The neutral axis

Maximum shear stress generally takes place at the neutral axis of ship section .

最大剪应力通常发生在剖面的中和轴处。

Based on the neutral axis theory , a new stiffness model of the switching crack was proposed .

本文利用中性轴理论建立了开闭裂纹刚度模型。

This paper presents a table and a diagram for determining the neutral axis of cracked partially prestressed concrete beams of rectangular sections .

本文首先给出部分预应力单筋矩形截面混凝土梁开裂后中和轴位置的计算图表。

Moreover , the neutral axis of the bending in the curvature plane deviates from the principal axis of the cross-section .

在曲线平面的弯曲中，中和轴也偏离截面主轴。

A general equation for determining the neutral axis in partially prestressed concrete T or I Section beams with tension and compression reinforcement is presented in this paper .

本文导出了最一般的双筋T形或工形截面部分预应力砼梁开裂后截面中和轴高度的基本方程，并对其作了分析讨论。

It is rather complicated to compute the neutral axis in partially pre-stressed concrete beams after cracking , since we have to solve a cubic equation .

计算部分预应力混凝土梁开裂后截面应力时，需求解中和轴高度的三次方程，使计算显得比较复杂。

In order to study the neutral axis location of high-strength bolts in extended end-plate connections , a series of joint tests from portal frame and theoretical analysis were executed .

为研究端板连接中高强度螺栓群的中和轴位置变化，对门式刚架外伸式端板连接进行了试验研究与理论计算。

In this paper author has found out a characteristic of a geometrical property in planar model , and has demonstrated the property of neutral axis position in plastic state , also has proposed a numerical method of neutral layer radius in extreme state .

本文找出了平面图形几何性质的一个特性，论证了塑性范围中性轴位置的特殊性，提出了极限状态下中性层半径的数值计算方法。

Because of appearance of non-symmetry stress distributing on section by using tangent modulus and elastic modulus , the separation between neutral axis and centroidal axis on section is found in deducing of the formula with bimodulus .

从中柔度压杆的双模量理论的推导过程中发现，由于引入切线模量与弹性模量之后，引起压杆截面上拉、压应力的不对称分布，致使中性轴与形心轴分离。

In this paper , the formulas of neutral axis and internal force for the elastic supported continuous beam and frame are derived by using the phased integration method , and an iterative program for nonlinear internal force is developed , an example is calculated and analyzed .

用分段积分法推导出不同模量弹性支承连续梁及框架的中性轴公式和内力计算表达式并编制非线性内力计算迭代程序。

For an FGM beam of power-law hardening , the location of the neutral axis is determined .

对幂律硬化的功能梯度梁，确定了中性轴的位置。

This scheme reflects not only the shift of the neutral axis , but also the shear buckling of the cross section , and thus it is free of the restriction of plane assumption in existing models .

这一宏模型不仅可以反映中和轴的移动，而且不再受现有宏模型中平面假定的限制，可以反映初始平截面的剪切翘曲。

This method does not need to judge the position of the neutral axis of the composite cross-section . This method will avoid the problem that the result is too conservative when the neutral axis lies in the top flange of the steel member as the traditional method dose .

该方法无需判断组合截面中性轴的位置，并且避免了按照传统方法计算当中性轴位于钢梁上翼缘时计算结果过于保守的问题；

This is because lateral growth stress is independent of the position of the oxide neutral axis and depends only on oxidation time and oxide kinetics .

这是因为侧向生长应和氧化物中性的位置无关，而只是取决于氧化时间和氧化动力学。

In the fully plastic condition , the neutral axis does not necessarily pass through the centroid .

在全塑状态下，中性轴不一定需要通过形心。

As CFRP layers increase , the flexibility and curvature decrease . The neutral axis transfers to the tension side .

受拉边CFRP层数的增加，构件的刚度增加，从而挠度减小，曲率减小，中性轴向受拉边偏移。

And on the special proportional loading factor , the neutral axis can be kept immobility . Finally , the calculating formulas and their simplifying formulas of the initial and the limit deviating point of the neutral axis , and the limit loads of the bending damage beams are obtained .

最后，获得了梁在弯曲损伤时的中性轴起始偏移点、极限偏移点和极限载荷的计算公式，以及它们的简化计算公式；

Study of the Methods to Compute the Location of the Neutral Axis of a Member Subjected to a Large Eccentric Compression

大偏心受压构件中性轴位置计算方法探讨

Based on the different moduli theory , the formula of neutral axis , normal stress , and shear stress of the structure is derived . Solution to the problem is presented with a computation example .

根据结构特点，该文给出了不同模量刚架的中性轴、正应力、剪应力计算公式以及用不同模量理论解此类结构的计算方法；

Taking the transfer station system as an investment system , the neutral axis and the centre of every plan investment system are obtained separately by layout optimization technique , so as to optimize the main line route and station site selection .

采用优化布局方法，是把中转站系统看作一个投资系统，利用平面投资系统的内在联系，分别求出各平面投资系统的中性轴和中心，从而优选干线的走向和计量站站址。

Reasonable Constitution of the Equivalent Section of Curved Beams and Rapid location of the Neutral Axis

曲梁折算断面的合理构形与快速确定中性轴的普遍公式

According to the concept of the ratio of equivalent plastic length to the depth of neutral axis in failure section given in reference , it is revealed that the ultimate stress in unbonded tendons is related to the ratio .

引用有关文献提出的等效塑性区长度与破坏截面中性轴高度的比值的概念，并认为无粘结预应力筋极限应力与此比值有关。

The equation gives the value of the bending stress at any distance v from the neutral axis .

此式给出了至中性轴任意距离V处的弯曲应力值。

In this paper , the influence of normal forces on bending damage of rectangular beam is studied , and the deviations of neutral axis and the damage limit curves are calculated and discussed .

就轴力对矩形截面梁弯曲损伤的影响进行了分析，并对中性轴的偏移、损伤极限曲线等进行了计算、讨论；

Traditionally , the ultimate strength is estimate by comparing allowable stress with the stress at the farthest point distant from the neutral axis on the deck or on the ship bottom , with the affecting of the mean vertical wave induced bending moment .

传统上，船体总纵强度是通过比较许用应力和在名义垂向波浪弯矩作用下甲板或船底上距中和轴最远点的弹性应力来进行评估的。

In our modeling , the similar results were obtained but also found another interesting result i.e. oxide planar stress distribution is determined by the growth stress when the oxide neutral axis coincide outer surface of the oxide layer .

在我们的分析模型中，得到了相似的结果但是有了其它新发现。比如当氧化物中性轴与氧化物外表面重合时，氧化物平面应力分布是由生长应力来决定的。

The relation between the moment and curvature of steel-bonded concrete beams is derived from using a damage model for concrete and the position changing regularity of the neutral axis is made out , Thus , a theoretical basis for the design of steel-bonded reinforcement is provided .

本文采用混凝土损伤模型。导出了粘钢混凝土梁的弯矩曲率关系以及中性轴位置的变化规律，为粘钢设计提供了理论依据；

The working status and the bearing capacity of fissure section are judged synthetically by strain distribution , the relation between field test strain and the applied moment , size of strain value and the stability of section neutral axis .

从开裂截面的应变分布、实测应变与加载弯矩关系、应变值大小以及截面中性轴的稳定性综合判断开裂截面的工作状态和承载能力。

With consideration of the asymmetry of cross section and the shift of ship if the ship damaged by the collision or grounding , choose the direction of total moment as the calculate coordinate , avoid the problem of inclined moment when confirm the neutral axis .

考虑到船体发生破损后，其剩余有效剖面是非对称的，船体还可能倾斜，选取船体所受弯矩方向的坐标系作为计算坐标系，在确定中和轴时避免了斜弯矩的问题。

Adopting the design of spoke-type sensing structure , the sensing head is composed of two Bragg gratings , which have different wavelengths and are bonded to the middle of two symmetrical spoke side surfaces with same angles along the direction of the spoke neutral axis .

采用轮辐式传感机构设计，将两个不同波长的布拉格光栅与轮辐中性轴线同时成相同角度，粘贴在两个对称轮辐侧面的中间位置构成传感头。