魏悦广

• 1:中国科学院力学研究所非线性力学开放实验室 北京 100080 1999年度国家杰出青年科学基金获得者

摘要(Abstract)：

简要综述了近年来微米尺度金属试样的实验结果及尺度效应现象、关于考虑尺度效应的唯象学理论——塑性应变梯度理论、关于金属/陶瓷界面断裂的宏、微观理论结果的差异及尺度效应、关于薄模脱胶问题的尺度效应及近年来提出和发展的几种材料细观结构的断裂过程区模型。较系统地刻划了固体力学尺度效应宏微观相互关联的理论和方法。

关键词(KeyWords)： 尺度效应;塑性应变梯度理论;薄膜脱胶;断裂过程区模型

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 魏悦广

Email:

参考文献(References)：

• [1] Stelmashenko N A, Walls M G, Brown L M et al. Microindentations on W and Mo priented single crystals: An STM study. Acta Metall Mater,1993, 41: 2855．
• [2] Ma Q, Clarke D R. Size dependent hardness of solver single crystals.J. Mater. Res., 1995, 10(4) : 853．
• [3] Fleck N A, Muller G M, Ashby M F et al. Strain gradient plasticity:Theory and experiment. Acta Metall. Mater., 1994, 42: 475．
• [4] Stolken J S, Evans A G. A microbend test methed for measuring the plasticity length scale. Acta Mater., 1998, 46: 5109．
• [5] Bazant Z, Chen E P. Scaling of structural failure. Appl. Mech.Rev., 1997, 50(10) : 593．
• [6] Fleck N A, Hutchinson J W. A phenomenological theory for strain gradient effects in plasticity. J. Mech. Phys. Solids, 1993, 41(12) :1825．
• [7] Fleck N A, Hutchinson J W. Strain gradient plasticity. Adv. Applied Mech., 1997, 33: 295．
• [8] Gao H, Huang Y, Nix W D, Hutchinson J W. Mechanism-based strain gradient plasticity-I. Theory. J. Mech. Phys. Solids, 1999, 47:1239．
• [9] Aifantis E C. On the role of gradients in the localization of deformation and fracture. Int J. Engng. Scien., 1992, 30: 1279．
• [10] 黄克智,黄永刚编著.固体本构关系,北京:清华大学出版社,1999,383．
• [11] Chen J Y, Wei Y, Huang Y et al. The crack tip fields in strain gradient plasticity: the asymptotic and numerical analyses. Eng. Fract.Mech., 1999, 64: 625．
• [12] Begley M R, Hutchinson J W. The mechanics of size-dependent indentation. J. Mech. Phys. Solids, 1998, 46(10) : 1089．
• [13] Ho C M, Tai Y C. Micro-electro-mechanical-systems(MEMS) and fluid flows. Annu. Rev. Fluid Mech., 1998, 30: 579．
• [14] 余寿文.复杂微力-电系统的微尺度力学,力学进展,1995,25(2) :249．
• [15] 魏悦广.机械微型化所面临的科学难题-尺度效应,世界科技研究与发展,1999,21(6) .
• [16] Hong T, Smith J R, Srolovitz D J. Theory of metal-ceramic adhesion, Acta metall. Mater., 1995, 43(7) : 2721．
• [17] Evans A G, Hutchinson J W, Wei Y. Interfece adhesion: effects of plasticity and segregation. Acta mater., 1999,47(15) : 4093．
• [18] Tvergaard V, Hutchinson J W. The relation between crack growth resistance and fracture process parameters in elastic-plastic solids. J.Mech. Phys. Solids, 1992, 40: 1377．
• [19] Tvergaard V, Hutchinson J W. The influence of plasticity on mixed mode interface toughness. J. Mech. Phys. Solids, 1993, 41: 1119．
• [2O] Wei Y, Hutchinson J W, Mixed mode interface toughness of metal/ceramic joints. Mat. Res. Soc.Symp.Proc., 1996,409: 163．
• [21] Wei Y, Hutchinson J W. Nonlinear delamination mechanics for thin films. J. Mech. Phys. Solids, 1997, 45(7) : 1137．
• [22] Lipkin D M, Clarke D R, Evans A G. Effect of interfacial carbon on adhesion and toughness of gold-sapphire interfaces, Acta Mater., 1998, 46(13) : 4835．
• [23] Wei Y, Hutchinson J W. Steady-state crack growth and work of fracture for solids characterized by strain gradient plasticity. J. Mech. Phys. Solids, 1997, 45(8) : 1253．
• [24] Wei Y, Hutchinson J W. Interface strength, work of adhesion and plasticity in the peel test. Int. J. Fracture, 1998, 93: 315．
• [25] 魏悦广.金属薄膜沿陶瓷基界面脱胶的微尺度力学研究,中国科学A,2000,30(2) .
• [26] Needleman A. A continuum model for void nucleation by inclusion debonding. J. Applied Mech., 1987, 54: 525．
• [27] Suo Z, Shih C F, Varias A G. A theory for cleavage cracking in the presence of plastic flow. Acta metall. Mater., 1993, 41: 1551．
• [28] Wei Y, Hutchinson J W. Models of interface separation accompanied by plastic dissipation at multiple scales. Int. J. Fracture, 1999, 95: 1．