- Tytuł:
- Mesoscale modeling of fracture in cement and asphalt concrete
- Autorzy:
-
Al-Jelawy, Haider M.
Al-Rumaithi, Ayad
Fadhil, Aqeel T.
Naji, Alaa J. - Powiązania:
- https://bibliotekanauki.pl/articles/35540382.pdf
- Data publikacji:
- 2021
- Wydawca:
- Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
- Tematy:
-
mesoscale model
damage model
fracture energy
cement concrete
asphalt concrete
disk-shaped compact tension test - Opis:
- In this paper, mesoscale modeling is performed to simulate and understand fracture behavior of two concrete composites: cement and asphalt concrete using disk-shaped compact tension (DCT) tests. Mesoscale models are used as alternative to macroscale models to obtain better realistic behavior of composite and heterogeneous materials such as cement and asphalt concrete. In mesoscale models, aggregate and matrix are represented as distinct materials and each material has its characteristic properties. Disk-shaped compact tension test is used to obtain tensile strength and fracture energy of materials. This test can be used as a better alternative to other tests such as three points bending tests because it is more convenient for both field and laboratory specimens in addition to its accurate results. Comparing the numerical results of the mesoscale models of cement and asphalt concrete specimens with experimental data shows that these models can predict the behavior of these composite materials very well as seen in the curves of load-crack mouth opening displacement (CMOD). Also, the mesoscale modeling highlights the variability of crack direction where it is dependent on the random distribution of aggregate.
- Źródło:
-
Scientific Review Engineering and Environmental Sciences; 2021, 30, 3; 439-450
1732-9353 - Pojawia się w:
- Scientific Review Engineering and Environmental Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł