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Force transmission in three-dimensional hexagonal-close-packed granular arrays with point defect submitted to a point load

机译:在点缺陷作用于点载荷的三维六边形密堆积颗粒阵列中的力传递

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摘要

We employ the aluminum-plastic board and carbon paper technique to research the contact forces at the bottom boundary of three-dimensional ordered granular arrays with point defects in response to a point load. Our results illuminate that the point defect in the main force chains affects the distribution and transmission of the force greatly while the point defect in the non-main force chains has little effect on the transmission of the force. We further explain these experimental results with a force transmission model. In addition, we find that the point defect in a main force chain not only breaks off this main force chain but also alters the magnitude and direction of other main force chains.
机译:我们采用铝塑板和碳纸技术研究了响应点载荷而具有点缺陷的三维有序颗粒阵列的底部边界处的接触力。我们的结果表明,主力链中的点缺陷对力的分布和传递有很大影响,而非主力链中的点缺陷对力的传递影响很小。我们用力传递模型进一步解释了这些实验结果。此外,我们发现主力链中的点缺陷不仅会断开该主力链,而且还会改变其他主力链的大小和方向。

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