Work of fracture due to compressive component of loading in wedge splitting test on quasi-brittle cementitious specimens

0454716 - ÚFM 2016 RIV CH eng C - Conference Paper (international conference)
Veselý, V. - Bedáň, J. - Sobek, J. - Seitl, Stanislav
Work of fracture due to compressive component of loading in wedge splitting test on quasi-brittle cementitious specimens.
Advances in Fracture and Damage Mechanics XIII. Zürich: Trans Tech publications, 2015 - (Alfaiate, J.; Aliabadi, M.), s. 317-320. Key Engineering Materials, 627. ISBN 978-3-03835-235-8. ISSN 1013-9826.
[FDM 2014 International Conference on Fracture and Damage Mechanics /13./. São Miguel Island, Azores (PT), 23.09.2014-25.09.2014]
R&D Projects: GA MŠMT(CZ) 7AMB14AT012
Institutional support: RVO:68081723
Keywords : Wedge splitting test * splitting force * compressive force * work of fracture * quasi-brittle fracture * FEM
Subject RIV: JL - Materials Fatigue, Friction Mechanics

The paper presents an analysis of the influence of the compressive (vertical) component of the loading force in the wedge splitting test on the values of fracture characteristics determined using standard procedures where this component is ignored. Particularly, a portion of work of fracture due to this compressive component of loading working on vertical displacements is investigated and given into relation with the common part of work of fracture calculated in the horizontal direction only. The results show that, based on the angle and width of the wedge used in the particular WST configuration, the portion of the work of fracture due to compressive loading can be considerable and should not be neglected.
Permanent Link: http://hdl.handle.net/11104/0255397