【摘要】 通过实验对横截面周长相同、形状不同的棒在颗粒物质中受到的最大静摩擦力进行了研究.实验结果表明:相同条件下,圆棒、方棒和扁棒受到的最大静摩擦力各不相同.用水平面上颗粒分层、对称分布模型对实验结果进行了定量分析.更多还原

【Abstract】 The maximum static friction on the same cross sectional area and different shape rod immersed in the granular matter is studied experimentally.It is demonstrated that the static friction of the circle,square and flat rods are different in the same conditions.A model constituting of layers of granular matter which are symmetrically distributed is employed to analyze the experimental results qualitatively.更多还原