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扩散应力     
相关语句
  diffusion-induced stresses
     DIFFUSION-INDUCED STRESSES IN SOLIDS
     固体中的扩散应力研究
短句来源
     Also, the interesting periodic layer formation during solid state reactions is discussed as the result of diffusion-induced stresses.
     在此基础上,详细讨论了分别与两种不同生长方式相联系的扩散应力和扩散应变问题,并以此分析具有代表性的固态反应周期层片型结构的形成机理。
短句来源
  diffusion stress
     MEASUREMENT AND ELIMINATION OF DIFFUSION STRESS
     扩散应力的测量及消除
短句来源
     Furthermore,the diffusion stress increases with increasing the gap,and a linear relationship exists between the gap x and the diffusion stress p,which can be expressed by the function of p=118-1.46x.
     间隙越大,产生的扩散应力越大,并且扩散连接应力p与间隙x间存在方程为p=118-1.46x的线性关系。
短句来源
     THEORETICAL ANALYSIS OF DIFFUSION STRESS IN SILICON WAFER
     硅扩散应力的理论分析
短句来源
  diffuse stress
     The result shows that geocell can restrict the lateral replacement and diffuse stress of railway subgrade effectively, its maximum lateral replacement is decreased by 17% , its maximum vertical stress is decreased by 9.3%, its stress is well-distributed by using geocell, its bearing capacity can reach more than 180 kPa, the cost of reinforced subgrade by using geocell is decreased by 9.3%.
     结果表明土工格室可有效约束软弱基床的侧向位移和扩散应力,最大侧向位移可减少17%,最大竖向应力减少9.3%,且使应力分布更加均匀;
短句来源
  “扩散应力”译为未确定词的双语例句
     The accurate solution of rectangular plate with four free edges on the elastic foundation was only presented about simple models, such models as wrinkle foundation and double-parameter foundation, for complex controlled equations. However, wrinkle foundation model has conspicuous fault in depict of the access of actual soil, which the wrinkle foundation's displacement occurred in areas that was subjected to loading.
     弹性地基上四边自由矩形厚板的分析,由于其控制方程比较复杂,只是对简单地基模型如文克尔(E.Winkler)地基、双参数地基上的厚板有了精确解,但文克尔地基模型在描述实际土体的过程中存在着明显的缺陷,即文克尔地基发生表面位移只限于受荷区域,不能扩散应力和变形;
短句来源
     Referred to the theory of elastic thin plates in thermoelasticity, the expression for stress in diffused silicon is derived.
     参考热弹性力学中的薄板热应力理论,推导出了硅薄片中扩散应力的表达式;
短句来源
     After anchoring shaft,the stress concentration is extended to the deth of the wall rock,the value is decreased,and the plastic area is almost disappeared. After the vault is excavated,the displacement of the top becomes stable.
     加锚杆支护后,应力集中向围岩深处扩散,应力值大小降低,塑性区几乎消失,拱顶开挖完成后,顶部下沉位移逐渐趋于稳定。
短句来源
     By analyzing the data of the experiment, it shows that hard shell course can disperse stress and reduce settlement of the soft ground, adjust asymmetric settlement, debase the rate of differential settlement, also limit the de- velopment of lateral deformation of the soft ground, so hard shell course plays an active role in the deformation and stability of the soft ground.
     通过对实测数据分析表明:硬壳层能扩散应力,减小软基的沉降量,调整不均匀沉降,降低差异沉降率,限制软基侧向变形的发展. 因此,硬壳层对软基的变形与稳定能起到一定的积极作用.
短句来源
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  diffusion-induced stress
This bending is caused primarily by diffusion-induced stress and can be prevented by either mechanical constraint during diffusion or mass constraint of the couple (thicker in the diffusion direction).
      
The effective diffusivity of an isotropic solute due to diffusion-induced stress gradients is given.
      
  diffusion-induced stresses
Diffusion-induced stresses and plastic deformation
      
Diffusion-induced stresses or the chemical stress effect is treated for some simple shapes such as thin slabs, cylinders, and spheres.
      
  diffusion stress
diffusion stress) may not be as influential (if at all) compared to stressors typical of exposed environments (i.e.
      
  diffuse stress
The three westernmost events probably accommodate diffuse stress within the ICH.
      


Referred to the theory of elastic thin plates in thermoelasticity, the expression for stress in diffused silicon is derived. According to this expression, the law of stress distribution in one side and two sides diffused silicon wafers is discussed. The results show qualitative agreement with the photoelastic experiment results.

参考热弹性力学中的薄板热应力理论,推导出了硅薄片中扩散应力的表达式;讨论了单面扩散和双面扩散硅片中的应力分布规律,并将理论结果踉光弹实验结果作了比较,发现它们之间有比较好的一致性。

As one of the most interesting diffusion phenomena discovered by Osinski et al. in 1982, the periodic layer formation during solid state reactions is still far from a satisfactory description. Since the successive layers have facing surfaces with mated topography, it is considered that the seperating of the layer from the reaction front should relate to the diffusion-induced stresses developing within the separating of the layer during solid state reactions. We discovered that the layer is fractal with clusters...

As one of the most interesting diffusion phenomena discovered by Osinski et al. in 1982, the periodic layer formation during solid state reactions is still far from a satisfactory description. Since the successive layers have facing surfaces with mated topography, it is considered that the seperating of the layer from the reaction front should relate to the diffusion-induced stresses developing within the separating of the layer during solid state reactions. We discovered that the layer is fractal with clusters of phase β (FeSi in diffusion couple Zn/FeaSi or CoSi in diffusion couple Zn/Co2Si, e.g.) distributing continuously in phase α (FeZn13 or CoZn13, respectively). This empirical fact supports the mechanical-instability model for the pattern formation of periodic-layered structures.

Osinski等人在1982年发现的固态反应周期层片型结构至今仍然缺乏令人满意的理论描述.由于层片间存在相互吻 合的形貌特征,因此该结构的形成被认为与固态反应过程中产生的扩散应力有关.高倍扫描背反射电子像显示,周期出现的层片不 是单相的,而是由双相构成,层片中簇状的、而非颗粒状的非扩散相连续分布在互扩散相内.实验证实了本文作者关于周期片层结 构形成机理的界面力学失稳模型.

In order to reinforce the soft subgrade of railway effectually, guarantee train safety, the engineering mechanism of railway subgrade reinforced by geocell was analyzed by using Marc program, a full-scale load-bearing test of soft subgrade reinforced by 4 types of geocells was carried out, by using flat load-test method. The different types of geocells are 34 cm×10 cm, (40 cm)×10 cm, 34 cm×15 cm and 40 cm×15 cm. The subgrade disease in the site of K241+(450~)550 of Yang'an railway was treated by using geocell...

In order to reinforce the soft subgrade of railway effectually, guarantee train safety, the engineering mechanism of railway subgrade reinforced by geocell was analyzed by using Marc program, a full-scale load-bearing test of soft subgrade reinforced by 4 types of geocells was carried out, by using flat load-test method. The different types of geocells are 34 cm×10 cm, (40 cm)×10 cm, 34 cm×15 cm and 40 cm×15 cm. The subgrade disease in the site of K241+(450~)550 of Yang'an railway was treated by using geocell .The result shows that geocell can restrict the lateral replacement and diffuse stress of railway subgrade effectively, its maximum lateral replacement is decreased by 17% , its maximum vertical stress is decreased by 9.3%, its stress is well-distributed by using geocell, its bearing capacity can reach more than 180 kPa, the cost of reinforced subgrade by using geocell is decreased by 9.3%. On-the-spot observation in 6 a shows that its maximum settlement is 28 mm, its minimum settlement is 13 mm. This engineering practice proved that the method of using geocell to reinforcing railway subgrade is effective. 5 tabs, 11 figs, 8 refs.

为有效加固铁路软弱基床,保证列车安全运营,运用Marc软件对土工格室加固基床的工程性状开展了有限元分析,分别选择34cm×10cm、40cm×10cm、34cm×15cm和40cm×15cm(焊距×高度)4种规格的土工格室,应用平板载荷试验方法进行了土工格室加固的软弱基床承载力足尺模型试验,同时采用土工格室加固方法,对阳安铁路K241+450~550段的软弱基床进行了处治。结果表明土工格室可有效约束软弱基床的侧向位移和扩散应力,最大侧向位移可减少17%,最大竖向应力减少9.3%,且使应力分布更加均匀;加固后的基床承载力达180kPa以上,降低加固费用6%~12%;加固地段6a累计最大沉降为28mm,最小沉降为13mm,达到了加固铁路软弱基床的目的。

 
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