查询词典 Young modulus

Applying the Whitney-Riley model to the soil-root complex, calculating formulas, which were related to modulus of elasticity E in direction of plant roots growth, modulus of elasticity E to be vertical to direction of plant roots growth and shearing modulus G in plane of plant roots growth, were established.

运用Whitney-Riley模型，推导出土壤—根系复合体根系生长方向的弹性模量E、垂直于根系生长方向的弹性模量E和根系生长平面的剪切模量G等工程常数的理论计算公式，为进一步研究土壤—根系复合体工程特性提供了一种方法，具有一定的参考价值。

Three optimal structures were gotten in this paper by the model of elastic modulus along the grain, elastic modulus in tangential direction, in-plane shearing modulus and laminate rigid:①0/90/0/90/0/90/0/90/0, the outside four veneer is modified, the along grain MOE and MOR are 8377MPa, 60.9MPa respectively; The across grain MOR is 35.1 MPa, and TS is 17.2%.

4通过应用杨木单板顺纹弹性模量、横纹弹性模量、面内剪切模量及层合板刚度模型进行杉木胶合板结构设计，经多次修正，得出较好结构有以下几组：①0/90/0/90/0/90/0/90/0，最外四层为杉木改性单板，顺纹弹性模量和静曲强度分别达到了8377MPa，60.9MPa；横纹静曲强度为35.1 MPa，吸水厚度膨胀率为17.2%。

In the second chapter, we introduce the definition of pointwise convex modulus. The relation between numbers of pointwise convex modulus and relevant geometric properties will be discussed. we research the characteristics of numbers of pointwise convex modulus .

在本文第二部分引入了点态凸性模的定义，并讨论了点态凸性模的取值与相关几何性质之间的关系，研究了点态凸性模取值特点。

In this paper, material properties of the segment of the porous metal-bonded diamond grinding wheel were researched by finite element simulation. Segments were manufactured according to the design result and their elastic modulus was measured. The key points are as follows: The influence of the porosity on the elastic modulus was analyzed through a finite element method. In the FEM model, the design variable only includes the porosity, and the tetrakaidecahedron model is applied as the microstructure model of porous metal matrix. The corresponding porosity was decided in order to meet the requirement of the elastic modulus.

本文利用有限元软件对多孔金属结合剂金刚石砂轮节块的材料性能进行了数值模拟计算，依设计结果制备了节块试样，并测试了节块的弹性模量，主要内容有： 1、充分借鉴多孔材料结构设计和分析的方法，以十四面体模型为多孔金属胎体的微观结构模型，以孔隙率为设计变量，通过有限元分析，计算出满足一定弹性模量要求的多孔金属胎体的孔隙率范围。

The results show that the casing external collapse load could be lowered to some extent by increasing the cement sheath elastic modulus. But the effect of increasing elastic modulus is much less than that of decreasing the elastic modulus of cement sheath.

研究结果表明，增加水泥环弹性模量对套管外挤载荷有一定的减缓作用，但效果远没有降低水泥环弹性模量明显。

On the basis of numeric results, the laws of how the mechanics of fiber and matrix, the volume fraction, aspect ratio and the orientation state of fiber react to the Yangs modulus, shear modulus, poisson modulus of short fiber reinforced composites are been investigated.

从数值上研究了纤维和基体的力学性能、纤维在复合材料中的体积百分数及其长径比、纤维取向状态对短纤维增强复合材料的杨氏模量、剪切模量、泊松比等力学性能的影响规律。

The method of defining pedestal pile foundation deformation modulus is especially discussed in this article, and it takes the Mindlin solution as the starting point using mathematics method to get the Poissons ratio which is the factor influencing foundation soil deformation modulus , and a deformation modulus calculating equation is finally determined.

其中特别论述了扩底桩地基变形模量的确定方法，并从Mindlin解出发利用数学方法得出了影响地基土变形模量大小的因素—泊松比μ，初步确定了比较完善的变形模量计算公式。

The time and temperature dependence of dynamic modulus and phase angle of hot mix asphalt is analyzed,the master curve of dynamic modulus and phase angle is built using time-temperature superposition principle,the Witczak predictive equation is verified using the test results,which is helpful to provide good reference for China to use dynamic modulus as pavement design parameters.

分析了沥青混合料动态模量和相位角对温度和加载频率的依赖性，利用时间-温度置换原理建立了动态模量的通用曲线，并用动态模量实测结果对Witczak预估模型进行了验证和分析，为将动态模量作为沥青路面设计参数和混合料性能评价指标提供了有益参考。

We obtained the nasal deformation with three-dimensional reconstruction images and adjusted to separate the images of nasal cartilage, defined the form and structure of nasal deformation. Then we measured 10 cases of adult cadavers nasal alar, lateral and septal cartilage through modern mechanical measuring instruments, to obtain the elastic modulus of above three part structure of nasal cartilage, then to obtain more accurate nasal cartilage elastic modulus data through statistical analysis. At the same time, according to the relevant literature, we obtained nasal soft tissue biomechanical properties, mainly were elastic modulus and Poisson\'s ratio. Finally we established three-dimensional finite element analysis model of unilateral cleft lip nasal deformation, defined the model\'s constraint conditions and carried out biomechanical measurement and analysis of unilateral cleft lip nasal deformation.

将唇裂鼻畸形患者鼻部进行三维重建并调校，分离出外鼻软骨的影像，并对鼻部组织进行分层和重建，确定畸形鼻的形态和组织结构；通过现代力学测量仪器，对10例成人尸体鼻部的大翼、侧鼻和中隔软骨进行弹性模量的测量，获得上述三部分鼻部软骨结构的弹性模量数据，并通过统计学分析来获得较为准确的鼻部软骨结构的弹性模量数据，同时查阅相关文献，得到鼻部软组织的相关生物力学性质，主要为弹性模量和泊松比；建立单侧唇裂鼻畸形的畸形鼻部三维有限元分析模型，确定有限元分析的边界条件等，进行单侧唇裂鼻畸形的鼻部生物力学的测量和分析。

In order to help for evaluating properties of soil in interaction more precisely, the paper applies elastic theory solution on different modulus in tension and compression for vertical load into semi-infinite elastic body. Through quoting Heaviside function, the solution of elasticity theory with different modulus in tension and compression is established founded on the solution of elasticity theory for the material incapable in tension and Mindlinsolution for equal modulus.

为使地基土在共同作用中的行为特征评价更为合理，本文应用了半空间问题竖向荷载下地基土的拉压模量不同弹性理论解，该理论解是通过引入Heaviside函数，利用不能承受拉应力材料的弹性理论解并结合拉压模量相等的经典Mindlin解而获得。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。