粒子磨损过程的建模和离散元素方法研究其形状效应的研究
Zhengbo Hu1, Junhui Zhang1, Xin Tan2
1National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China.
Materials (Basel, Switzerland)
|August 29, 2024
概括
这项研究提出了一种新的颗粒磨损方法. 磨损增加会降低总体稳定性和相互锁定性,影响机械行为,并可能在测试中高估内部摩擦角度.
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.
- 自然现象建模 自然现象建模
背景情况:
- 颗粒磨损显著影响颗粒状材料的机械行为.
- 现有的模拟磨损的方法缺乏精度和自然的表现.
- 了解磨损效应对于地质技术应用和材料科学至关重要.
研究的目的:
- 为了引入一种新的,基于原则的方法来控制颗粒磨损.
- 为了研究不同磨损度对颗粒聚合物力学的影响.
- 分析颗粒磨损,结构稳定性和织物异构性之间的关系.
主要方法:
- 根据自然现象和机械原理开发了一种新的颗粒磨损技术.
- 使用特定的形状指数验证了磨损方法.
- 对有控制磨损水平的颗粒状聚合物进行了常规的三轴测试.
主要成果:
- 增加的颗粒磨损与减少的协调数和滑动相关,但旋转增加.
- 颗粒磨损反向影响聚合物的结构稳定性和相互锁定.
- 织物异性质,由接触正常力异性质驱动,随着更大的磨损而减少.
结论:
- 这种新磨方法提供了精确的控制,并有效地模仿自然过程.
- 颗粒磨损显著改变颗粒材料的行为,降低稳定性和相互锁定.
- 研究结果表明,传统的三轴测试可能会因为磨损效应而高估内部摩擦角度.
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