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Experimental Mechanics

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01-02-2013

A Shear Compression Disk Specimen with Controlled Stress Triaxiality Under Dynamic Loading

Authors: B. Karp, A. Dorogoy, D. Rittel

Published in: Experimental Mechanics | Issue 2/2013

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Abstract

This paper presents an experimental and numerical study of the potential of the Shear Compression Disk specimen (SCD) to characterize the plastic flow and fracture of metals under various levels of stress triaxiality at strain rates of up to 10⁴ 1/s. The main loading mode in that specimen is shear with triaxiality ranging from 0 to -0.8. The specimen is relatively small and fits into a standard split Hopkinson pressure bar system. Aluminum 7075-T651 alloy was chosen for a test case study. Experimental and numerical investigations reveal the adequacy of the SCD specimen for the study of mechanical properties of materials under high strain-rates and low, though wide, range of stress triaxialities.

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Title: A Shear Compression Disk Specimen with Controlled Stress Triaxiality Under Dynamic Loading
Authors: B. Karp
A. Dorogoy
D. Rittel
Publication date: 01-02-2013
Publisher: Springer US
Published in: Experimental Mechanics / Issue 2/2013
Print ISSN: 0014-4851
Electronic ISSN: 1741-2765
DOI: https://doi.org/10.1007/s11340-012-9630-4

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