Experimental study on the dynamic tensile mechanical properties of marble under water and oil conditions
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1
College of Architecture and Engineering, Chongqing University of Science and Technology, Chongqing401331, China
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Chongqing University, Chongqing 400000, China
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College of Architecture and Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
Submission date: 2023-04-21
Final revision date: 2023-06-18
Acceptance date: 2023-06-20
Publication date: 2023-09-18
Archives of Civil Engineering 2023;3(3)
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ABSTRACT
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.