Work

Commissioning of universal Split Hopkinson Bar for dynamic compression and tension experiments

Year: 2025

Type: article

Abstract: Split Hopkinson Bar is an experimental apparatus designed for acquiring material properties in dynamic regime. The apparatus is usually constructed as a single purpose experimental device for specific type of loading, most commonly either compression (Split Hopkinson Pressure Bar) or tension (Split Hopkinson Tensile Bar). In this paper, a simple and highly modular design capable of testing for multiple types of loading is introduced, which can be a great advantage to obtain material properties under different loading conditions. The device was successfully assembled, including its electrical installation and implementation of a pneumatic launching system and was fitted with multiple sensors. Series of calibration procedures was conducted successfuly to analyze correct behaviour of the system. After calibration, the apparatus was subjected to multiple pilot tests with samples manufactured using 3D printing. The results were compared to those obtained using the quasi-static method.

Source: Acta Polytechnica CTU Proceedings

DOI: 10.14311/app.2025.52.0043

Authors: Lukáš Kocian, Jan Falta, Nela Krčmářová, Tomáš Fíla, Jan Šleichrt

Institution: Czech Technical University in Prague

Language: English

Topic: High-Velocity Impact and Material Behavior

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

Funder: Grantová Agentura České Republiky