| 岩石在不同加载波条件下能量耗散的理论探讨 |
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| 引用本文： | 李夕兵,古德生.岩石在不同加载波条件下能量耗散的理论探讨[J].爆炸与冲击,1994,14(2):129-139. |
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| 作者姓名： | 李夕兵 古德生 |
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| 作者单位： | 中南工业大学资源开发系 |
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| 摘 要： | 采用脆性体动态断裂准则和富氏分析方法，给出了矩形波、钟形波和指数衰减波加载于岩石的能量耗散差异。在此基础上，就应力脉冲的形状、延续时间等对岩石破碎效果的影响进行了讨论，得到了与不同加载波下岩石耗能实验研究相吻合的结果。
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| 关 键 词： | 岩石动力学 能量耗损 应力波 破碎 |
ENERGY DISSIPATION OF ROCK UNKER IMPULSIVE LOADING WITH DIFFERENT WAVEFORMS |
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| Li Xibing,GuDesheng.ENERGY DISSIPATION OF ROCK UNKER IMPULSIVE LOADING WITH DIFFERENT WAVEFORMS[J].Explosion and Shock Waves,1994,14(2):129-139. |
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| Authors: | Li Xibing GuDesheng |
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| Abstract: | Using the dynamic fractural criterion for brittle materials and the Fourier transform method,this paper analyses energy dissipation of rock under impulsive loading with different waveforms,such as rectangular,symmetric bell-shaped and exponential-attenuating pulses,respectively. On this basis,the effects of both shapes and durations of stress pulses on rock fragmentation have been discussed and compared with each other.The above analytical results are ingood agreement with the experimental investigation on rock energy dispersion and fragmentativedegree under impulsive loading with different pulse shapes and durations. |
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| Keywords: | rock fragamentation rook dynamics energy dissipation stress pulses |
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