倪红梅, 杨圣奇. 单轴压缩下岩石材料尺寸效应的数值模拟[J]. 煤田地质与勘探, 2005, 33(5): 47-49.
引用本文: 倪红梅, 杨圣奇. 单轴压缩下岩石材料尺寸效应的数值模拟[J]. 煤田地质与勘探, 2005, 33(5): 47-49.
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NI Hong-mei, YANG Sheng-qi. Numerical simulation on size effect of rock material under uniaxial compression[J]. COAL GEOLOGY & EXPLORATION, 2005, 33(5): 47-49.
Citation: NI Hong-mei, YANG Sheng-qi. Numerical simulation on size effect of rock material under uniaxial compression[J]. COAL GEOLOGY & EXPLORATION, 2005, 33(5): 47-49.
shu

单轴压缩下岩石材料尺寸效应的数值模拟

Numerical simulation on size effect of rock material under uniaxial compression

    摘要
  • 摘要: 考虑到岩石材料的非均质性,应用岩石破裂过程分析系统RFPA2D,对端面有摩擦和无摩擦两种条件下同直径不同长度的岩样,进行了单轴压缩下的数值模拟研究,并对模拟结果寻求了试验验证。结果表明,岩石强度的长度效应是由于岩样端面摩擦效应所致,而并非根源于材料本身的非均质性。

     

    Abstract: Based on the heterogeneity of rock material,rock specimens of the same diameter but of different lengths were carried out to simulate numerically under uniaxial compression by Rock Failure Process Analysis(RFPA2D) code,and numerical simulation results reached good agreements with experimental results.The length effect of rock strength results in the friction effect of end faces,not the heterogeneity of rock material.

     

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