Back to Search Start Over

MECHANICAL CHARACTERIZATION OF STEEL FOR FASTENING IN A WIDE RANGE OF STRAIN RATE.

MECHANICAL CHARACTERIZATION OF STEEL FOR FASTENING IN A WIDE RANGE OF STRAIN RATE.

Authors :
Cadoni, E.
Bragov, A. M.
Dotta, M.
Forni, D.
Konstantinov, A.
Lomunov, A.
Ripamonti, A.
Source :
Engineering Transactions; 2011, Vol. 59 Issue 2, p101-117, 17p
Publication Year :
2011

Abstract

In this paper, the preliminary results of the mechanical characterization in a wide range of strain rate of the 30MnB4 steel, usually adopted for fasteners, are described. In this study the different issues required to implement the dynamic test results in numerical code have been analyzed. Different experimental techniques have been used for different strain rates: universal machine, Hydro-Pneumatic Machine, JRC-Modified Hopkinson Bar and Split Hopkinson Pressure Bar. The failure at high strain rate has been examined by means of fast digital image recording systems. The material shows enhanced mechanical properties increasing the strain rate: this fact can be taken into consideration to improve the product design and the manufacturing process. The experimental research has been developed in the DynaMat laboratory of the University of Applied Sciences of Southern Switzerland and in the Laboratory of Dynamic Investigation of Materials in Nizhny Novgorod, in the frame of the Swiss -- Russian Joint Research Program. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0867888X
Volume :
59
Issue :
2
Database :
Supplemental Index
Journal :
Engineering Transactions
Publication Type :
Academic Journal
Accession number :
67121504