Stress concentration around a nanovoid near the surface of an elastic half-space

Mi C.; Kouris D.

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Stress concentration around a nanovoid near the surface of an elastic half-space

机译：弹性半空间表面附近的纳米空隙周围的应力集中

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Stress concentrations typically occur near discontinuities in structural elements and are often responsible for crack initiation. The aim of this study is to assess the stress concentration effects in the vicinity of a nanovoid located near a free surface. A semi-analytical investigation was carried out using the method of displacement potentials and coherent surface models. We investigated the dependence of stress concentration on a few important parameters like surface properties, external loads, bulk properties, as well as void size and location. Our analysis highlighted a few possible combinations of governing parameters that can reduce, prevent, and even reverse stress concentrations in nanoporous media.

机译：应力集中通常发生在结构单元的不连续附近，并且通常是导致裂纹萌生的原因。这项研究的目的是评估位于自由表面附近的纳米空隙附近的应力集中效应。使用位移电位和相干表面模型的方法进行了半分析研究。我们研究了应力集中对一些重要参数的依赖性，这些重要参数包括表面特性，外部载荷，体积特性以及空隙尺寸和位置。我们的分析强调了控制参数的几种可能组合，这些参数可以减少，防止甚至逆转纳米多孔介质中的应力集中。

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《International Journal of Solids and Structures》 |2013年第18期|共12页
作者
Mi C.; Kouris D.;
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原文格式 PDF
正文语种 eng
中图分类固体力学;
关键词
Displacement potentials method; Half-space; Nanovoid; Stress concentration;

机译：位移势法;半空间;纳米空隙;应力集中;

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专利

1. Stress concentration around a nanovoid near the surface of an elastic half-space [J] . Mi C., Kouris D. International Journal of Solids and Structures . 2013,第18期

机译：弹性半空间表面附近的纳米空隙周围的应力集中
2. Hyperbolic-elliptic model for surface wave in a pre-stressed incompressible elastic half-space [J] . Khajiyeva L. A., Prikazchikov D. A., Prikazchikov L. A. Mechanics research communications . 2018,第期

机译：预应力不可压缩弹性半空间中表面波的双曲椭圆模型
3. Stresses due to moving load on the surface of an irregular magneto-elastic monoclinic half-space under hydrostatic initial stress [J] . Mistri Kshitish Ch, Singh Abhishek Kumar, Yadav Ram Prasad, Mechanics of Advanced Materials and Structures . 2017,第9a16期

机译：由于在静水初始应力下的不规则磁弹性单斜空间的表面上的移动负荷导致的应力
4. Edge dislocation emission from nanovoid with the effect of neighboring nanovoids and surface stress [C] . Yingxin Zhao, Qihong Fang, Youwen Liu, International conference on fracture . 2013

机译：纳米空隙的边缘位错发射受邻近纳米空隙和表面应力的影响
5. Layered Cartesian half-space models for Earth's elastic response to contemporary surface loading phenomena. [D] . Zhou, Hao. 2008

机译：分层笛卡尔半空间模型，用于地球对当代表面载荷现象的弹性响应。
6. Refined boundary conditions on the free surface of an elastic half-space taking into account non-local effects [O] . R. Chebakov, J. Kaplunov, G. A. Rogerson -1

机译：考虑到非局部效应弹性半空间自由表面上的精细边界条件
7. Stress concentration around a nanovoid near the surface of an elastic half-space [O] . Mi Changwen, Kouris Demitris 2013

机译：弹性半空间表面附近纳米空隙周围的应力集中
8. Four Studies in the Theory of StressnConcentration PART I The Effect of Holes on the Strength of Materials under Complex Stress Systems PART II Stress Concentration due to Holes and Grooves other than Elliptical in Form PART III The Effect of Surface Irregularities on Fatigue Strength PART IV Stress Concentration in Twisted Shafts [R] . H. L. Cox 1953

机译：应力集中理论中的四项研究第一部分复杂应力系统下孔对材料强度的影响第二部分第三部分中除椭圆以外的孔和槽引起的应力集中表面不规则对疲劳强度的影响第四部分应力集中在扭曲的轴

Stress concentration around a nanovoid near the surface of an elastic half-space

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