학술논문
Non-standard experimental tests of sandstone and its pre-cracking for fracture testing
Document Type
Article
Author
Source
IOP Conference Series: Materials Science and Engineering; June 2018, Vol. 379 Issue: 1 p012029-012029, 1p
Subject
Language
ISSN
17578981; 1757899X
Abstract
The paper presents a methodology for investigating fracture phenomena in sandstone. It shows the preparation of test specimens with a cyclic loading generated crack, control of the test specimen preparation and verification by means of x-ray microCT and digital image correlation (DIC) techniques. There are also presented tests studying tensile and fatigue characteristics of arkose sandstone used i. a. for the construction of the medieval Charles Bridge in Prague where weather induced tensile damage and failure occurred. Finally, the new methodology for pre-cracking of the specimens was verified experimentally and fracture toughness was computed.