou, Yu Long Li, Jian Lu, Han Zhao
• Keywords: Double Shearing Test, Gradient Steel Sheet, Penetration Test, SMAT

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