查询词典 tensile stress

Through the analysis of the torsional stress produced in the open sections vehicle frame s under typical operation conditions the calculating formula is achieveal,which leads to the stress distribution of the open section frame and the ideas of improving the distribution of the torsional stress are discussed.

通过对常见开口截面车架在典型工况时扭转应力的分析，推导出扭转应力计算公式，从而得出了开口截面车架的一些应力分布规律，提出了改善车架扭转应力分布的具体措施。对汽车车架设计方案的拟定和车架应力分析具有指导作用

METHODS: The endodontic instrument was assumed as a metal conical bar. The normal stress of bending loads and the shear stress of torsional loads were calculated with the knowledge of mechanics. The relations between stress and such parameters as angle and radius of canal curvature, radius of instrument, polar moment of inertia, and metal elastic modulus were analyzed. The criteria for yielding and fracture of the instrument were discussed.

将根管器械刃部假设截面为圆的金属细锥杆，利用材料力学及断裂力学的原理与方法，分别计算根管器械在弯、扭载荷下的应力分布，分析应力与根管弯曲角度、根管弯曲半径、器械直径、器械横截面极惯性距、金属弹性模量等参数的确切关系；探讨器械屈服、断裂失效的准则。

METHODS: The endodontic instrument was assumed as a metal conical bar, the normal stress of bending loads and the shear stress of torsional loads were calculated with the knowledge of mechanics , the relations between stress and such parameters as angle and radius of canal curvature, radius of instrument, polar moment of inertia, metal elastic modulus were analyzed, the criteria for yielding and fracture of the instrument were discussed .

将根管器械刃部假设为截面为圆的金属细锥杆，利用材料力学及断裂力学的原理与方法，分别计算根管器械在弯、扭载荷下的应力分布，分析应力与根管弯曲角度、根管弯曲半径、器械直径、器械横截面极惯性距、金属弹性模量等参数的确切关系；探讨器械屈服、断裂失效的准则。

The information along3 D maximum shear stress tracing line is completely ascertained with the method of parameter transformation, then the changing rule of the normal stress along3 D maximum shear stress tracing line is discussed based on cobevel method.

利用坐标变换法证明了一般三维塑性流动问题任意点应力状态，可以完全由三维最大剪应力迹线上的信息确定，进而利用共斜面法给出了三维塑性流动问题沿最大剪应力迹线正应力的变化规律。

Because the weld is stacking, the transverse stress on the bottom surface of plane will become very high, so much as exceeding the longitudinal stress. The residual stress in steel structures can directly influence their ability of bearing loads.

焊接残余应力的存在，会直接影响到钢结构的承载能力，为了保证焊接结构的安全可靠，准确的推断焊接过程中的力学行为和残余应力是十分重要的课题。

The results showed that:The reductions in the shoot and root dry weights, leaf area,stern diameter of grafted plants were lower than those of ungrafted plants under the same NaCl stress.Na~+,MDA,H_2O_2 contents,O_2~- producing rate,Na~+/K~+ ratio, Na~+/Ca~(2+) ratio were lower,whereas K~+,solube sugar,shoot water content,SOD,POD, CAT,APX activity,the stability of AsA/DHA,Photosynthetic rate,transpiration rate and stomatal conductance in the leaf of grafted plants were higher than those of ungrafted plants at the same NaCl stress.Intercellular CO_2 concentration of grafted plants decreased whereas that of ungrafted plants increased significantly under salt stress.

结果表明，盐胁迫下，嫁接苗地上部和根干重、叶面积、茎粗受抑制的程度显著低于自根苗；嫁接苗叶片中Na~+、MDA、H_2O_2含量、超氧阴离子产生速率、Na~+/K~+和Na~+/Ca~(2+)比值显著低于自根苗，而叶片中K~+含量、可溶性糖含量、地上部含水量、SOD、POD、CAT、APX活性、AsA/DHA的稳定性、光合速率、蒸腾速率、气孔导度显著高于自根苗；嫁接苗的胞间CO_2浓度显著下降，自根苗的则显著上升。

Fiber Stress—Stress through a point in a part in which Stress distribution is not uniform.

纤维应力—通过应力分布不均匀的零件上的一点的应力。

Also, the conversion between counteracting force and deflection of the bridge is achieved. The study analyzes on the characteristics of the beams" stress and deformation and gets the beams" vertical fiexture stress and deflection, their rigidity rotation stress and lateral inner force caused by the beams distribution of load.

通过实测结果，得到了桥梁的支反力与挠度，箱梁桥的受力特点：包括纵向弯曲产生的竖向变位，畸变角及由畸变产生的隔板横向弯曲应力，纵向弯曲应力及箱形梁的剪力滞现象及影响因素，箱梁桥刚性转动效应和截面的歪扭情况，箱形梁在局部荷载作用的横向内力，桥面板的有效工作宽度，荷载的横向分配分析。

Results14.8% of the students of vestibule school were low stress, 68.8% of the students of vestibule school were in moderate stress, 15.7% of the students of vestibule school were high stress.

结果有14.6%的学生处于低应激水平，有69.7%的学生处于中等应激水平中，有15.6%的学生处于高度应激水平；且三组之间的SCL-90各因子差异有显著性(P.01)。

The average stress of matrix is zero, and the stress distribution be ameliorated in composite at zero stress temperature.

在零应力温度下，复合材料基体中的平均应力为零，基体中应力分布状态得到改善。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。