查询词典 shear strain

In order to investigate how randomness of concrete had effects on structural responses by means of experiments, authors carried out a pseudo static experiment on the same four-story 1:3 scaled model of short-leg shear wall structure. Load and displacement curves, strain curves of reinforced concrete and partial relative displacement curves were obtained.

为了从试验角度研究混凝土随机性对结构反应的影响，以4片相同的4层1：3比例缩尺模型的短肢剪力墙结构为研究对象，进行了拟静力试验研究，得到了荷载－位移曲线、混凝土和钢筋的应变曲线及墙体局部相对位移曲线。

The paper examines the load and strain data from a series of single shear pull-off tests,in which CFRP sheet is used to strengthen the concrete with different bond surface treatments.

着重根据粘结－滑移关系曲线分析在不同应力作用下碳纤维布复合材料的应变和应力分布，以及剪应力在界面的传力机理。

The presented model can take into account the effects of stress path pressure level, inherent anisotropy, void ratio, work softening associated with strain localization into a shear band and loading rate effect on the stress-stain behavior.

该模型可以考虑应力路径、压力水平、固有各向异性、孔隙比等因素对砂土变形和强度特征的影响，以及应变局部化和加载速率变化所产生的黏性特性。

With analysing the the fatigue mechanism, the general mode of interply fatigue damage propagation is denoted by delamination length and crack density. Based on the power-law, the relationship between number of cycles and delamination length and crack density are established. The specimen is modeled as an equivalent six-ply material system. Starting with the analysis of interply stress, the interply shear stress under cyclic loading is calculated by using nonlinear three-demension FEA. According to the stage regularity of fatigue damage propagation, such models as average strain, effective modulus, ratio of delamination length and crack density, experimental relationship between crack density and effective modulus, are proposed by introducing subsection coefficient.

通过对疲劳机理的分析，确定了以脱层长度和裂纹密度表示的层间疲劳损伤演化的一般模式，利用指数法则建立了脱层长度和裂纹密度随疲劳循环周次变化的关系；从层间应力分析入手，以等效六层的材料模型对循环载荷下的层间剪切应力进行了三维非线性有限元分析；根据疲劳损伤扩展的阶段性，引入分段系数，分别建立了平均应变与载荷循环周次的分段线性模拟模型、有效刚度随载荷循环周次的变化关系模型、裂纹密度变化和脱层长度变化关系随载荷循环周次变化的分段线性模型以及疲劳裂纹密度和有效刚度关系的经验模型。

Keywords: blast load;reinforced concrete structure;shear failure;strain rate effect;finte element analysis

中文关键词：爆炸荷载；钢筋混凝土结构；剪切破坏；应变速率效应；有限元分析

The results indicate that 30CrMnSiNi2A steel is sensible of strain rate, and dynamic compression leads to shear failure with the angle 45°.

运用SHPB实验研究超高强度钢30CrMnSiNi2A在应变率500~5000s^(-1)时的应力应变关系，并对典型试样进行了金相观察。

As an example of application, the study on small scale shear failure of Al-Zn-Mg-Cu plate under complicated strain and stress states, especially within the plastic zone ahead of a pre-crack, would promote our understanding of the fracture mechanism, of the shielding effect caused by cracking path deflection, and of the mechanism of fracture toughness anisotropy of textured high strength aluminium alloys.

作为一个应用实例，本文关于Al-Zn-Mg-Cu厚板在复杂应力应变状态下的小尺度剪切失效机制的研究，对于了解工业高强变形铝合金的断裂过程、了解裂纹扩展途径偏斜所引起的shielding效应、了解断裂特征和断裂韧度的各向异性等实际问题也是很有启发的。并已被Materi-als Science and Technology认为是&an interesting piece of work containingsome original idea s&。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。