Fracture of soda lime glass under impact loading

0573594 - ÚT 2024 RIV IN eng J - Článek v odborném periodiku
Buchar, Jaroslav - Trnka, Jan - Řídký, R.
Fracture of soda lime glass under impact loading.
International Journal Of Engineering Research And Development. Roč. 19, č. 3 (2023), s. 38-51. ISSN 2278-800X. E-ISSN 2278-067X
Grant CEP: GA MŠMT(CZ) EF15_003/0000493
Institucionální podpora: RVO:61388998
Klíčová slova: impact loading * dynamic Brazilian test * Hopkinson pressure bar * fracture strength * high speed photography * JH2 model * numerical simulation
Obor OECD: Mechanical engineering
Způsob publikování: Open access
http://www.ijerd.com/paper/vol19-issue3/F19033851.pdf

A modified method of the dynamic Brazilian test was used to study of fracture of soda – lime glass. This method is based on the Hopkinson pressure bar when the specimen is loaded by the direct impact of a striker. Specimen response to the impact loading is given by the stress pulse monitored in the pressure bar. The main characteristics of these pulses are compared with those obtained using the common dynamic Brazilian test. The use of the high speed camera showed that the qualitative features of the specimen fracture are very similar even if not the same for both used experimental techniques. The Johnson-Holmquist ceramic model (JH2) was used for the numerical simulation of the modified method using LS DYNA software. It was found that the agreement
between the computed and the experimental results improved with the increase in the striking velocity
Trvalý link: https://hdl.handle.net/11104/0349749