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Influence of Grain Breakage on Critical State

机译:破损对临界状态的影响

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This paper aims to investigate the influence of grain breakage on the position of the critical state line (CSL).Existing measures of the amount of grain breakage are discussed and a new measure named "relative uniformity" based on the evolution of the uniformity coefficient is proposed.Triaxial tests with different stress paths on granular materials made of limestone grains are carried out.Based on the obtained results,a method for determining the modified relative breakage index and the relative uniformity is proposed using plastic work.A relation between grain breakage measures and the position of the critical state line is then proposed for describing the influence of grain breakage on mechanical properties.
机译:本文旨在研究晶粒破损对临界状态线(CSL)位置的影响。讨论了现有的晶粒破损量测度,并基于均匀度系数的演变提出了一种新的测度“相对均匀度”。在石灰岩颗粒材料上进行了不同应力路径的三轴试验。在所得结果的基础上,提出了利用塑性功确定修正相对破损指数和相对均匀度的方法。然后提出临界状态线的位置,以描述晶粒破碎对机械性能的影响。

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