Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Słowik Marta
Rok wydania:	2011
Wersja dokumentu:	Elektroniczna
Język:	angielski
Numer czasopisma:	4
Wolumen/Tom:	50
Strony:	1347 - 1352
Impact Factor:	1,574
Web of Science® Times Cited:	10
Scopus® Cytowania:	12
Bazy:	Web of Science \| Scopus
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	There are two ways of modelling cracking in concrete structures using a finite element method (FEM). In the first concept crack is considered as densely distributed throughout the finite area of element. The alternative approach assumes an isolated sharp interelement crack. The first concept of microcracked band is often used during numerical computations of concrete structures and a crack band model can be applied in design practice where relatively simple methods of calculations are preferred. In this model the width of microcracked zone, which is called the width of fracture process zone, is the additional parameter of tensile concrete. In this paper, the influence of the fracture process zone width on numerical calculations in case of bent concrete beams is analyzed. The results of numerical simulations are presented and compared with those obtained during the experiment. The crack band model proposed by Hillerborg [Cement and Concrete Research, 6 (1976) 773-782] has been used in numerical calculations and six different widths of fracture process zone have been modelled in the analyzed specimen. When comparing the obtained FEM-results their significant differences according to the width of fracture process zone have been observed. On the basis of the performed analysis it may be concluded that the width of fracture process zone taken in numerical simulations does have an influence on FEM-results. (C) 2010 Elsevier B.V. All rights reserved.

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Numerical analysis of the width of fracture process zone in concrete beams

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