Crack mechanisms in concrete – from micro to macro scale

W pracy zaprezentowany został model rysy fikcyjnej zaproponowany przez Hillerborga do opisu betonu rozciąganego. Model ten stanowi podstawę do opisu powstawanie i propagacji rysy w betonie na poziomie meso. Jest on przydanym narzędziem w zastosowaniach praktycznych, zarówno do analiz numerycznych jak i w badaniach eksperymentalnych. Model został wyprowadzony na podstawie obserwacji mechanizmów zarysowania w skali mikro i makro. Mechanizmy te zostały opisane w pracy. Na szczególną uwagę zasługuje fakt wpływu wymiaru kruszywa na parametry wytrzymałościowe i parametry pękania betonu, a w dalszej konsekwencji na powstawanie mikrorys i tworzenie rysy właściwej. Mimo osiągnięcia znaczącego postępu w badaniach nad mechanizmami pękania w betonie, nadal istnieje wiele aspektów wymagających dalszych analiz. Należy do nich analiza wpływu uziarnienia kruszywa na rozwój zarysowania. Zagadnienie to jest również przedmiotem rozważań przedstawionych w pracy.

Słowa kluczowe:

beton, mechanizmy pękania, model rysy fikcyjnej

Bibliografia

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Słowik, M., Stroeven, P. i Akram, A. (2020) „Analiza mechanizmów pękania betonu w mikro i makro skali”, Budownictwo i Architektura / Civil and Architectural Engineering, 19(4), s. 055–065. doi:10.35784/bud-arch.2147.

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Numer Tom 19 Nr 4 (2020)

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