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ultimate capacity and initial stiffness of joints of the same plate reinforcement type increase, but ductility of joints decreases. With the same β, the in-plane flexural initial stiffness and ultimate... initial stiffness and ultimate capacity of joints. As thickness of reinforcement plate increases, the ductility of reinforced X-joints decreases. The concave and convex deformation of every specimen......
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; Abstract: The high tensile ductility of Mg-Gd-Y alloy at temperatures above 623 K and average engineering strain rate of 4.6×10-4 s-1 was investigated. The results show that the high ductility (elongation 77%) at 623 K is attributed to the basal, non-basal dislocations......
(RC) frame joints were manufactured, and the failure process, bearing capacity, hysteresis curves, ductility and energy dissipation capacity of the joints indirectly strengthened with self-locked CFRP..., ductility coefficient and energy dissipation capacity of joints reaches 9.2%-21.6%, 46.9%-61.8% and 86.0%-125.0% respectively, and so the seismic behaviors of the joints are improved greatly. In addition......
bird beak SHS T-joints is the largest. The ductilities of common bird beak and diamond bird beak SHS T-joints increase as β increases, but the ductility of the traditional SHS T-joints decreases as β...; ductility......
system according to structural characteristics of the CRTSⅡslab ballastless track system. Nonlinear seismic response analysis was carried out on two different seismic systems including ductility seismic... track; seismic isolation system; ductility system 对于铺设有砟轨道的普通铁路桥梁,因道砟为散粒体,刚度较小且离散性大,对桥梁纵向地震反应的影响相对较小,故早期铁路桥梁抗震设计较少考虑线路对桥梁的约束作用[1].但目前高速铁路桥梁广泛采用纵连板式无砟轨道体系及无缝线路,由于轨道系统纵向刚度较大,在一定程度上对桥梁起到纵向约束的作用,将各联桥梁联系成为一个弱耦......
resistance and ductility of prestressed concrete beams are reduced obviously. After cracking, under the same load increment, the pre-stressed tendons share more load in the test beam. It is suggested...-supported beam; anchorage failure; crack; bearing capacity; crack resistance; ductility 预应力混凝土结构在桥梁中得到广泛应用,随着时间的推移,待拆除桥梁数目呈增长趋势.拆除锚具后,钢束的黏结性能成为决定残余预应力的关键.人们针对预应力钢束与混凝土或孔道灌浆的黏结性能进行了很多研究,如:ROSE等[1-3]通过拉拔试验发现......
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; brass; bronze; damage; flow localization; stress-strain behavior; tensile strength; ductility 1 Introduction The grain size of a polycrystalline metal is directly affecting its mechanical properties.... However, the elongation to failure is reduced simultaneously. Around 68.4% increase in the yield stress accompanied by about 71.8% decrease in the ductility was observed after only one ECAP pass......
and Technology Beijing, Beijing 100083, China) Abstract:Effect of tin and antimony on hot ductility of GCr15 bearing steel as well as interaction between lanthanum and tramp dements, were studied by simulator Gleeble-1500 and the fractures for the tested steels were analyzed using SEM and EDS. The results show that with increasing contents of tin and antimony elements, the hot ductility of GCr15 beating......
