查询词典 ductility

The plasticity performance of the material can't play effectively in elastic design, and it's economy is poor. So it's inevitable to consider the plasticity development for the plate formed by ductility materials. And confirming the plastic limit bearing capacity of the plate plays an important role in the plastic design.

由于弹性设计不能有效发挥材料的塑性性能且经济性差，因此对于由延性材料形成的板的设计，考虑其塑性发展成为必然，而确定板的塑性极限承载能力对工程设计中的塑性设计有着重要的指导作用。

The breaking load and ductility of Ti joint increased on increasing the welding voltage, but the breaking strength decreased.

焊件破断负荷及延性均随焊接电压的增加而增加，但破断强度则减小。

In situ comparison of surface slip deformations showed that the persistent slip bands emerging at the surface was delayed, and the surface deformation homogenized after implantation, an indication of ductility improvement.

各离子注入使试样表面的变形分布更均匀，推迟了PSB's在表面的出现，表明离子注入延长了试样的裂纹萌生寿命。而疲劳断口分析表明，各金属离子注入对裂纹的扩展过程无明显影响。

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

The test results confirm that the seismic behavior of cross-shaped SRC columns is good. The volume-stirrup ratio is an important influencing factor on ductility of the members, in favor of improving the seismic behavior of members significantly.

实验结果证实十字型钢混凝土柱构件具有良好的抗震性能，而且体积配箍率是影响型钢混凝土柱构件延性的一个重要因素，对构件的抗震性能的改善具有非常明显作用。

Firstly,a state-of-the-art survey of hybrid FRP-concrete beam/deck systems is reviewed from the aspects of the main composite forms and their studies.Secondly,three typically analytical methods and three types of optimized failure modes and their corresponding ductility for hybrid FRP-concrete be...

文中首先从主要组合形式及其相关研究等方面回顾了FRP-混凝土组合梁/板系统的国内外研究现状，其次介绍了FRP-混凝土组合梁/板系统的3种常用分析方法和3种优化失效模式及相应的延性特征，接着列出了FRP-混凝土组合梁/板系统在国内外桥梁工程中的具体应用，最后探讨了该组合系统在今后研究中需要解决的一些问题。

The changes of penetration,ductility,softening point and viscosity of bitumens at different aging times are analyzed and the critical aging time of bitumens is determined based on these test results.

对原样沥青进行不同时间的老化，测试其在不同老化时间性能指标的变化，利用残留针入度比、残留粘度比、残留延度比和软化点增量等老化指标来分析沥青的老化趋势，确定出了沥青的临界老化时间。

Hence, the middle diaphragms effectively improve the integrity and ductility of the bridge.

跨中横隔梁的设置，还增强了桥梁的工作整体性和结构的延性。

The JIC is 0.1513 and the AK is 120.5 respectively. The scanning electron microscope and transmission electron micrograph shows that microstructure of the fracture toughness of new tiny deformation steel (GDL-1) was bunchy bainite+ martensite and a little retained austenite mixed structure. The retained austenitic film separates bunchy bainite into extra-fine subunits and improves the micro-ductility of the steel.

扫描电镜和透射电镜分析表明，空冷后新型高强韧GDL-1钢的显微组织为窄束状贝氏体＋马氏体和部分残余奥氏体复合组织，残余奥氏体以薄膜形态分割贝氏体板条而形成超细化亚单元，增加了材料的微观塑性。

Results showed that the ductility of bolt spjice is much better than welds, weaker splice joints develop larger plastic deformation, slipping between faying surfaces, bearing of bolts to hole surfaces and buckling of splicing plates are all ideal energy dissipation mechanism.

试验结果表明：螺栓拼接节点的延性远好于梁柱焊缝连接；较弱的拼接节点产生较大的塑性变形；接触面的滑移、螺栓与孔壁的挤压和翼缘拼接板的屈曲都具有良好的耗能能力。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失