Počet záznamů: 1

Wedge-Splitting Test – Determination of Minimal Starting Notch Length for Various Cement Based Composites

SYSNO ASEP	0354597
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Wedge-Splitting Test – Determination of Minimal Starting Notch Length for Various Cement Based Composites
Tvůrce(i)	Seitl, Stanislav (UFM-A)_{RID, ORCID} Klusák, Jan (UFM-A)_{RID, ORCID} Veselý, V. (CZ) Řoutil, L. (CZ)
Celkový počet autorů	4
Zdroj.dok.	Key Engineering Materials - ISSN 1013-9826 452-453, - (2011), s. 81-84
Poč.str.	4 s.
Jazyk dok.	eng - angličtina
Země vyd.	CH - Švýcarsko
Klíč. slova	wedge-splitting test, cementitious composites, quasi-brittle fracture, brittle fracture
Vědní obor RIV	JL - Únava materiálu a lomová mechanika
CEP	KJB200410901 GA AV ČR - Akademie věd
	GA103/08/0963 GA ČR - Grantová agentura ČR
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000287421700021
Anotace	The paper focuses on the geometrical proportions of cube-shaped quasi-brittle specimens subjected to a wedge-splitting test (WST). The minimal/optimal initial crack/notch length for successful performance of WST on these specimens is studied numerically (ANSYS). This second part of the paper treats the problem asymptotically, i.e. from the point of view of a very fine grained silicate composite material with negligible characteristic length which describes the level of the material brittleness (i.e. brittle). The problem of competition of the crack initiation point between the notch tip and the groove corner in the load-imposing area of the specimen is solved using theories of both linear elastic fracture mechanics and fracture mechanics of generalized singular stress concentrators. The numerically obtained crack/notch length is compared to results of numerical simulations using cohesive crack model reported in the first part of the paper. The minimal notch length is recommended.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2011

Počet záznamů: 1