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The mode of interfacial fracture of elastic layer in a pull-off test depends on adhesion, the bulk properties of the elastic layer, the degree of confinement, which is defined by the ratio of the contact radius to the thickness of the layer.

在拉拔试验中，弹性层界面破裂模式决定於黏著特性、弹性层的体积性质与束制程度，其中束制程度定义为接触半径与弹性层厚度的比值。

An optimal design of the elastic axis based on ANSYS is presented,to meet the design requirement of the tension sensor of the underwater diamond wire saw,The optimal dimension for the least volume of the elastic axis is obtained in the design.

针对水下金刚石绳锯机串珠绳张力传感器的设计需要，提出了基于ANSYS的张力传感器弹性轴的优化设计，建立了优化设计数学模型，分析了ANSYS的优化设计方法，完成了基于ANSYS的弹性轴优化设计过程，最终得到了满足弹性轴体积最小时的优化设计尺寸。

Two types of coupling vibration problems are considered in thispaper,i.e.those of spherical shells coupling with fluid and ehstic mediumIn particular,for elastic medium,we adopt the basic assumptionsemployed in the Pasternak model of elastic foundation and include theeffect of the foundation's thickness,however,to re-derive the relationshipbetween the pressure and deformation by the principal of minimumpotential energy.

文中考虑了两类耦合振动问题，即球壳与流体和球壳与弹性介质的耦合振动。特别对于弹性介质，采用工程上常用的Pasternak假设但考虑了简化模型中弹性层厚度的影响，利用能量方法重新推导了该模型的压力——变形关系。

Design and make tubular-support and columns-support lucite silo models as well as rubber cushion imitating elastic foundation. Make static and dynamic experiments on elastic and rigid foundations under several kinds of working condition and correct the experiment condition according to FEM calculating result and re-experiment.

自行设计并自制了筒承式和柱承式有机玻璃筒仓模型及弹性地基的模型—海绵橡胶基，进行了在刚性及弹性地基上多种工况的静、动力实验并根据计算结果对实验条件进行修正后再次试验。

A very important result of modified model is that leads to coupling between elastic volumetric stress and elastic deviatoric strain behavior.

论文研究了弹性体积及剪切模量对Gibbs自由能函数的贡献，构造土体的Gibbs自由能函数，对柔度矩阵进行修正。

In this phase transformation range and under its elastic limit of shape memory effect range , the relationship of elastic modulus of SMA with temperature is nonlinear.

实验结果显示，SMA在100%沃斯田体与100%麻田散体相变化范围内，其弹性系会受到自身温的影响，在这个相变化范围内，SMA於形状记忆效应范围内，在其弹性限以下，其弹性系数与温度呈非线性关系，本研究藉由实验数据，建了弹性系与温的关系式。

The main research tasks and results are as follows:(1) Through comparing the stress intensity factor of compact tension specimen calculated by finite element software with the theoretical value, the feasibility of calculating fracture parameters of crack tip in ABAQUS software was verified.(2) The relationship between the elastic modulus of the material and research scale was studied based on deriving the cohesive stress theory and other relevant theories. And the elastic modulus of the material on meso-scale was determined.(3) Global model and sub-model of the finite element were built in th...e macro-scale, and stress-strain field nearby the crack tip was analyzed, and the results show that the detailed stress-strain in the crack tip could be obtained by using the sub-model technique.(4) In meso-scale, the crack growth model was also established by assuming the crack propagating along the grain boundary, and the detailed stress-strain field in the crack tip was obtained.(5) The effect of crack length on Von Mises stress, and maximum principal stress and strain was analyzed in meso-scale when equivalent KI equals 30MPa.m1/2. And the results show that except for crack tip area, the stress-strain distribution in whole specimen is not affected.

主要完成研究内容和取得成果如下：(1)利用有限元软件计算出紧凑拉伸试样的裂纹尖端应力强度因子KI值，其结果与理论值一致，从而验证了利用ABAQUS计算裂纹尖端相关断裂参量的可行性；(2)在研究内聚应力等相关理论的基础上，推导出了研究尺度与材料弹性模量的近似关系，并确定了介观尺度上的弹性模量；(3)在宏观尺度上建立了全局有限元计算模型和子模型，得到了裂纹尖端应力应变场分布，结果表明利用子模型技术获得比较准确的裂纹尖端应力应变场分布是可行的；(4)在介观尺度上利用平均晶粒尺度的方式建立了裂纹沿晶扩展模型，得到了裂纹尖端断裂过程区的微观应力应变场；(5)当应力强度因子为30MPa.m1/2时，分析了介观尺度上在裂纹沿晶扩展过程中裂纹长度对Mises应力、最大主应力和应变的影响，结果表明，裂纹扩展长度对试样整体应力应变分布影响不大，而对裂纹尖端区域有较大影响；(6)介。。。

The drawing and extruding problems are analyzed and calculated by means of the theory and finite element program in this paper. It has been proved that the theory of large strain elastic-plastic finite element and elastic-plastic hydrodynamic lubrication has a wide practice value.

应用本文的理论和有限元程序，分析和计算了拉拔和挤压实例，证实了有限变形弹塑性有限元法和弹塑性流体动力润滑理论在金属塑性成形领域中具有广泛的实用价值。

Secondly, based on the strength analysis of 5618TEU container launching, a model of ship considered as an elastic beam on an elastic foundation and a key hold are built. With the direct reactive force method and spring foundation method, the key hold local strength is analyzed, and two results are gotten.

其次，结合5618TEU集装箱船下水的总体及局部强度分析，建立弹性船体梁，以及关键舱段有限元模型，运用直接加支墩反力和用弹性支墩支撑两种方法，进行关键舱段的局部分析，得出结果。

When the elastic modulus is high, stress and strain are mainly concentrated at edge of the overlap region, while those in weld spot zone are relatively even; when the elastic modulus is low, stresses in the adhesive layer are small while stresses are concentrated to a certain extent at edge of the weld spot.

分析发现，胶粘剂弹性模量对接头中应力应变分布的趋势有明显影响，胶粘剂弹性模量高时，搭接区边缘附近区域应力应变高，焊点区应力应变值相对较小；弹性模量低时，焊点边缘处存在一定的应力集中，胶层中应力较小。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。