The impact of stone shape to the thermal stress of ashlar masonry

0447575 - ÚTAM 2016 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Beran, Pavel
The impact of stone shape to the thermal stress of ashlar masonry.
Proceedings of the International Conference on Numerical Analysis and Applied Mathematics 2014 (ICNAAM-2014). Vol. 1648. Melville, NY: AIP Publishing, 2015 - (Simos, T.; Tsitouras, C.), č. článku 090005. AIP Conference Proceedings. ISBN 978-0-7354-1287-3. ISSN 0094-243X.
[International Conference on Numerical Analysis and Applied Mathematics (ICNAAM). Rhodes (GR), 22.09.2014-28.09.2014]
Grant CEP: GA ČR(CZ) GBP105/12/G059
Klíčová slova: heat transfer * coefficient of thermal expansion * thermal stress * finite element method * shape of stones
Kód oboru RIV: JN - Stavebnictví
http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4912393

The design of repair mortars for renovation of historic objects depends on many aspects. One of these aspects is the impact of the difference of thermal expansion coefficient between mortar and stone. This paper is focused on thermal stress close to the corners of the stones. Three 3-D detail finite element models of masonry which have different radius of curvature in the corners of stone were used for computation of thermal stress. The main result is that shape of stones in ashlar masonry significantly affects the values of thermal stress. The higher radius of curvature of the stones in corners causes significant decrease of thermal stress values in the corners of stone.
Trvalý link: http://hdl.handle.net/11104/0249386