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材料强度及灾变的跨尺度力学研究
  • 项目名称：材料强度及灾变的跨尺度力学研究
  • 项目类别：创新研究群体科学基金
  • 批准号：10721202
  • 申请代码：A0203
  • 项目来源：国家自然科学基金
  • 研究期限：2008-01-01-2010-12-31
  • 项目负责人：魏悦广
  • 负责人职称：研究员
  • 依托单位：中国科学院力学研究所
  • 批准年度：2007
中文摘要：

在过去三年里，由力学所承担的国家自然科学基金委员会创新群体项目"材料强度及灾变的跨尺度力学研究"，无论是发展力学理论、揭示新现象新规律、还是解决高科技基础难题都有突出表现。由三位院士和五位杰青为骨干的该研究团队在创新群体的研究方向上作出了具有重要国际影响的成果建立了同时考虑应变梯度效应和表-界面效应的跨尺度力学理论和基于原子模拟的分子-集团统计准连续方法，从而为材料的跨尺度力学行为测量和表征建立了基础；在材料微纳米结构形成、演化及其对总体性能影响的精细观测方面，揭示出了系列新规律，例如发现岛状孪生机制、孪生晶粒反Hall-Petch关系、纳米加工硬化等；在对生物材料微结构特征的力学行为研究中发现负泊松比效应；在对陶瓷表面微结构的抗热冲击性能研究中，找到了一种优异的表面微结构形式获得了超强的抗热冲击性能；在对金属玻璃材料的剪切带研究中，获得了剪切带形成的新机制；在对生物微粘附研究中，揭示出了生物的粘附与脱粘机制。由上述研究成果初步构成了有鲜明特色的材料强度及灾变的跨尺度力学研究主体。通过上述研究，共发表SCI论文140多篇，其中JMPS三篇、PRL六篇；获国家自然科学二等奖一项。

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期刊论文
加卸载响应比方法在结构灾变预测中的应用
Deformation Twinning Generates Zero Macro-Strain in Nanocrystalline Metals
Molecular dynamics study of mechanical behaviour of screw dislocation during cutting with diamond ti
Scaling function in conical indentation in elastic plastic solids
Twinning partial multiplication at grain boundary in nanocrystalline fcc metals
Plastic deformation of nanocrystalline nickel
Local Bending of a Thin Film on Viscous Layer
Extracting Nanobelt Mechanical Properties from Nanoindentation
Peeling behavior of a bio-inspired nano-film on a substrate,
Dynamic behaviors of mode III interfacial crack under a constant loading rate,
Enhanced Thermal Shock Resistance of Ceramics through Biomimetically Inspired Nano?ns
Load-Unload Response Ratio and its application to estimate future seismicity of Qiandao-lake region
Discussion on the contact width in generalized plain strain JKR model for isotropic solids
Strain gradient theory bsed on a New framework of non-local model
ANALYSIS OF THE THERMAL STABILITY OF COPPER SPECIMENS DEFORMED BY HIGH-PRESSURE TORSION
On mechanical properties of metallic glass and its liquid vitrification characteristics
Basic mechanical behaviors and mechanics of shear banding in BMGs
The capillary force in micro and nano-indentation with different indenter shapes
Damage assessment and preservation of suspending system of Yongle-Big-Bell
The main factor influencing the tensile properties of surface nano-crystallized graded materials,
Adhesive models to understand the sensitivity of bio-molecules to environmental signals
Tensionless contact of a finite beam resting on Reissner foundation
Growth mechanism and joint structure of ZnO tetrapods
Smaller Deborah number inducing more serrated plastic flow of metallic glass.
Numerical and theoretical investigations of the tensile failure of shrunk cement-based composites
纳米晶Ni疲劳行为的实验研究
高压扭转铜试样的微观组织与压缩性能
The peak point of LURR and its significance， Concurrency and computation, Practice and Experience,
Critical Biot’s number determines the sensitivity of spherical ceramics to thermal shock
Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain
Transitions between different contact models
Strong Strain Hardening in Nanocrystalline Nickel
Eigenfrequency Computation of Beam/Plate Carrying Concentrated Mass/Spring and Its Application to Re
Elastic deformation of soft membrane with finite thickness induced by a sessile liquid droplet.
Precursor film in dynamic wetting, electrowetting and electro-elasto-capillarity.
Nanoscale periodic corrugation to dimple transition due to “beat” in a bulk metallic glass
Orientation-dependent adhesion strength of a rigid cylinder in non-slipping contact with a transvers
Mechanical Behavior of Nanometer Ni by Simulating Nanoindentation
Effect of Water on Brittle Fracture of SiO2 by Molecular Dynamics
Mixed mode failure of interface between metal film and ceramic substrate in peel test
Energy dissipation in fracture of bulk metallic glasses via inherent competition between local soft
Dynamic fracture instability of tough bulk metallic glass
Static and Dynamic Structural Modeling Analysis of Atomic Force Microscope
Response to "Comment on 'Deformation mechanisms of face-centeredcubic metal nanowires with twin boun
Evolution of localized damage zone in heterogeneous media
A simple method to simulate shrinkage-induced cracking in cement-based composites by lattice-type mo
New Strain Gradient Theory and Analysis
纳米晶 Ni 晶间断裂的数值模拟
合金材料超高周疲劳行为的基本特征和影响因素
环境介质对40Cr结构钢高周和超高周疲劳行为的影响
Role of vertical component of surface tension of the droplet on the elastic deformation of PDMS memb
Ab initio study of ZnO based gas sensing mechanisms: Surface reconstruction and charge transfer.
Electrowetting on a lotus leaf
Shape effects on the yield stress and deformation of silicon nanowires: A molecular dynamics simulat
Adsorption of formaldehyde molecule on the intrinsic and Al-doped graphene: A first principle study.
A unified guide to two opposite size effects in nano elastic materials,
A Thin Liquid Film and Its Effects in an Atomic Force Microscopy Measurement,
Universal Biot number determining the stress duration and the susceptibility of ceramic cylinders to
An Elasto-plastic Damage Constitutive Theory Based on Pair Functional Potentials and Slip Mechanism,
Trans-scale mechanics – looking for the missing links between continuum and micro/nanoscopic reality
A method to determine fracture toughness using cube-corner indentation.
Molecular/cluster statistical thermodynamics methods to simulate quasi-static deformations at finit
Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals
Universal Biot number determining stress duration and susceptibility of ceramic cylinders to quenchi
An extension of the two dimensional JKR theory to the case with a large contact width
Determination of plastic properties by instrumented spherical indentation:Expanding cavity model and
Damage evolution induced catastrophe and its significance in forecasting terrestrial disasters
A comparative study of Young’s modulus of single-walled carbon nanotube by CPMD, MD, and first princ
MECHANISMS UNDERLYING TWO KINDS OF SURFACE EFFECTS ON ELASTIC CONSTANTS
Grain refinement of pure Ti during plastic deformation
Analytical method of predicating the instabilities of a micro arch-shaped beam under electrostatic l
Size-dependent adhesion strength of a single viscoelastic fiber
Deformation of PDMS membrane and microcantilever by a water droplet: Comparison between Mooney- Ri
Failure process analysis of cement under explosive loading with a generalized driven nonlinear thres
Atomistic simulation on size-dependent yield strength and defects evolution of metal nanowires.
First principles based predictions of the toughness of a metal/oxide interface
Alternating starvation of dislocations during plastic yielding in metallic nanowires
Numerical study of pile-up in bulk metallic glass during spherical indentation
高压扭转Cu试样微观组织的热稳定性分析
纳米晶材料变形行为的微观力学分析
有限变形下的后继屈服面演化规律研究
美国西部地区加卸载响应比的时空演化及地震活动性分析
加卸载响应比与损伤变量关系研究
地震条件下损伤-愈合模型的初步研究
具有梯度结构表层301不锈钢的压缩性能
On the contact width in generalized plain strain JKR model for isotropic solids
基于球形压入法提取材料的塑性力学参数
Trans-scale mechanics: looking for the missing links between continuum and micro/nanoscopic reality
Simulations of Mechanical Behavior of Polycrystalline Copper with Nano-Twins
一类蚂蚁黏附系统的实验研究
微纳米尺度下材料性能多尺度模拟方法进展
加卸载响应比——地震预测与力学的交叉
纤维复合材料刚度设计的力学原理及其应用
Inverse analysis determining interfacial properties between metal film and ceramic substrate with an adhesive layer
金属薄膜单轴拉伸过程中的等效性能研究
构元组集损伤断裂模型及其与内聚区模型的比较
汶川8级地震前加卸载响应比的大尺度异常
汶川余震序列的加卸载响应比分析
固体灾变性破坏现象
纳米晶Ni晶间断裂的数值模拟
DETERMINATION OF INTERFACIAL MECHANICAL PARAMETERS FOR AN Al/EPOXY/Al2O3 SYSTEM BY USING PEEL TEST SIMULATIONS
An Elasto-plastic Damage Constitutive Theory Based on Pair Functional Potentials and Slip Mechanism
三轴围压下砂浆弹塑性损伤变形过程的细观力学分析
魏悦广的项目
采用薄膜撕裂方法模拟和测量微纳米厚度薄膜的界面粘结能
期刊论文 33
纳米结构材料力学行为的国际理论与应用力学研讨会
　纳米材料及结构的力学新原理及精细表征技术研究
期刊论文 41
固体力学
期刊论文 2
高温环境下材料及结构的层裂及热防护研究
期刊论文 17 会议论文 6
材料强度及灾变的跨尺度力学研究
期刊论文 194 会议论文 37
热失配致复合材料结构界面层裂及热-力等效试验研究
期刊论文 11
热冲击及热失配下界面层裂的跨尺度表征及热-力等效实验研究
期刊论文 29 会议论文 23
非线性力学中的对偶性—互补性—对称性IUTAM研讨会
材料纳米力学行为的连续与准连续表征理论和方法研究
期刊论文 61 会议论文 38
RGC 与 NSFC 联合基金会的例行会议
考虑离散与连续关联的跨尺度方法及对先进材料变形机理的表征
期刊论文 1
胶结界面失稳破坏及应力动态传递的实验和理论研究