Mechanics and Micromechanics of Interfaces and Joints
Mechanics and Micromechanics of Interfaces and Joints
批准号:
9634632
负责人:
John Hutchinson
金额:
$34.75万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1996
资助国家:
美国
项目状态:
已结题
起止时间:
1996-09-15 至 2002-08-31
中文摘要
这个项目是研究薄膜和多层材料的界面附着力和韧性的微观力学。在最根本的层面上,目的是将微观层面的界面分离联系起来,目的是通过塑性区将微观层面的界面分离与界面韧性的宏观测度联系起来。断裂的总功已被实验证明是断裂的原子或分子功的许多倍。断裂的塑性功只占界面断裂总功的百分之几,这种情况并不少见。该工作所解决的挑战是与断裂过程相关的小尺度裂纹尖端行为。薄膜和层中的大规模屈服效应,以及混合模式加载。越来越多的实验证据表明,在微米到亚微米水平的应变梯度产生的局部硬化超过了传统塑性公式的预测。
英文摘要
9634632 Hutchinson This project is to study the micromechanics of interface adhesion and toughness with applications to thin films and multilayers. At the most fundamental level, the aim is to link interface separation at the microscopic level, the aim is to link interface separation at the microscopic level through the plastic zone to connect with macroscopic measures of interface toughness. The total work of fracture has been shown by experiments to be many times the atomic or molecular work of fracture. It is not uncommon for the plastic work of fracture to be all but a few percent of the total work of fracture of an interface. Amount the challenges addressed by the work are crack tip behavior at small scales linking to the fracture process. large scale yielding effects in films and layers, and mixed mode loadings. There is an increasing body of experimental evidence indicating that strain gradients at the micron to sub-micron level produce local hardening which exceeds that predicted by conventional plasticity formulations.
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Reconstructing the lost cartilaginous epiphyses in extinct archosaurs' limbs
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批准号:EP/Y029356/1
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项目类别:Fellowship
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资助金额:$23.84万
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财政年份:2024
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负责人:John Hutchinson
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依托单位:
The evolution of terrestrial locomotor performance in early tetrapod vertebrates
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批准号:NE/K004751/1
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项目类别:Research Grant
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资助金额:$53.57万
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财政年份:2013
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负责人:John Hutchinson
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依托单位:
Towards the chicken of the future: biomechanical compromises and constraints on locomotion and breathing in broiler chickens
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批准号:BB/I02204X/1
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项目类别:Research Grant
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资助金额:$51.97万
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财政年份:2011
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负责人:John Hutchinson
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依托单位:
Comparative biomechanics and pathology of mammalian feet
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批准号:BB/H002782/1
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项目类别:Research Grant
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资助金额:$55.18万
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财政年份:2009
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负责人:John Hutchinson
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依托单位:
Locomotion in the earliest tetrapods: testing models of terrestriality
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批准号:NE/G005877/1
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项目类别:Research Grant
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资助金额:$27.33万
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财政年份:2009
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负责人:John Hutchinson
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依托单位:
Phylogenetic structural scaling of the appendicular skeleton: relationship with loading regime and locomotor behaviour
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批准号:BB/F000863/1
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项目类别:Research Grant
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资助金额:$42.76万
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财政年份:2008
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负责人:John Hutchinson
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依托单位:
SGER: Formation and Evolution of Localized Structures
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批准号:0736019
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2007
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负责人:John Hutchinson
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依托单位:
Postdoctoral Research Fellowship in Biological Informatics for FY2001
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批准号:0107574
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项目类别:Fellowship Award
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资助金额:$10.0万
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财政年份:2001
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负责人:John Hutchinson
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依托单位:
GK-12 Environment, Materials Science, and Information Technology Themes in Eighth, Ninth and Tenth Grades
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批准号:0086387
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项目类别:Continuing Grant
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资助金额:$117.15万
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财政年份:2001
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负责人:John Hutchinson
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依托单位:
Studies in Fracture and Materials Mechanics
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批准号:9020141
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项目类别:Continuing Grant
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资助金额:$42.85万
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财政年份:1991
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负责人:John Hutchinson
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依托单位:
Quantum Dynamics of State Preparation, Intramolecular Relaxation, and Unimolecular Reaction of Highly Vibrationally Excited Molecules
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批准号:8813841
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1988
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负责人:John Hutchinson
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依托单位:
Studies in Fracture - and Materials-Mechanics
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批准号:8812779
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项目类别:Continuing Grant
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资助金额:$23.87万
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财政年份:1988
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负责人:John Hutchinson
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依托单位:
Unimolecular Dynamics of Isomerization, Fragmentation, and Relaxation of Vibrationally Excited Molecules
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批准号:8503071
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1985
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负责人:John Hutchinson
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依托单位:
Studies in Fracture- and Materials-Mechanics
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批准号:8416392
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项目类别:Continuing Grant
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资助金额:$16.55万
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财政年份:1985
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负责人:John Hutchinson
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依托单位:
Mechanical Sciences: Studies in Fracture- and Materials- Mechanics of Solids
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批准号:8213925
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项目类别:Continuing Grant
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资助金额:$15.0万
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财政年份:1983
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负责人:John Hutchinson
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依托单位:
Studies in Fracture- and Materials-Mechanics
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批准号:7810756
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项目类别:Standard Grant
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资助金额:$21.63万
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财政年份:1978
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负责人:John Hutchinson
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依托单位:
Summer Pre-College Teacher Development Project In Mathematics
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批准号:7713774
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项目类别:Standard Grant
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资助金额:$2.16万
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财政年份:1977
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负责人:John Hutchinson
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依托单位:
Studies in Fracture- and Materials-Mechanics
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批准号:7604019
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项目类别:Continuing Grant
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资助金额:$8.2万
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财政年份:1976
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负责人:John Hutchinson
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依托单位:
海外基金