- Tytuł:
- Experimental study on the dynamic tensile mechanical properties of marble under water and oil conditions
- Autorzy:
-
Li, Chaoxin
Liu, Dongyan
Zhu, Yunhui - Powiązania:
- https://bibliotekanauki.pl/articles/27312136.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
rozciąganie dynamiczne
pręt Hopkinsona
rozpraszanie energii
symulacja numeryczna
marmur
woda
olej
dynamic tensile
Hopkinson bar
energy dissipation
numerical simulation
marble
water
oil - Opis:
- To investigate the dynamic tensile properties and energy dissipation characteristics of marble in three different conditions: dry, water-saturated, and oil-saturated, a Brazilian disk splitting test was conducted using a 50 mm diameter Hopkinson pressure bar (SHPB) device. The findings indicate that the peak strain and dynamic tensile strength of the three conditions increase with strain rate, exhibiting a clear strain rate effect. Additionally, lubricating effects of water and oil weaken internal shear sliding friction, thus promoting crack expansion. Furthermore, immersion of fluid in marble weakens the cementation of internal mineral particles, leading to lower tensile strength of marble saturated with water and oil compared to dry marble under dynamic impact. When analyzing the energy dissipation of marble, both the absorption energy and dissipation energy density increase with oil strain rate, indicating a positive correlation. Moreover, numerical results obtained from ANSYS/LS-DYNA correspond well with experimental data, thus verifying and interpreting the experimental outcomes.
- Źródło:
-
Archives of Civil Engineering; 2023, 69, 3; 317--330
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł