帮忙翻译一下以下英语。

2.4. Strength and stiffness retention factors at elevated
temperature
Based on the experimental results, strength and stiffness
retention factors at elevated temperatures have been generated
for each of the tested grades of stainless steel, and these are
presented in Tables 1–5. The stiffness retention factor kE,θ is
defined as the elevated temperature initial tangent modulus Eθ ,
normalised by the initial tangent modulus at room temperature
E. The strength retention factor ky,θ is defined as the elevated
temperature strength at 2% total strain f2%,θ , normalised by the
room temperature 0.2% proof strength f0.2%. The dependency
of ky,θ on thickness relates to the room temperature differences
in 0.2% proof strength and ultimate strength for material
thickness less than or greater than 6 mm, as specified in EN
10088-2 [16]. Use of the 2% strain at elevated temperature
reflects the allowance for larger member deformations in fire
situations, and explains the occurrence of strength retention
factors greater than unity at low temperatures.
A comparison of the strength and stiffness retention factors
of grade 1.4301 stainless steel with those of structural carbon
steel (as set out in EN 1993-1-2 (2005) [17]) is shown
in Figs. 4 and 5, respectively. Figs. 4 and 5 demonstrate
the superior elevated temperature material properties of the
stainless steel, particularly in the important temperature region
(~600–800 C) that generally corresponds to approximately
30 min fire resistance; for example, at 800 C the strength
retention, ky,θ of the stainless steel is almost four times that
of carbon steel and the stiffness retention, kE,θ is seven times
that of carbon steel.
强度和刚度保留因子在高温下的试验

根据实验结果,不锈钢的强度和刚度保留因子在高温下产生了能供每个级别测试的反应效果。如表1-5所示。刚度保留因子kEθ定义是高温下的原切模数Eθ,在室温E时,原切模数使之恢复正常。强度保留因子 ky,θ 定义是高温强度为总应变的2%表示为f2%,θ。在室温是弹性强度 (f0.2%)0.2%时恢复正常。 ky,θ 对厚度的依赖与室温有关,区别
在于0.2 %弹限强度和
材料
厚度的极限强度小于或大于6毫米,如果 EN
10088-2 [16]中所规定的.
在高温用2%的用表明忍许有火试验时出现大量变型,也解释了强度保留因子在低温下比整体大的情况出现。
1.4301 级别不锈钢的强度和刚度保留因子和结构性碳钢相比(如EN 1993-1-2 (2005) [17]中所示) 在Figs. 4 和5分别显示, Figs. 4 和 5 说明不锈钢的超级高温材料性能,特别是在(~600–800 C) 这段重要的温度范围内,相当于大约 30 分钟的抗火能力,例如,在 800 度时,不锈钢的强度保留因子 ky,θ 是碳钢抗火、抗高温能力的四倍,而刚度保留因子则是碳钢的七倍。
I translated it myself. it's so professional that I can only get the rough meaning of it.

第1个回答  2009-05-14
2.4 。强度和刚度保留因素升高
温度
根据实验结果,强度和刚度
保留的因素在高温下产生了
为每一个测试等级的不锈钢,这是
分别载列于表1-5 。刚度保留因子科, θ是
界定为高温初始切线模量Eθ ,
正常化的初始切线模量在室温
体育的力量保留因子圻, θ的定义是高架
高温强度为2 %总应变F2代% , θ ,正常化的
室温0.2 %弹限强度f0.2 % 。的依赖
在肯塔基州, θ厚度关系到室温分歧
在0.2 %弹限强度和极限强度的材料
厚度小于或大于6毫米的规定,中文
10088-2 [ 16 ] 。使用2 %应变高温
反映了津贴变形较大的会员在火灾
情况,并解释了发生的强度保持
因素大于团结在低温条件下。
比较的强度和刚度保留因素
级1.4301不锈钢与结构的碳
钢铁(中所规定的英文1993年1月2日( 2005年) [ 17 ] )显示
在图。 4和5分别。无花果。 4日和5展示
优越的高温材料特性
不锈钢,尤其是在重要的温度区域
( 〜 600-800 c )在一般大约相当于
30分钟耐火;例如,在800 c该强度
保留,肯塔基州, θ不锈钢几乎是4倍,
碳钢和刚度保留,王克, θ是7倍
这碳钢。

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