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Experimental Mechanics

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13.10.2017 | Brief Technical Note

Evaluation of the Stress Equilibrium Condition in Axially Constrained Triaxial SHPB Tests

verfasst von: R. Chen, W. Yao, F. Lu, K. Xia

Erschienen in: Experimental Mechanics | Ausgabe 3/2018

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Abstract

Over the years many improvements and modifications have been made to the split Hopkinson pressure bar (SHPB). For example, the triaxial SHPB has been developed and used to study various materials. The dynamic stress equilibrium condition for conventional SHPB tests has been well studied in the literature. However, the stress equilibrium in the axially constraint triaxial SHPB tests requires careful examination because the wave propagation is affected by the axial pre-load stress. In this study, we analyzed the stress equilibrium condition in such cases using stress wave analysis and numerical simulations. Based on the study, we offer methods and suggestions for performing valid stress equilibrium assessment in axially constrained triaxial SHPB tests.

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Titel: Evaluation of the Stress Equilibrium Condition in Axially Constrained Triaxial SHPB Tests
verfasst von: R. Chen
W. Yao
F. Lu
K. Xia
Publikationsdatum: 13.10.2017
Verlag: Springer US
Erschienen in: Experimental Mechanics / Ausgabe 3/2018
Print ISSN: 0014-4851
Elektronische ISSN: 1741-2765
DOI: https://doi.org/10.1007/s11340-017-0344-5

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