拉伸应变

The results showed that the tensile behavior of Kevlar 964C is strain rate and temperature dependent.

结果表明：Kevlar964C纤维束的拉伸性能与应变率和温度具有相关性。

The relationship between fracture toughness and notch toughness, tensile ductilities in lath martensite steel has been investigated.

研究了超高强度板条马氏体钢的平面应变断裂韧性与缺口韧性、拉伸塑性之间的关系。

In simple tension experiment, the stress-strain relationship submits Hook's law within the limit of proportionality .

摘要单向拉伸试验中，在比例极限内，应力应变关系服从胡克定律。

The relationship between stress and strain in a particular material is determined by means of a tensile test .

一个材料的应力和应变之间的关系是通过拉伸测试法决定的。

The relationship between stress and strain in a particular material is determined by means of a tensile test.

之间的关系应力和应变在一个特定的物质决心通过拉伸试验。

B The micropipette aspiration technique was used to study the effects of cyclic stretching on the mechanical property of rat calvirial osteoblasts which were loaded at 500με, 1000μεand 1500μεrespectively with the frequency of 0.4Hz.

利用微管吸吮技术研究应变分别为500με、1000με和1500με，频率为0.4Hz的周期性拉伸刺激对大鼠颅盖骨中分离出的成骨细胞的力学特性的影响。

The main contents and achievements are summarized as following: 1. The principle of tension leveling of metal strip is described systematically using relative tension and relative curvature on the basis of plane hypothesis including the stress distribution on the section, the condition to undergo plastic longitudinal elongation, the calculation of longitudinal elongation, the change of tension along the strip etc.. 2. The tension leveling process of metal strip on a multi-roll arrangement is investigated detailed by nonlinear finite element method and many rules to guide the strain, deformation, stress and bending moment are discovered and illustrated.

本文的主要内容和成果如下： 1、以平面假设为前提，采用解析分析方法，建立了以相对张力和相对弯曲曲率为基本参数的平面应变金属带材拉伸弯曲变形基本原理较为系统的描述，描述涉及到应力分布与两个基本参数的关系、带材塑性延伸的边界条件、带材延伸率的计算、带材张力变化的计算等。

Based on the experimental results, effects of relative density, strain rate and temperature on the tensile mechanical properties of nickel foam are analyzed.

在实验研究的基础上，分析了相对密度、应变率和温度对泡沫镍拉伸力学性能的影响。

Accordingly, the accident of sulfide stress corrosion cracking should be taken into account.The SSCC sensitivity and cracking time of 16Mn steel used to make the cold-high pressure segregator and common 16Mn steel in solutions with various H2S contents and pH values, simulated solution and operating solution were investigated by constant strain bend and slow strain rate test.Hydrogen diffusion coefficients of 16Mn steel, 16Mn steel and their welded seams were also tested by the electrolyte hydrogen charged method.Safety evaluation of the cold-high pressure segregator was given with above results.

针对制造过程中由于开孔失误而进行补焊的冷高压分离器在高压、高浓度的H2S环境的使用安全问题，采用了电化学充氢、恒应变和慢拉伸的实验方法，研究了制造冷高压分离器的主体材料16Mn钢和普通的16Mn钢及其焊缝的氢扩散系数，在不同H2S浓度、pH值，模拟冷高压分离器操作环境溶液和实际溶液中的腐蚀规律和硫化氢应力腐蚀开裂敏感性，结合实际腐蚀环境的检测和分析结果，对补焊后的冷高压分离器的使用安全给出了综合评估。

The tension and four-point bending experiments of W-section semirigid guardrail's material were completed within a static range.

对波形梁半刚性护栏实物材料和缩比模型材料进行静态范围内的拉伸及四点弯曲试验；研究了静载下两种材料的本构关系，考察了它们的应变率敏感性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。