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Updated: Feb 28, 2026

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Studying Large Amplitude Oscillatory Shear Response of Soft Materials
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粘土-混合物的动态特征:关于小菌株动态剪切模块和缓冲比率的观点
Bingheng Liu1,2, Yong Wang2, Jianqun Zhu1
1School of Civil Engineering and Architecture, Changzhou Institute of Technology, Changzhou 213032, China.
Materials (Basel, Switzerland)
|February 27, 2026
概括
这项研究表明,粘土-混合物中增加颗粒含量会降低小应变硬度 (G) 并增加阻尼比率 (D). 限制压力增强了刚性,但减少了阻尼.
科学领域:
- 地质技术工程 地质技术工程
- 材料科学 是一种材料科学.
背景情况:
- 废轮胎土混合物在地质工程中用于减轻振动,因为它们的密度低,能耗高.
- 了解粘土-混合物 (CRM) 的小应变刚度对于其有效应用至关重要.
研究的目的:
- 为了研究CRM的小应变刚性特征的演变.
- 为了分析限制压力 (σ3),颗粒含量 (Crubber) 和颗粒大小 (Drubber) 对CRM刚性和阻尼的影响.
主要方法:
- 在CRM样本上进行了共振柱测试,其 σ3,Crubber和Drubber的变化.
- 确定了小型应变硬度特征,包括动态剪切模量 (G) 和缓冲比 (D).
- 哈丁-德尔内维奇方程被用来分析G-γ曲线并获得最大动态剪切模量 (Gmax).
主要成果:
- 限制压力 (σ3) 增加了G,减少了D.
- 增加的颗粒含量 (Crubber) 显著降低了G,增加了D.
- 增加颗粒大小 (Drubber) 略微增加G和增加D.
- 提出了Gmax的经验方程,考虑了s3,Crubber和Drubber.
结论:
- 颗粒通常会抑制CRM中小应变硬度的发展.
- 粘土和颗粒之间的接触面积会影响CRM的机械行为.
- 该研究提供了Gmax的预测模型和CRM中D-γ曲线的经验方程.
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