剪应变

In this paper, a general, strain-consistent, third-order displacement field of shells is proposed. On this basis, the nonlinear theory of composite laminated shells including third-order transverse shear deformation and rotary inertia is developed. Hamilton's variational principle is used to derive the nonlinear static and dynamic governing differential equations and the corresponding boundary conditions of composite laminated anisotropic general shells under the orthogonal curvilinear coordinates. And the form of spherical shells is degenerated.

本文提出了一种最普遍的应变协调、三阶壳体位移场，在此基础上建立了考虑三阶横向剪切变形和旋转惯性的复合材料层合壳体非线性理论，用Hamilton变分原理导出了复合材料层合各向异性任意壳体在正交曲线坐标系下的非线性静、动力控制微分方程和相应的边界条件，并将其蜕化为球壳形式。

Rock and soil mechanics ; Drucker-Prager criterion ; shear strength ; intermediate principal stress ; plane strain condition

岩土力学； Drucker-Prager准则；抗剪强度；中主应力；平面应变状态

In the test research of the most radical plane column-beam joint specimens are done, so the feasibility and the problem for this construction method could be discussed.

基于此，本文有针对性的对轴压比、剪压比及梁柱混凝土强度级差进行控制，设计并完成了7个按梁混凝土强度浇筑的钢筋混凝土平面框架节点的低周反复加载试验，通过量测各试件节点区水平箍筋以及贯穿节点的梁、柱纵筋在不同受力阶段的应变等，综合分析了各个试件的延性、耗能性及梁柱纵筋的粘结退化状况，考察了节点核心区采用梁混凝土浇筑后对试件综合抗震性能的影响。

The characteristics of strains on the maximum shear plane were analyzed under tension-torsion multiaxial fatigue loading.

针对拉扭多轴疲劳加载情况，分析最大剪切平面上的应变特性。

In view of the questions in theoretic analysis and numerical simulation with the finite element method,the separation criterion of chips, the surface contact, the setting of friction coefficient,and the thermal stress coupling are researched. A simulation example is presented by applying the finite element analysis software-ANSYS,and the change of stress and strain in metal cutting process, the forming of shear plane and the influence of the temperature field on metal cutting are analyzed. The tool's strength is also analyzed.

基于理论分析和实际有限元数值模拟计算中遇到的问题，研究、讨论了切屑分离标准、表面接触、摩擦系数的设定、切屑与工件之间的连接以及热应力耦合分析等各项技术，并应用大型有限元分析软件ANSYS，具体分析了金属切削过程中应力和应变的变化、剪切面的形成以及温度场对金属切削的影响，并依此对刀具作强度分析，得到若干结论。

According to the results of triaxial compression test, the relationship of cement soil mixed with or without glass fiber concerning stress and strain in different ages and confining pressures was analyzed. Meanwhile, some parameters of cement soil mixed with glass fiber, such as shearing strength parameter, modulus of deformation and relationship between compression strength and deformation modulus were obtained.

根据玻璃纤维-水泥土的三轴压缩试验结果，分析了其在不同围压与龄期下的应力-应变关系，并得到玻璃纤维-水泥土的剪切强度参数、变形模量E50及变形模量与抗压强度qu的关系。

Based on the generalized potential energy variational principle of nonlinear elasticity theory with large deflection,the incomplete generalized potential energy functional is established on the space coupling free vibration of three-span self-anchored suspension bridge by considering the effect of coupling of flexural and axial action,and shearing strain energy of stifening girder.

摘 要：基于大位移非线性弹性理论的广义变分厚理，考虑了加劲梁的压弯耦合和剪切应变能的影响，建立了三跨自锚式悬索桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了自锚式悬索桥的竖向挠曲振动、横向挠曲振动和纵向振动的基础微分方程，忽略非线性项的影响，进而得到线性振动微分方程。

Changes in rheological properties and structure of shark fin s(gel strength,maximum breakage strain,shearing strength and fracture stress) were studied on shark fin s heated for various periods(1h,2h,3h,and 4h)by a texture meter.

研究了鱼翅在不同加热时间(1、2、3、4 h)条件下组织构造及其物性学参数(凝胶强度、最大破断应变、剪切应力、破断强度)变化，并测定了胶原蛋白含量。

Changes in rheological properties and structure of shark fins (gel strength, maximum breakage strain, shearing strength and fracture stress) were studied on shark fins heated for various periods (1h, 2h, 3h, and 4h) by a texture meter.

研究了鱼翅在不同加热时间(1、2、3、4h)条件下组织构造及其物性学参数（凝胶强度、最大破断应变、剪切应力、破断强度）变化，并测定了胶原蛋白含量。

The β type spherulite appeared when the shear rate was 140s-1 and the temperature was 120℃, which caused another peak in the DSC diagram.

但在120℃施加140s-1的剪切应变率时，有β型球晶出现，使得在DSC曲线图上另有一波峰凸起。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。