1) degradation of dynamic elastic modulus
弹性模量衰减
2) degradation coefficient of secant elastic modulus
割线弹性模量衰减系数
1.
Sthis defined as the largest value of cyclic stress ratios corresponding to the flat δ～N curve δ is degradation coefficient of secant elastic modulus and N is cyclic number).
循环荷载下,砂土与EPS颗粒混合的轻质土(LSES)存在临界循环应力比Sth,将割线弹性模量衰减系数δ与循环次数的关系曲线能保持平缓的最大循环应力比定义为Sth,它是结构稳定与破坏两种状态的界限指标,根据动三轴试验结果,认为影响Sth的主要因素有围压、水泥掺量和EPS颗粒含量。
4) modulus reduction
模量衰减
5) anelastic attenuation
非弹性衰减
1.
The combined effects of soft rock sites and anelastic attenuation factor have been separated and determined respectively by(using) this method.
采用该方法,分离软基岩场地联合效应和非弹性衰减的影响,并把二者分别确定出来。
6) inelastic attenuation
非弹性衰减
1.
The inelastic attenuation model of media in the Sichuan Basin region has been studied by using the joint conversion of genetic algorithm based on the waveform data recorded by Sichuan Digital Seismic Network.
利用四川数字地震台网记录的地震波形资料,采用遗传算法联合反演方法研究了四川盆地地区的介质非弹性衰减模型。
2.
In this paper, according to the relationship of observation spectrum with source spectrum, travel-path attenuation factor and site effect, we use the digital seismic data of moderate-small earthquakes to invert the soft rock site effect and S wave inelastic attenuation under the constraint of site effect, and determine the parameters of path and site.
采用中小地震的数字观测资料,依据地震观测谱和震源谱、传播路径衰减因子及场地效应的关系式,在对场地效应约束的条件下,反演S波非弹性衰减和软基岩场地效应,确定研究区路径、场地参数。
3.
Using 487 pieces of digital oscillograms of 19 seismic events recorded at 32 seismologic stations located on Ordos massif and its surroundings, we calculate the parameters of three segments attenuation and the relation of inelastic attenuation Q value with frequency in the crust of Ordos Massif, the site responses of 32 stations and the source parameters of 19 events by the genetic algorithm.
采用分布于鄂尔多斯地块及其周缘的32个地震台站记录到的19次地震事件共487条数字化波形记录,利用遗传算法反演得到了整个鄂尔多斯地块地壳内S波的三段几何扩散参数、S波非弹性衰减Q值随频率变化的关系式、32个台站的场地响应以及19次地震的震源参数。
补充资料：表观弹性模量
分子式：
CAS号：
性质： 在减震橡胶制品中，由于橡胶与金属黏着界面的形状效应，不能仅由形状尺寸和橡胶的弹性模量来决定不同方向的弹簧常数，为此将表观弹性模量Eap定义为：圆柱形：Eap=(3+4.9355S2)G正方形：Eap=(3+6.580S2)G无限长柱：Eap=(4+3.290S2)G式中G为剪切弹性模量，S为形状因子。
CAS号：
性质： 在减震橡胶制品中，由于橡胶与金属黏着界面的形状效应，不能仅由形状尺寸和橡胶的弹性模量来决定不同方向的弹簧常数，为此将表观弹性模量Eap定义为：圆柱形：Eap=(3+4.9355S2)G正方形：Eap=(3+6.580S2)G无限长柱：Eap=(4+3.290S2)G式中G为剪切弹性模量，S为形状因子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条