Cadoni, Ezio and Dotta, Matteo and Forni, Daniele and Bianchi, Stefano (2011) Strain-rate effect on high strength alloys. Applied Mechanics and Materials, 82. pp. 124-129.
Full text not available from this repository.Abstract
In this paper the first results of the mechanical characterization in tension of two high strength alloys in a wide range of strain rates are presented. Different experimental techniques were used for different strain rates: a universal machine, a Hydro-Pneumatic Machine and a JRC-Split Hopkinson Tensile Bar. The experimental research was developed in the DynaMat laboratory of the University of Applied Sciences of Southern Switzerland. An increase of the stress at a given strain increasing the strain-rate from 10-3 to 103 s-1, a moderate strain-rate sensitivity of the uniform and fracture strain, a poor reduction of the cross-sectional area at fracture with increasing the strain-rate were shown. Based on these experimental results the parameters required by the Johnson-Cook constitutive law were determined.
Item Type: | Scientific journal article, Newspaper article or Magazine article |
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Subjects: | Engineering Engineering > Mechanical engineering Engineering > Mechanical engineering > Dynamics Engineering > Mechanical engineering > Mechanisms & machines Engineering > Mechanical engineering > Automotive engineering Engineering > Mechanical engineering > Automotive engineering > Road vehicle engineering |
Department/unit: | Dipartimento ambiente costruzioni e design > Laboratorio SUPSI DYNAMAT |
Depositing User: | Ezio Cadoni |
Date Deposited: | 14 Jan 2013 07:58 |
Last Modified: | 24 Aug 2023 14:00 |
URI: | http://repository.supsi.ch/id/eprint/1468 |
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