Such components are assumed to remain uncracked at the service limit state .

此类部件在使用极限状态上是认为能够保持 不 破裂的。

This papar presents the test results of deflections and crack-widths of two series of reinforced concrete beams and four series of uncracked and cracked prestressed concrete beams under long-term loading .

本文给出二批钢筋混凝土梁及四批未 裂缝和已裂缝的预应力混凝土梁在长期荷载作用下的挠度和裂缝宽度试验结果。

Computation formulas for long-term crack width of three patterns are obtained through the introduction of research achievement of stress redistribution caused by creep and shrinkage between the cracking section and uncracked section .

通过引入开裂截面和 未 开裂截面 收缩徐变引起的截面 内 钢筋和混凝土间 时 变应力重分布研究成果，获得了三种模式下长期裂缝宽度计算公式。

The Cl - and O2 concentrations at crack region were higher than uncracked regions so the corrosion rate of iron wires at crack region was higher than uncracked regions at early-immersed stage .

在浸泡初期，裂缝处 Cl~-、O2浓度比两侧高，裂缝处铁丝腐蚀速度高；

PC & PPC structures is discussed by means of stress analysis of uncracked status and cracked status . A comparison between the unified approach and the current design regulations is also presented .

在分析中 考虑了 混凝土 的 收缩 徐变 特性与预应力 钢筋 的 松弛 作用，并与现行的部分预应力混凝土结构设计规范进行了比较，以论证本文理论的正确性与适用性。

The results show that the weaken of crack directors has a little influence on stress release and little influence on stress distribution when the crack directors is uncracked .

实例计算结果表明：在 诱导缝 未开裂时，其削弱程度对 坝体应力的释放 程度有很小的差别，而对 坝体应力分布规律几乎没有影响；

By Wigner-Ville distribution the time-frequency features of the cracked rotor and the uncracked rotor were compared and an algorithm using Wigner-Ville distribution to identify the cracked rotor was proposed .

利用Wigner-Ville分布比较了裂纹转子与 无 裂纹转子的时频特性，提出了利用Wigner-Ville分布识别裂纹转子的方法。

The result shows the main component of the coating is SiC and a little of Si . There is a good gradient structure and no obvious interface between the uncracked SiC coating and C / SiC substrate .

结果显示：涂层主要由SiC及少量的 游离Si组成， 致密 不 开裂的SiC涂层与C/SiC复合坯体之间有很好的梯度过渡结构；

Based on damage mechanics this article analyzes the size effect of the maximum tensile strength of uncracked ceramic specimens and points out the reasons of the increment of tensile stress with the height decreasing .

本文用 细 观损伤力学的方法对 理想 的 无 裂纹陶瓷试样最大拉伸断裂应力的尺寸效应进行了分析，解释了材料的最大拉伸载荷随试件宽度的减小而增大的原因。

The Application of Boundary Element Method with isoparametric Elements in Computing Uncracked - Stress

八 节点等参边界元在 复杂 结构 细部 未 开裂应力计算中的应用

The dynamic equation of the transient response in a cracked rotor system was modelled the numerical simulation solutions of the uncracked rotor and the cracked rotor were obtained .

基于建立的裂纹转子瞬态回应动力学模型，得到了有 无 裂纹转子的数值仿真解。