Study on Crack Propagation Velocity of Mortar/Granite Specimens by Impact Test

Autor:	Tomio Tamano, Natsuki Mizutani, Takeharu Eto, Kengo Oshima, Kosei Takehara, Masanobu Kanaoka
Rok vydání:	2008
Předmět:	Materials science Mechanics of Materials Mechanical Engineering Ultimate tensile strength General Materials Science Fracture mechanics Composite material Impulse (physics) Impact test Mortar Condensed Matter Physics Critical value
Zdroj:	Journal of the Society of Materials Science, Japan. 57:8-11
ISSN:	1880-7488 0514-5163
DOI:	10.2472/jsms.57.8
Popis:	In this study, the static and impact splitting tensile tests were carried out by loading the cylindrical mortar/granite specimens horizontally, and the crack propagation velocities were obtained by the image analysis using the ultra high-speed video camera, which is the fastest in the world, developed by Etoh et al.(2003). The correlations between the impulse and the crack propagation velocity indicate that there appears to be a critical state in which the crack propagation velocity does not exceed a certain value even though the increased impulse is applied. The critical value obtained was 2.6km/s for both mortar and granite specimens. Furthermore, crack propagation velocity determined by the image analysis was verified by the dynamic strain analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7173acba9524c625ce47f911e46f87ba https://doi.org/10.2472/jsms.57.8 Zobrazit plný text záznamu