Thereafter, research is done on MR fluids sheared by a small angle based on BCT model and the formula of the shear stress is obtained. 在这个基础上,本文对磁流变液受小角度剪切变形的情况进行了研究,得到了这种情况下其剪切应力的理论计算公式。
Based on the limit equilibrium theory and the hypothesis of planar sliding surface, a formula for calculating the angle of shear failure was deduced considering cohesion and cut slope angle. 基于极限平衡理论及平面滑裂面假定,在考虑土黏聚力及放坡角度的基础上,推导了平面滑裂面剪切破坏角的数学表达式。
The increase of the inclination angle of shear band and its width has an opposite influence on stress-strain curve of specimen after localization occurs. 剪切带倾角和宽度的增加对岩样的塑性性质影响正相反。
According to test results of two different angle specimens of local transfer RC joint from inclined column to Beeline-shaped short shear wall under vertical static loads and results of corresponding finite element analysis ( ANSYS), fundamental behaviors of the joint are achieved for the change of the angle. 通过2个不同角度的斜柱局部转换节点在竖向荷载作用下的静力试验以及有限元分析,获得了斜柱角度变化对该节点受力性能影响的基本规律。
Larger loading rate leads to larger inclination angle of shear band in the middle of specimen. 随着加载速率的增加,岩石中部剪切带的倾角有增大的趋势。
And the formula for angle of shear plane is modified by chip shortening coefficient. 并通过切屑变形系数来修正模型中的剪切角计算公式。
The relation between the stability of rock bedded slope and the dip angle of strata or the shear strength of joint is also explained. 同时也阐明了岩层倾角以及结构面抗剪强度对顺层岩质边坡稳定性的影响。
Results show that degree of compaction, compaction water content and saturation state of compacted soil have influence on cohesion and angle of friction of clay, thereby on the shear strength of clay. 试验表明,压实度、压实含水量及土体饱和状态对粘聚力和内摩擦角有影响,从而使抗剪强度也受到三因素的影响。
The shear direction angle was used to describe the 3-D shear contact characteristics, the peak shear strength, the wear equations for the peak friction angle, and the dilation angle are defined mainly in terms of the shear plastic work. 考虑峰值剪切现象,以切向塑性功为主要参数,建立峰值摩擦角和剪胀角的磨损方程。
Roughness increases inner friction angle and cohesive force, and transfers characteristics of shear deformation curve and mechanics and form of shear failure. 粗糙度的存在,提高了胶结面的内摩擦角及凝聚力,改变了胶结面剪切变形曲线特征及剪切破坏机理和形式。
In this paper, generation and development of impacting wave in π/ 2 angle wedge in case of shear pulse with constant velocity have been investigated by means of the methods of self-similarity and complex function in elastodynamics. 本文利用弹性动力学中的自相似方法和复变函数论方法,研究了在脉冲匀速运动剪切载荷作用下π/2角楔形弹性体中冲击波的形成和发展。
In this paper, the investigation of the variations of the peak power and phase angle of a laser beam passing through a turbulent shear layer is discussed. 本文论述一个由流体力学和光学联系起来的新课题&激光通过湍流剪切层后的相位变化及峰值功率变化。
The conditions that the most story drift angle of interruptable shear wall height are established. 设定了最大层间位移角θmax为可中断剪力墙的条件。
The angle values of the planes that experience peak values of maximum shear strains are averaged by employing the weight function, which is assumed to take into account the main factors of influencing the fatigue behavior, e.g. fatigue damage. 该方法中,以材料损伤为权值函数,平均最大切应变峰值点对应的平面方向。
Statistics Analysis on Friction Angle of Shear Strength for Clay 粘土抗剪强度内摩擦角统计分析
Bigger inclination angle of shear band leads to bigger dissipated energy of lateral plastic deformation and smaller dissipated energy of lateral plastic deformation. 增加剪切带倾角,侧向塑性变形消耗的能量占剪切带消耗的能量的比例增加。
Dissipated energy due to axial plastic deformation is proportional to that of lateral plastic deformation and the proportional coefficient is dependent on inclination angle of shear band. 轴向塑性变形消耗的能量与侧向塑性变形消耗的能量成正比,其比例系数与剪切带倾角有关;
The axial and lateral plastic strains are concerned with the compressive stress level, the inclination angle and the thickness of shear band, the softening modulus, and the geometrical size of rock specimen. 试样的轴向塑性应变及侧向塑性轴向应变由梯度塑性理论确定,它们与应力水平、剪切带倾角及宽度、软化模量及试样的尺寸有关。
Whether shear instability occurs or not, some parameters, such the length of specimen, shear elastic modulus, shear softening modulus, internal length parameter ( or the width of shear band) and the inclination angle of shear band, play important roles. 岩样系统是否将发生剪切失稳破坏,关键取决于:岩样高度、剪切弹性模量、剪切降模量、岩石材料内部长度参数及剪切带倾角。
Based upon the gradient-dependent plasticity, a model of size effect of the inclination angle of the shear band was put forward. The theoretical result compares well with experimental results. 建立了准脆性材料试件剪切带倾角尺度效应模型,得到了剪切带倾角尺度效应的解析解,且与实验结果比较相符。
An analysis of size effect of the inclination angle of shear band and the onset, skip and stability of shear strain localization 剪切带倾角尺度律与局部化启动跳跃稳定研究
Through parameters analysis, it is shown that the angle of prestressed cable is most important factor for shear lag effect of box girder, however, the placement of prestressed cable is insensitive. 通过预应力对箱梁剪力滞效应的影响因素分析,结果表明预应力钢束的弯起角是对剪力滞系数影响的主要因素,预应力钢束的锚固位置对剪力滞系数影响不敏感;
Larger inclination angle of shear band is caused by larger rigidity of platen. 压头刚性越大,剪切带倾角增加,试件脆性增强。
It has been confirmed that sufficient structural strength is one of the conditions for the formation of shear band for structured clay. Inclination angle of the shear band is not in accordance with Roscoe ′ s theory. 结果表明:土体具有足够的结构强度是剪切带形成的条件之一,剪切带的倾角与Roscoe理论不相符;
By changing the angle of seismic waves in the single-dimensional Time-History analysis, the most disadvantaged angle and the most negative value of bending moment, shear are founded in the analysis. The single dimensional Time-History analysis results are compared with the single dimensional response spectrum results. 通过改变地震输入角度对结构进行单维时程分析,找出了各墩底单维地震输入下弯矩、剪力最不利输入角度和最不利值,对比了单向反应谱与单维地震输入结果。
The products possessed the general characteristics of long chain-branched polymer and the rheological behavior has been obviously improved, such as higher value of stored module at low frequency, distinct decrease of loss angle, significant increase of complex viscosities and shear thinning less sensitive. 产物具备长支链聚合物的一般特征,流变行为得到了大大改善,如低频剪切储存模量增加、损耗角变小、复数粘度增大、剪切变稀程度降低等。
The calculation results show that in such structure layout and layer, the structure of the layers of the maximum displacement Angle does not exceed standard of shear wall structure between layers of the biggest displacement Angle limit regulations. 计算结果表明:在此类结构布置和层数下,结构层间位移角的最大值未超过规范对剪力墙结构结构最大层间位移角的限值规定。
The welding angle distortions of a T-joint and a stiffened plate are predicted by inherent shear strain method and corresponding welding experiments are carried out. 本文用固有剪切应变法对T形接头和加筋板进行了焊接角变形预测,并开展了相应的焊接实验,预测结果和实验结果吻合较好。
Through the checking calculation and adjusting of the parameter of the shear wall using the deformation aim gained from the inelastic displacement spectra method and the fitted drift angle evaluation function of deferent performance level, the performance level of the shear wall could he realized. 根据弹塑性位移反应谱法得到的目标位移和本文拟合的剪力墙构件各性能状态位移角估算公式进行验算、调整,可以实现剪力墙结构不同的性态目标。