查询词典 elastic

In this paper,elastic and inelastic response spectra are obtained based on the analysis of 110 near-field ground motion records.

前言在近年来的几次大地震中，近场地震动对结构都产生了不同于以往的显著影响。

Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand.

用作药物的毒品需求缺乏弹性，而电脑需求有弹性。

Therefore, the stress and strain of a half infinite plane indented by a sliding spheric tip were calculated based on an elastic-linear strengthened plastic deformation model, making use of a commercial software.

选用20#钢、45#钢、T8钢3种材料作为研究对象，利用三维有限元法动态模拟刚性球形磨粒在弹-线塑性平板上的压入-划动过程，所用磨粒半径为0.15mm，试样尺寸为1.2mm×1.2mm×3.0mm，划动距离1.2mm；采用ANSYS/LS-DYNA软件对每种材料在压入深度0.01～0.10mm范围内进行10次动态模拟。

The local stress and average stress in different phases for a particle or a fiber with a graded interphase embedded in an infinite matrix under a general macroscopic loading are derived, then Mori-Tanaka and the generalized self-consistent methods have been used to evaluate the effective elastic and viscoelastic properties of the composites.

首先给出了具有沿径向连续变化界面层的颗粒或纤维放在无限大的基体中在静水压力和纯剪切载荷作用下的局部关系，然后利用Mori-Tanaka方法和广义自洽方法分别得到相应的复合材料的有效弹性模量和粘弹性中的储存和耗散模量。

The results show that the ratio of the released elastic energy to the damage dissipative energy can be served as a sensitive precursor of catastrophe. Furthermore the value of the non-dimensional ratio has a similar tendency to be 1 with different responses in the two failure modes, that is, the response function R always decreases in the gradual mode, while increases and tends to be infinite at the catastrophic point of the failure.

研究发现在灾变性破坏和非灾变性的渐进式破坏两种失效模式中，虽然系统中卸载所贡献的弹性能增量与损伤消耗和释放的能量增量的比值都有趋向于1的趋势，但是两者的趋近方式不同：灾变性破坏时表征能量比随控制变量变化特征的响应函数R有一个上升段，在灾变破坏点$R$趋向于无穷大，而非灾变性破坏中$R$始终是减小的。

It can be concluded that the slipping of phase interfaces or the viscous sliding of grain boundary, dislocation's oscillation, the infinitesimal plastic deformation that was caused by the difference of elastic module and heat expansion coefficient between phases of the alloy yielded the damping of the alloys.

研究表明合金的阻尼是由合金晶界和相界面滑动、位错振荡以及各相的热膨胀系数和弹性模量间差造成的微塑性变形共同造成的。

On the basis of Chen's equation of finite deformation mechanics with a dragging coordinator system,the paper studied the meaning of elastic parameters and constitutive equation in the medium equivalent to classic infinitesimal deformation mechanics that cracked,large deformation formation corresponds to and relevant features of seismic velocity.

基于陈至达的拖带坐标系的变形力学方程，研究了大变形破裂地层对应的经典无限小变形力学的等效介质弹性参数的含义、物性方程和相应的地震反射波的速度特性。

It is indicated that the damping of the alloy is induced by phase interface slipping or grain boundary viscous sliding, the infinitesimal plastic deformation which is caused by the difference of elastic modules and heat expansion coefficients between phases of the alloy.

结果表明： ZA27-4%Si合金阻尼随频率增大而减小，随温度升高而增大，阻尼不随应变振幅的变化而变化； ZA27-4%Si合金室温阻尼为5.83×10-3，与ZA27合金阻尼相当； ZA27-4%Si合金的阻尼是由合金内部的晶界和相界面滑动、位错振动以及各相的热膨胀系数和弹性模量间差造成的微塑性变形共同造成的。

Results show:(1) coupling of elastic deflections with rigid motions is distinctive;(2) computations of two methods are in good agreement with test data, when rotation angle is small;(3) when rotation angle is large, couplings increase distinctly and the differences between the results of the two computational methods increase;(4) the bending stiffness has evident effect on the coupling, and the coupling will increase with the decrease of bending stiffness;(5) in case of the blade is relatively soft, the calculated values of phase lag and amplitude augment based on infinitesimal rotation will exist.

计算分析表明：(1)弹性桨叶存在较明显的刚性运动和弹性变形耦合；2）挥舞角较小时，两种处理方法计算结果一致，均与试验数据吻合较好；(3挥舞角较大时，刚柔耦合增强，两种处理方法的计算值差别较为明显；(4)桨叶弯曲刚度对桨叶刚柔耦合特性有较明显影响，刚度越小，耦合越强；(5)桨叶如果比较柔软，小转角处理方法计算值相对有限转角处理方法，相位滞后、幅值增加均较为明显，计算桨叶动响应时需引起注意。

The basic properties of elastic wave propagation in quadratic inhomogeneous damage materials are discussed by examples.

介质中的波的传播理论在国内外已得到广泛的研究[4-6]，但以往的文献大多研究的是均匀介质或分层均匀介质中的波的传播问题[7]。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。