扭杆

It provided a correct and reasonable mathematical model for the analysis of the ultimate bearing capacity and crankle stability of the thin-walled structure.

论文在比较了两种运动描述方法（完全拉格朗日法和更新拉格朗日法）异同点并分析了非线性几何关系及大变形下的弹性物理关系的基础上，基于增量虚功原理推导了几何非线性空间梁元单元切线刚度矩阵，采取分模块形式，分别表示了轴力、弯矩、双力矩对几何矩阵的贡献；通过球面显式荷载增量迭代式弧长法求解方法编制程序，很好地实现了几何非线性增量荷载的自动步长选择及全过程跟踪，为薄壁杆系结构的极限承载力分析和弯扭失稳分析，提供了较为精确合理的分析力学模型。

An American maker supplies a rod of " twisted bam boo " which he claims equalizes the strain and pro duces better action.

一位美国一杆用品制造者"扭倒巴姆"声称均衡的应变和比特率分配好行动。

According to three different theoretical viewpoints related to limited value of flakiness ratio of T-steel web plate analysis is made,which effectively resolve the torsional-flexural buckling problem in compression rod design with single axle symmetry section and simplify design work.

着重介绍了剖分T型钢这种新型材料的研究现状，并对比关于T型钢腹板宽厚比限值的三种不同的理论观点，对三种观点进行了分析，使单轴对称截面压杆设计中比较复杂的弯扭屈曲问题得到有效的处理，从而使设计工作得以简化。

The results showed that the failure mode of roof truss is flexual-torsional buckling of top chord members, which accords with the phenomena observed during test, the ultimate load-bearing capacity is also very close to test data.

结果表明，屋架结构的破坏模式为上弦杆的整体弯扭屈曲，与试验观测到的现象一致，极限承载力和试验结果非常接近。

Similar comments apply to torsion if the torsional moment and twist per unit length are constant throughout a member.

如果扭矩和单位长度上扭角沿杆件为常量，则上述的结论也可以用于扭矩。

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。

In this paper, the baroclinic pole in baroclinic theory is supposed to be membrane-element subjected to shearing stress and normal stress in plain section. With the help of truss model, it meets the equation of two-dimension stress, Moire's strain corresponding equation and double-axis intenerate strain-stress relationship of concrete. It describes the load-behavior and working property of reinforced concrete combined torsion members in the whole load-deformation process.

本文将斜压场理论中的斜压杆表达成在平面内承受剪应力和正应力的钢筋混凝土薄膜元，借助桁架模型，满足二维应力平衡条件、莫尔应变协调条件和混凝土的双轴软化本构关系，揭示钢筋混凝土复合受力构件在受力-变形全过程中受力行为和工作性能，为研究复合受扭构件的变形行为打下了坚实的基础。

On the base of BNL Model, the non-linear space hysteresis model of steel member subjected to space forces is established with the concept of yield surface function and plastic flow rule, consequently the difficult basic problem in the elasto-plastic dynamic response analysis of torsionally coupled steel space frame under bi-directional horizontal earthquakes is solved.

本文以BNL模型为基础，结合屈服面函数概念和塑性流动法则，建立了空间受力钢杆件的非线性空间恢复力模型，解决了空间钢框架结构在双向水平地震作用下弹塑平扭耦合动力反应分析中的一个较难的基本问题。

As we were untangling poles and recovering skis, I apologized, explaining that I did not know how to stop.

我们抽出扭在一起的滑雪杆，找回滑雪板，我连忙道歉，解释说我不知道如何才能停下来。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了