Calculation method for uniform distribution of elongation factor of I beam web and flange

工字钢腿腰 延伸系数 均匀分配的计算方法

At the elastic stage the deformation is carried mainly through the uniform elongation of the bond between atoms .

在室温下，弹性阶段的形变主要是通过原子间键的 均匀 伸长进行的。

The results indicated that the steel bars with value of uniform elongation over 7 % and strain-hardening ratio more than 1.25 was capable of satisfying the demands of Chinese seismic code .

结果表明 均匀 伸长率不小于7%，强屈比不小于1.25的钢筋，能够满足中国规范对柱子的抗震要求。

For tensile properties tiny and uniform microstructure is helpful for improving mechanical properties of alloy including yield strength tensile strength and elongation .

对于短时拉伸性能而言，细小 均匀的显微组织，有利于提高合金的力学性能，包括屈服强度、抗拉强度和 延伸 率。

The retained austenite transformation prior to the necking of the example enhanced the uniform elongation rate .

分析认为：残余奥氏体在颈缩发生前的较完全转变有利于提高 均匀 延伸率；

The study on ultrasonic melt treatment of the 7055 aluminum alloy followed by semi-continuous casting confirms that ultrasonic melt treatment could uniform the cast structure and reduce the defects in the cast especially suppresses the cracking meanwhile improves the electric conductivity 、 tensile strength and elongation .

7055铝合金熔体超声处理后半连铸，与熔体未经超声处理相比，铸锭凝固组织 均匀，缺陷少，宏观开裂现象被抑制，且合金电导率、抗拉强度和 伸长率有所提高。

A more uniform strength of rupture and the rupture elongation of the fabric can be obtained in each direction .

织物各向的断裂强度和断裂 伸长也比二向织物 均匀。

The milled powder fabricated at velocity of 190 r / min and 6 h was compacted and extruded into the composite with uniform distribution of SiC particles and with 650 MPa of tensile strength and exceeded 5 % of elongation .

转速190r/min、球磨6h制备的复合粉末经高温真空热压、挤压后的复合材料SiC颗粒 均匀分布，材料的抗拉强度高达650MPa， 延伸 率大于5%。

But PC steel bars ' tensile ratio and uniform elongation slightly lower than high-strength steel wire and its tensility inferior to high-strength steel wire .

但PC棒的强屈比和 均匀 伸长率略低于高强钢丝，延性相对不如后者。

The uniform elongation is the characteristic strain of reinforcement steel at maximum force in simple tension test it is an important indicator to reflect the ductility of reinforcing steel and directly affects the seismic behavior of structure .

钢筋在拉伸试验中，达到最大作用力时对应的总 伸长率为 均匀 伸长率，它是反映钢筋延性的重要指标，直接关系到结构的抗震性能。

In ductile iron the size and morphology of graphite becomes uniform and elongation is improved .

在球墨铸铁中，石墨大小、形状变得 均匀，改善了 伸长率。