In situ imaging nanoindentation was used to characterize the differences in longitudinal Modulus of Elasticity (MOE) and hardness of different cell wall layers of softwood tracheids.
该文利用原位成像纳米压痕技术研究了针叶材管胞细胞壁不同壁层之间在纵向弹性模量(MOE)和硬度方面的差异。
The coupling between bridge and track adopts by beam unit, modulus of electricity of and yielding stress according to the broken line of the non-liner rail longitudinal resistance of displacement.
桥梁和轨道的联结采用非线性梁单元模拟,其材料弹性模量和屈服应力通过轨道纵向位移阻力与梁轨相对位移关系的双折线化确定;
Longitudinal vibration of pile with variable impedance (variable sections or modulus) in layered soil undergoing arbitrary load is theoretically investigated.
对成层土中变阻抗(变模量或变截面)桩在任意激振力作用下的纵向振动特性进行了研究。
The self-consistent finite element method is used to evaluate longitudinal effective Young's modulus and shear modulus for unidirectional fiber composite containing the fiber-end crack.
计算了含有纤维端头裂纹的单向短纤维复合材料的有效纵向拉伸模量和纵向剪切模量,并分析了体分比、刚度比、长径比等物理、几何因素的影响。
It is indicated that the longitudinal wave speed, shear wave speed, as well as the dynamic Young's modulus of the Mogao grottoes increase with the increasing depth of grottoes.
结果表明,洞窟岩壁的纵波波速、横波波速、动弹模随着洞深的增加而增加;
The rupture in the middle of bulk cargo is due to the corrosion and fatigue of components in long term usage, which leads the section modulus to reduce and the general longitudinal strength to weaken.
船舯断裂的主要原因之一是船体构件因长期受到腐蚀、疲劳等作用而造成船舯剖面模数降低,进而削弱了总纵强度。
A model is proposed for predicting the effective longitudinal shear modulus of fiber reinforced composite materials.
本文给出一个计算单向纤维增强复合材料纵向剪切模量的模型。
The longitudinal yield strength and the Young′s modulus increase with the draw ratio.
纵向屈服强度和模量随拉伸比增加而提高。
Solid Youngs modulus is determined by measuring the propagation speed of longitudinal wave induced by ultrasonic wave in solid media.
通过测量超声波在固体介质中传播的纵波传播速度,进一步测量该固体的杨氏模量,得到了测量固体杨氏模量的一种新方法。
Further a group of algebraic equations to predict effective longitudinal shear modulus of multiphase fiber composites were obtained by virtue of the averaged stress strain theorem.
根据复合材料平均应力与应变关系,获得了预测有效轴向模量的形式简单的代数方程。
All studies show that weak plane inclination, thickness and whether be run through or not have a significant impact on longitudinal wave velocity, average modulus and strength of specimens.
研究结果表明:弱面的倾角、厚度及是否贯通等对试样的纵波速度、平均模量和强度具有显著的影响。
Solid Young's modulus is determined by measuring the propagation speed of longitudinal wave induced by ultrasonic wave in solid media.
通过测量超声波在固体介质中传播的纵波传播速度,进一步测量该固体的杨氏模量,得到了测量固体杨氏模量的一种新方法。
Solid Young's modulus is determined by measuring the propagation speed of longitudinal wave induced by ultrasonic wave in solid media.
通过测量超声波在固体介质中传播的纵波传播速度,进一步测量该固体的杨氏模量,得到了测量固体杨氏模量的一种新方法。
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