The magnitude and direction of lath martensitic shape strain is firstly measured by a new interference method in this research.
利用干涉显微镜首次测得了板条马氏体形状应变的大小及方向。
Strain, or unit deformation, is defined as the unit change in the size or shape of material as a result of force on the material.
应变或者单位变形是材料上的压力造成材料大小和形状的单位改变量。
The results show that the anomalies' shape character of stress and strain has obvious relation with the development and occurring of earthquakes.
表明应力应变异常形态的时间特征与地震的孕育和发生有较明显的关系。
Based on strain mode shape (SMS), the direct index methods of damage location and degree detection are presented and founded.
提出并建立了损伤位置直接指标法、局域应变模态面积损伤程度直接指标法。
Aimed at popular bridge in the engineering, we build a piezoelectric bridge vibration model and analyze the vibration shape and distribution of the dynamic strain.
针对工程实践中常见的桥梁问题,建立了其在自由振动下的模型,分析了其前几阶振动模态下的振形和动态应变分布。
The different transformation model can produce different shear strain, so they show different shape memory effect.
采取不同的相变模式产生不同的切变应变,合金获得不同的形状记忆效应。
The element coupling shape function matrices are derived by means of geometrically nonlinear strain displacement relation under small deformation assumption.
利用几何非线性的应变-位移关系式,在小变形假设条件下确定了单元耦合形函数。
The element coupling shape function meatrices are derived by means of geometrically nonlinear strain displacement relation un-der small deformation assumption.
利用几何非线性的应变-位移关系式,在小变形假设条件下确定单元耦合形函数。
A new method is therefore proposed defining the shape of shear zone in accordance to the results of strain.
根据计算的应变结果,提出了一种定义剪切区形状的方法。
Based on the shape factor and the effective Poisson ratio an effective method to transform from lateral strain of funnel-like specimen to axial strain of standard specimen is developed.
基于形状因子与等效泊松比的原理,建立了——漏斗型小试样径向应变向轴向应变换算的等效方法。
The result shows that the new shape design enhances the output of effective strain value of sensor, and improves sensor precision.
结果可以看出,新的外形设计使传感器有效应变信号增大,提高了传感器的精度。
The failure envelopes of dynamic strength of frozen silt under different strain rates resemble each other in shape, namely, obey the parabola failure criterion.
不同应变速率下的动强度包络线呈现相似形式,服从抛物线破坏准则。
Abgstract Through The analysis of measured low strain wave shape curve for pile foundation. The wave characteristics of shallow defeats in pile is shown.
通过对基桩低应变实测波形曲线的分析,说明桩身浅部存在缺陷的波形特征。
The results show that the particle shape has greater effect on the stress of particle, the strain of matrix and the ductility of composites than that of the particle size and volume fraction.
结果表明,颗粒形状比颗粒尺寸和颗粒体积分数对材料的应力、应变分布及材料韧性的影响大。
The flow function method is used to build the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of wide section Aluminum shape extrusion.
用流函数法确定了宽截面薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
The flow function method is used to define the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of solid aluminum shape with thin wall extrusion.
用流函数法确定了实心薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
It was shown that the particle shape deposited on the copper substrate was very sensitive to the strain extent of substrate.
实验表明沉积在铜表面的铝颗粒形状与局域应力缓释有直接的联系。
An analytical method based on Green's function for calculating strain filed in quantum dot structures of arbitrary shape was presented.
运用解析方法对量子点的结构进行分析,通过对积分核函数进行计算,可以得到各种量子点结构的应力应变分布。
The stamping simulation technology could predict the material flow and the strain distribution, so the initial mark location and shape could be calculated.
利用冲压成形仿真技术预测材料流动和应变分布,先确定成形后商标在零件上的布置,再反推到成形前平板毛坯上的位置。
Because of complexity of geometric shape and loading state for general component, it is difficult to gain theoretical solution to the state of stress-strain for cracking tip.
由于一般构件的几何形状和荷载状态复杂,难于对裂纹尖端的应力应变状态得到理论解。
In this paper, aimed at minimizing the whole strain energy of thin shell structure, the model of shape optimization and the topology optimization were built up.
以薄壳结构整体应变能最小为目标,建立了薄壳屋盖的形状优化与拓扑优化模型,并提出了薄壳屋盖形状优化与拓扑优化的的求解方法。
This aroused his attention, and he removes the grass to observe, feel this strain of grass leaf shape unlike any he had ever seen a plant.
这才引起他的注意,于是他拔下小草,观察之后,觉得这株草的叶子形状不像他见过的任何一种植物。
So such, both shape consistent with boundary element geometrical shape, and simulate crack tip close-by variety law of stress and strain with higher precision, and enhancing calculative efficiency.
如此,既能与边界单元几何形状基本拟合,又能高精度地模拟裂纹尖端附近位移和应力变化规律,并提高计算效率。
The results show as follows: Density and confining pressure are important factors affect mechanical properties for one coarse-grained soil, and they decide the stress-strain curve shape.
成果表明:对于同一种粗粒土,密度和围压是影响力学性质的重要因素,它们共同决定了粗粒土的应力应变曲线形态。
To obtain high accurate shape with singly curved in laser forming, a new design approach was proposed based on plastic strain field.
为了实现单曲率面板材的高精度激光热成形,提出一种基于塑性应变场进行工艺规划的方法。
The paper gives a new concept generalized strain energy density (GSED). It is based on the strain mode frequency and mode shape. It is very effective and its physical meaning is clear.
本文基于应变模态的工作,利用应变模态识别得到的振型和频率结果,提出广义应变比能(GSED)的概念。
Strain 5 was continually mutagenized by ultraviolet radiation, strain 8 was selected on the cellulose-congo red medium on the ground that can shape better transparent ring.
以5号菌株为出发菌株,经过紫外线诱变,用刚果红纤维素平板透明圈选育法得到8号菌株。
Some macroscopic and microscopic factors such as strain ratio, the content of VA and crystallinity, which influence the shape-memory properties, were studied.
通过对形状记忆性能和凝胶含量的测定等重点探讨了拉伸比和乙酸乙烯(VA)含量对其形状记忆性能的影响。
Some macroscopic and microscopic factors such as strain ratio, the content of VA and crystallinity, which influence the shape-memory properties, were studied.
通过对形状记忆性能和凝胶含量的测定等重点探讨了拉伸比和乙酸乙烯(VA)含量对其形状记忆性能的影响。
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