A novel full-view split Hopkinson pressure bar technique for flexural testing

Martin Jensen Meyland*, Rasmus N. W. Eriksen, Jens Henrik Nielsen

*Corresponding author for this work

    Research output: Contribution to conferencePaperResearchpeer-review

    Abstract

    This paper presents the design concept of a ring-on-ring test configuration arranged in a novel split Hopkinson pressure bar (SHPB) inspired setup. It is a generic design, but in this case, intended for investigating the equibiaxial flexural strength of small circular soda-lime-silica glass specimens at high strain-rates. As these kinds of results for glass are rare to find in the literature, this concept will add new knowledge to the field. It is a widely used practice to apply setups like a SHPB for dynamic material characterisation. However, the novelty in the design of the presented SHPB setup consists of a transmission bar transformed into a tube having the incident bar going through. This reduces the total length of the setup considerably and provides the opportunity to apply high-speed cameras for recording the fracture process together with digital image correlation, as the tensile side of the specimen is visible during the tests. A numerical assessment of the experimental setup is provided, indicating the overall applicability of the concept. This includes an analysis of the possibility of obtaining dynamic load equilibrium between the incident bar and the transmission tube, which is a required load condition for evaluating the tested specimens.
    Original languageEnglish
    Publication date2019
    Number of pages10
    Publication statusPublished - 2019
    Event13th International Conference on Shock & Impact Loads on Structures - Guangzhou, China
    Duration: 13 Dec 201915 Dec 2019
    Conference number: 13

    Conference

    Conference13th International Conference on Shock & Impact Loads on Structures
    Number13
    Country/TerritoryChina
    CityGuangzhou
    Period13/12/201915/12/2019

    Keywords

    • Material characterisation
    • Flexural strength
    • High loading rates
    • High strain-rates
    • Ring-on-ring test
    • Dynamic testing
    • Numerical modelling
    • Blast and impact

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    • Blast loading on glass in facades

      Meyland, M. J., Chen, W. W., Overend, M., Stang, H., Nielsen, J. H., Eriksen, R. N. W., Exner, H. & Kristensen, S. P.

      01/01/201903/08/2022

      Project: PhD

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