A study of the dissipative behavior of geomaterials undergoing large deformations
岩土材料大变形耗散行为研究
基本信息
- 批准号:9987677
- 负责人:
- 金额:$ 6.22万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2000
- 资助国家:美国
- 起止时间:2000-03-15 至 2002-02-28
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Abstract9987677The understanding of the response of geomaterials such as soils and rocks is crucial in addressing a variety of problems in geotechnical engineering, environmental engineering, transportation, building and construction technology. Attempts to describe the response of such materials are adaptations of classical plasticity and mixture theory. Recently, a general framework has been developed to study a diverse class of dissipative processes such as slip, twinning, phase transition, and damage in polymer networks. The objective of this award is to generalize the theory further to include the dissipative response of geomaterials.The main features of the theory are: it takes into account the fact that many materials can exist in more than one natural configuration and that, at a given instant, the response is determined by the deformation gradient from all these configurations, giving the material its mixture-like characteristics; when these materials undergo dissipative processes, the underlying natural configurations invariably change; the evolution of the natural configurations is determined in general by a thermodynamic criterion; the material has various means of storing energy; different types of response can be activated if certain thermodynamic criteria are met; and once a particular mechanism is activated, it might be necessary to prescribe the evolution for the mechanism.
摘要9987677了解土壤和岩石等地质材料的响应对于解决岩土工程、环境工程、交通、建筑和施工技术中的各种问题至关重要。 试图描述这种材料的响应是经典塑性和混合物理论的适应。 最近,一个通用的框架已经发展到研究不同类别的耗散过程,如滑移,孪生,相变,和损坏的聚合物网络。 该理论的主要特点是:它考虑到许多材料可以以一种以上的自然形态存在,在给定的时刻,响应由所有这些形态的变形梯度决定,使材料具有混合物的特性;当这些材料经历耗散过程时,基本的自然结构总是变化的;自然结构的演变通常由热力学标准决定;材料具有各种储存能量的手段;如果满足某些热力学标准,可以激活不同类型的响应;并且一旦特定机制被激活,可能需要规定该机制的演进。
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)
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Kumbakonam Rajagopal其他文献
Kumbakonam Rajagopal的其他文献
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{{ truncateString('Kumbakonam Rajagopal', 18)}}的其他基金
Collaborative Research: Strain-limiting Cosserat Rods with Applications to Modeling Biological Fibers
合作研究:应变限制 Cosserat 棒在生物纤维建模中的应用
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2307563 - 财政年份:2023
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1300500 - 财政年份:2013
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$ 6.22万 - 项目类别:
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1048910 - 财政年份:2010
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1028894 - 财政年份:2010
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$ 6.22万 - 项目类别:
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REU Site: Interdisciplinary Research on Granular and Particulate Materials
REU 网站:颗粒和颗粒材料的跨学科研究
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0851828 - 财政年份:2009
- 资助金额:
$ 6.22万 - 项目类别:
Continuing Grant
CCLI: Comprehensive Course Redesign: An Introduction to Mechanics of Materials
CCLI:综合课程重新设计:材料力学导论
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0837619 - 财政年份:2009
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$ 6.22万 - 项目类别:
Standard Grant
Development of a Model for Liquefaction and the Study of the Propagation of Seismic Waves in Fluid Saturated Porous Media
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0301608 - 财政年份:2003
- 资助金额:
$ 6.22万 - 项目类别:
Continuing Grant
SGER: A Thermomechanical Framework for the Analysis of Liquefaction
SGER:液化分析的热机械框架
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0234009 - 财政年份:2002
- 资助金额:
$ 6.22万 - 项目类别:
Standard Grant
An Investigation into Crystallization and the Subsequent Inelastic Response of Semi-Crystalline Polymers from a Continuum Perspective
从连续体角度研究半晶聚合物的结晶和随后的非弹性响应
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9800510 - 财政年份:1998
- 资助金额:
$ 6.22万 - 项目类别:
Standard Grant
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