| 1. | When the concentration of sr is 0 . 02 % , the shape of eutectic silicon will change to grain , and the ductibility of the alloy will be boosted greatly 在sr加入量为0 . 02时,共晶硅可以变为颗粒状,大大提高了合金的延伸率。 |
| 2. | Gaskets regularly furnished in class 150 and 300 wedgeplug valves are corrugated soft iron of excellent strength and ductibility . classes 600 - 1500 are ring - joint type 压力等级为150和300的楔形塞阀门通常配置的垫圈是波纹状软铁,具有优异的强度和延展性。压力等级600 - 1500则采用环连接类型。 |
| 3. | According to these , applying the virtual work theory , this paper analyzed the influence of active beam link on the terminal carrying capacity , stiffness and ductibility of three types of ebsf 接着在此基础上应用虚功原理,分别研究了耗能梁段长度对d型、 k型和v型三种偏心支撑框架的极限承载力、刚度以及延性的影响。 |
| 4. | Test and analysis results indicate that some little polypropylene fiber in cement concrete can not only reinforce the load _ carrying capacity and rigidity , but also control the crack width and strengthen the ductibility of beams 对比分析结果表明,适量聚丙烯纤维的掺入能够提高梁的承载能力和刚度,并能限制裂缝宽度,增加梁的延性。 |
| 5. | The results of experimental program clearly indicate that significant strengthening of reinforced concrete beams can be realized by bonding cfrp to the tension face of the beaxn , meanwhile the ductibility of beams decreased 观察了加固后梁的破坏形式,对破坏形式进行了分析。试验结果显示:外贴碳纤维对梁的正截面抗弯能力有明显提高,加固梁的刚度增加而延性降低。 |
| 6. | Similarly , according to the deformation mechanism of ebsf and the virtual work theory , the influence of three different active beam links on the terminal carrying capacity , stiffness and ductibility of ebsf is deducted 同样,根据偏心支撑框架的几何变形机制,应用虚功原理,重点推导并分析比较了分别采用d型、 k型或者v型支撑时对结构的极限承载力、弹性刚度以及延性的不同影响。 |
| 7. | According to the basic theory of the cement concrete and the properties of polypropylene fiber , the calculating formulas about beam for the normal section load _ carrying capacity and rigidity and ductibility are presented based on " the design code of concrete structure " ( gb50010 - 2002 ) 参照普通砼的基本理论,结合聚丙烯纤维砼的性能特点,在《规范》的基础上得到了单筋矩形截面梁正截面承载力、刚度和延性的计算公式,并与试验结果对比吻合较好。 |
| 8. | But this is not a problem for ship structure which is thin and good ductibility . the basic equation of statistical energy analysis is deduced in this paper , the shipboard noise of 295 , ooodwt vlcc is calculated based on sea , the factor effect on the noise of shipboard is discussed and some measurement to reduce the noise level is suggested 根据统计能量分析方法的基本原理,以实船为例进行了船舶机械设备等噪声声压水平的估算和船舶舱室噪声预示,并对影响船舶舱室噪声水平的各种因素进行了分析,提出了减小船舶舱室噪声水平的方法。 |
| 9. | In allusion to disjoint of damage model in material , member and structure level , two times poa - based global damage model is presented . this model includes synthetically stiffness , intensity and ductibility degrading by equivalent stiffness decay before and after damaged 针对材料、构件和结构层次的损伤模型存在着脱节问题,本文介绍了基于两次poa分析的整体损伤模型,通过结构受损前后等效刚度的衰减来综合考虑结构刚度、强度和延性的退化,并通过算例来验证该模型。 |
| 10. | The effects to beam for its normal section flexural capacity and rigidity and ductibility as well as other properties is discussed with different polypropylene fiber and different concrete strength by the bending test study herein on the reinforced concrete beams and the polypropylene fiber reinforced beams 本文通过对掺聚丙烯纤维砼配筋梁的试验研究,分析讨论了单筋矩形截面梁配筋率相同时,分别考虑聚丙烯纤维掺量和混凝土强度等级等因素对梁的正截面承载力、刚度及延性等几个方面的影响。 |