Impacts of Mineralogy on Aggregate Crushing
矿物学对骨料破碎的影响
基本信息
- 批准号:2416332
- 负责人:
- 金额:$ 52.82万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2024
- 资助国家:美国
- 起止时间:2024-01-01 至 2025-12-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
This project aims to unravel the impacts of mineralogy on aggregate crushing and understand sequential fragmentation mechanisms in granular assemblies via multi-scale experimental, numerical, and machine learning investigations. Particle crushing occurs in railway ballast, granular fault gouge, high tailing dams, and is also relevant to pile installation and offshore foundation design. Crushing and grinding are essential in mining operations, as well as manufacturing processes in the pharmaceutical, agricultural and food sectors. However, these operations are still highly energy-inefficient. Through this research, the PIs will gain a fundamental understanding of the effect of mineral heterogeneity on particle breakage. Findings will contribute to optimizing particulate material handling in mining operations, deep foundation design and pharmaceutical and agricultural manufacturing techniques. Modeling the evolution of polymineralic aggregate microstructure and mechanical behavior will also serve the deployment of penetrometer devices for in-situ soil characterization and wheeled vehicles for terrestrial and extraterrestrial exploration. Besides their research tasks, the PIs will create multi-semester undergraduate research opportunities and international research experiences for students, and integrate diversity, equity and inclusion training into their scholarly activities in partnership with Georgia Tech organizations. Both PIs are committed to enhance public awareness on the critical role of geotechnical engineering in addressing energy and sustainability challenges.Most natural geomaterials are polymineralic, and yet, there is no known experimental method that can disentangle the effects of morphology and mineralogy on aggregate crushing. The goal of the project is to unveil the yet-unknown mechanisms of dry polymineralic grain crushing and to enable energy-efficient industrial applications by optimizing dry aggregate breakage. Towards this goal, the PIs will (1) Measure intra- and inter-mineral bonding properties in quartzitic and granitic aggregates; (2) Conduct single-particle crushing tests on monomineralic and polymineralic aggregates; (3) Model fragmentation processes during these tests with the Distinct Element Method (DEM); (4) Image aggregate assemblies during monotonic and cyclic loading by high-resolution X-ray computed tomography; (5) Simulate sequential breakage and fabric evolution in heterogeneous aggregate assemblies with the DEM; (6) Predict self-organization and ultimate fabric by Machine Learning. Several fundamental questions will be addressed, mainly: Can heterogeneous granular assemblies self-organize upon cyclic loading and particle breakage? Do fragments evolve towards an asymptotic size and/or shape upon sequential breakage? The synergistic deployment of experimental, numerical, and artificial intelligence methods proposed in this project has the potential to transform the current practice of geomaterial characterization and behavior prediction.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
该项目旨在揭示矿物学对骨料破碎的影响,并通过多尺度实验,数值和机器学习研究了解颗粒组件中的顺序破碎机制。颗粒破碎不仅发生在铁路道碴、粒状断层泥、高尾矿坝中,而且与桩基安装和海上基础设计有关。破碎和研磨在采矿作业以及制药、农业和食品行业的制造过程中至关重要。然而,这些操作仍然是高度节能的。通过这项研究,PI将获得矿物非均质性对颗粒破碎的影响的基本认识。研究结果将有助于优化采矿作业中的颗粒材料处理,深基础设计以及制药和农业制造技术。对多矿物聚集体微观结构和力学行为的演变进行建模也将有助于部署用于现场土壤表征的磁流变仪设备和用于陆地和外星探索的轮式车辆。除了他们的研究任务,PI将为学生创造多学期的本科研究机会和国际研究经验,并将多样性,公平和包容性培训融入他们的学术活动与格鲁吉亚技术组织合作。这两个PI都致力于提高公众对岩土工程在解决能源和可持续发展挑战中的关键作用的认识。大多数天然地质材料是多矿物的,然而,没有已知的实验方法可以解开形态和矿物学对骨料破碎的影响。该项目的目标是揭示干多矿物颗粒破碎的未知机制,并通过优化干骨料破碎实现节能的工业应用。为实现这一目标,专业人员将(1)测量石英和花岗岩骨料中矿物内部和矿物之间的结合特性;(2)对单矿物和多矿物骨料进行单颗粒破碎试验;(3)用离散单元法模拟这些试验期间的破碎过程;(4)通过高分辨率X射线计算机断层扫描对单调和循环加载期间的骨料组合体进行成像;(5)利用离散元模拟异质聚集体的有序破碎和结构演化;(6)利用机器学习预测自组织和最终结构。几个基本问题将得到解决,主要是:可以异质颗粒组装自组织循环加载和颗粒破碎?在连续断裂后,碎片是否会朝着渐进的尺寸和/或形状演变?该项目中提出的实验、数值和人工智能方法的协同部署有可能改变当前地质材料表征和行为预测的实践。该奖项反映了NSF的法定使命,并被认为值得通过使用该基金会的智力进行评估来支持优点和更广泛的影响审查标准。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Chloe Arson其他文献
Site-specific spectral response of seismic movement due to geometrical and geotechnical characteristics of sites
- DOI:
10.1016/j.soildyn.2008.01.015 - 发表时间:
2009-01-01 - 期刊:
- 影响因子:
- 作者:
Behrouz Gatmiri;Pouneh Maghoul;Chloe Arson - 通讯作者:
Chloe Arson
Chloe Arson的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Chloe Arson', 18)}}的其他基金
BRITE Pivot: Micro-Macro Modeling of Reactive Flow and Rock Weathering Enhanced by Artificial Intelligence
BRITE Pivot:人工智能增强的反应流和岩石风化的微观-宏观建模
- 批准号:
2416344 - 财政年份:2024
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
Conference: Engineering Mechanics Education Workshop; Atlanta, Georgia; 6 June 2023
会议:工程力学教育研讨会;
- 批准号:
2321215 - 财政年份:2023
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
Impacts of Mineralogy on Aggregate Crushing
矿物学对骨料破碎的影响
- 批准号:
2134311 - 财政年份:2023
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
BRITE Pivot: Micro-Macro Modeling of Reactive Flow and Rock Weathering Enhanced by Artificial Intelligence
BRITE Pivot:人工智能增强的反应流和岩石风化的微观-宏观建模
- 批准号:
2135584 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
CAREER: Multiphysics Damage and Healing of Rocks for Performance Enhancement of Geo-Storage Systems - A Bottom-Up Research and Education Approach
职业:岩石的多物理损伤和修复以增强地质存储系统的性能 - 自下而上的研究和教育方法
- 批准号:
1552368 - 财政年份:2016
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
Coupled Geomechanical Processes and Energy Technologies - Research Experience at Ecole des Ponts Paris Tech (ENPC, France)
耦合地质力学过程和能源技术 - 巴黎理工学院(ENPC,法国)的研究经验
- 批准号:
1357908 - 财政年份:2014
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
International Workshop on Education of Future Geotechnical Engineers in Response to Emerging Multi-scale Soil-Environment Problems; Cambridge, UK; September 5-6, 2014
未来岩土工程师应对新出现的多尺度土壤环境问题教育国际研讨会;
- 批准号:
1443990 - 财政年份:2014
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
Collaborative Research: Salt Rock Microstructure and Deformation
合作研究:盐岩微观结构与变形
- 批准号:
1362004 - 财政年份:2014
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
相似海外基金
EA: Acquisition of analytical equipment for environmental biogeochemistry and mineralogy
EA:购置环境生物地球化学和矿物学分析设备
- 批准号:
2323242 - 财政年份:2024
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
Impacts of Mineralogy on Aggregate Crushing
矿物学对骨料破碎的影响
- 批准号:
2134311 - 财政年份:2023
- 资助金额:
$ 52.82万 - 项目类别:
Standard Grant
A Theoretical Basis for Mineralogy and the Behaviour of Minerals in Earth Processes
矿物学和矿物在地球过程中的行为的理论基础
- 批准号:
RGPIN-2020-05675 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Discovery Grants Program - Individual
Effect of mineralogy on the low temperature electrolysis of iron ore
矿物学对铁矿石低温电解的影响
- 批准号:
560190-2020 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Alliance Grants
Geology, mineralogy, lithogeochemistry, and genesis of mineralization in the Silurian Whisker Valley Cu-Au system, Newfoundland Appalachians
纽芬兰阿巴拉契亚志留纪晶须谷铜-金系统的地质学、矿物学、岩石地球化学和矿化成因
- 批准号:
576709-2022 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Alliance Grants
The Genesis and Evolution of Metallic Ore Deposits Systems: Insights and Constraints from Mineralogy.
金属矿床系统的起源和演化:矿物学的见解和约束。
- 批准号:
RGPIN-2017-05883 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Discovery Grants Program - Individual
Mapping the mineralogy of dust in the atmosphere to help promote sustainable aviation
绘制大气中灰尘的矿物学图,以帮助促进可持续航空
- 批准号:
2858353 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Studentship
CAREER: Harnessing Mineralogy and Polymer Science to Elucidate Mechanisms and Mitigation Strategies for Mineral Scaling in Membrane Desalination
职业:利用矿物学和聚合物科学阐明膜淡化中矿物结垢的机制和缓解策略
- 批准号:
2145627 - 财政年份:2022
- 资助金额:
$ 52.82万 - 项目类别:
Continuing Grant
The Genesis and Evolution of Metallic Ore Deposits Systems: Insights and Constraints from Mineralogy.
金属矿床系统的起源和演化:矿物学的见解和约束。
- 批准号:
RGPIN-2017-05883 - 财政年份:2021
- 资助金额:
$ 52.82万 - 项目类别:
Discovery Grants Program - Individual
A Theoretical Basis for Mineralogy and the Behaviour of Minerals in Earth Processes
矿物学和矿物在地球过程中的行为的理论基础
- 批准号:
RGPIN-2020-05675 - 财政年份:2021
- 资助金额:
$ 52.82万 - 项目类别:
Discovery Grants Program - Individual