弹性力学

In this paper, research on domestic and foreign documentation about large-roots ecological protection and mechanical analysis slope, consider the Hubei Sui （Suizhou - Yue Expressway for the landscape design as the practical engineering background, and in view of the current domestic vegetation revetment mechanical effect of the gaps, make a series of discussions and research.

首先，在分析了生态护坡作用机理的基础上，从复合材料学角度将根系和土壤看作按照一定规律组成的复合材料，并用微观力学研究分析根土复合体的弹性常数和基本强度，探求根系和土壤两种材料的特性对复合材料特性的影响。

Mechanical model of waste-filling in roadway was founded and elastic solution of displacement of coal pillar was found out by dint of Ritz method.

建立了巷道矸石充填的力学模型，并应用Ritz法求解了煤柱位移场的弹性解。

This paper uses Ritz theory and presents a method to solve the problem of bend, free vibration and buckling properties of the circular plates subjected to arbitrary forces.

本文应用能量法中的Ritz全面、彻底、细致地研究了任意面内力作用下圆板的力学特性，即弹性圆板在任意面内力作用下的横向静力弯曲、屈曲及自由振动特性。

The finite element analysis models of linear elastic fracture with 20-nodes substance element and cracking singular element were established.

提出采用20节点等参单元、裂缝奇异单元，建立了铺装层线弹性断裂力学有限元模型，通过裂缝尖端应力强度因子的计算，研究了钢桥面沥青铺装层破坏情况对裂缝扩展的影响。

The examples given have proved the advantage of the Boundary Element Method. In the analysis of the fracture mechanics using Boundary Element Method, the calculation model of one-quarter singular element has been established, and has been proved its validity.

把边界元法应用于线弹性结构断裂分析中，建立了裂尖奇异区分析的四分之一奇异元计算模型，算例表明，用四分之一奇异元分析断裂力学问题是一种有效的逼近裂尖场的数值方法。

An elasticity-damage model, which improved the Maxwell model is developed, and it is used to describes the stress-strain curve and the state of damage in the matrix and fibers.

本文提出了一种以Maxwell模型为基础的弹性-损伤模型。这种模型可以描述应力应变行为和损伤行为，以及损伤对其力学性能的影响。

Elastic statics mainly relates to the connection between force and transmogrification, elastic body'sinvalidation, the guide line of design in invalidation.

弹性静力学主要涉及力和变形之间的物性关系，以及弹性体的失效、与失效有关的设计准则。

Viscidity is one of the most important mechanical behaviors in composite material.

粘弹性是复合材料最重要的力学性能之一。

Similarly, if the strong shear, which could suppress all the scattering in the quiescent two phase region, stopped, the follow-up phase separation also displayed characteristics of anisotropism and relaxation, In this dissertation, the transposed"butterfly'and"streakpattern were observed for the first time within the shear-history-influenced phase separation, which is found closely relevant to the anisotropical relaxation behavior of macromolecules. 5. The phase separation kinetics of PS/PVME under oscillatory shear was further studied on the base of that done under simple shear. It is found that, under specific temperature and strain amplitude, the occurrence of phase separation is strongly contingent on oscillatory frequency and only intermediate frequency could effectively induce phase separation; If all considered oscillatory shear could stimulate phase separation, a fixed frequency can maintain specific most probable phase size and higher frequency yields smaller phase, which makes a higher elasticity but weaker stress relaxation; Furthermore, higher frequency can produces stronger compulsory oscillation on the MPPS but won't change the mean of the MPPS. Under given frequency and strain amplitude, the phase separation kinetics dramatically depends on the phase angle of oscillation and the phase separation corresponding to different phase angle follows different dynamical process.

在简单剪切场下相分离动力学研究的基础上进一步对振动剪切场下PS／PVME的相分离动力力学进行了尝试性的研究，发现：在一定温度和振幅条件下，相分离的发生强烈的依赖于振动频率，只有中等频率的振动剪切才能有效地促进相分离的发生；在都能使相分离发生的前提下，一定频率的剪切能够使体系维持一定的最可几相尺寸，较高频率的剪切导致体系形成的相区尺寸较小，因而体系的弹性效应较强而应力松弛效应较弱；同时，更高频率的剪切对最可几相尺寸的强迫振动效应越强，但不会使最可几相尺寸的平均值发生改变；在一定的振幅和频率条件下，相分离的动力学过程会强烈地依赖于相位角，不同相位角对应的相分离遵循不同的动力学过程但机理一样。

The experimental investigation and analysis are presented for exploring the intrinsic link betweencompressive deformational response and crack behavior of the mortar specimens.

1引言 微裂纹的萌生、演化和成核而引起受损固体的非线性力学响应对材料和工程的变形和破坏非常重要，对于以水泥为基材的脆性固体材料，裂纹常常是材料的非弹性变形和破坏的决定性因素，因而它已经成为一项重要的研究课题[1]。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。