BLASTING, Volume. 41, Issue 4, 35(2024)
Study on Parameters of Anhydrite RHT Dynamic Model
Numerical simulation is a vital tool for studying the dynamic characteristics of rock, with the accurate determination of models and parameters being the key to ensuring the reliability of simulation results. Among the 34 parameters of the RHT model, 19 parameters can be obtained through experimental and theoretical calculations, but the remaining 15 are challenging to determine. Nineteen basic parameters of anhydrite were obtained through experimental analysis and theoretical calculation to identify the model parameters suitable for anhydrite. Furthermore, the LS-DYNA performed SHPB simulation tests on the 15 challenging parameters. The sensitivity of stress-strain curves to these parameters was compared, and the values were optimized. Parameters with high sensitivity were identified through orthogonal testing. Finally, simulation results were compared with laboratory test results. The findings indicate that RHT parameters B,
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MA Kai, REN Gao-feng, GE Yong-xiang, WANG Fu-cheng, SHI Yi-hu, ZHANG Cong-rui, ZHANG Lu-wei, ZHAO Liang, YU Yan. Study on Parameters of Anhydrite RHT Dynamic Model[J]. BLASTING, 2024, 41(4): 35
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Received: May. 28, 2024
Accepted: Jan. 3, 2025
Published Online: Jan. 3, 2025
The Author Email: Yong-xiang GE (gyxwhut@163.com)