Dynamic buckling behavior of long column made of grass fiber reinforced plastics for gas circuit breaker

被引：0

作者：

Hashimoto, Hiroaki ^{[1
]}

Mimura, Koji ^{[2
]}

Riku, Isamu ^{[2
]}

Umeda, Tsutomu ^{[2
]}

机构：

[1] Center for Technology Innovation-Mechanical Engineering, Hitachi,Ltd., Horiguchi, Hitachinaka

[2] Dept of Mech Eng., Osaka Prefecture Univ, Naka-ku, Sakai, Osaka

来源：

Zairyo/Journal of the Society of Materials Science, Japan | 2015年 / 64卷 / 10期

关键词：

Dynamic buckling load; Gas circuit breaker; Grass fiber reinforced plastics; Impact velocity; Slenderness ratio;

D O I：

10.2472/jsms.64.775

中图分类号：

学科分类号：

摘要：

In a gas circuit breaker of an electric power substation, a long operating rod made of an insulating material such as grass fiber reinforced plastics is employed, and when the breaker is operated, the rod was subjected to a strong impulsive compression load. In designing of the operating rods, therefore, the precise knowledge of their dynamic buckling loads is required. In this study, the dynamic elastic buckling behavior of GFRP rods the ends of which were tightly clamped was experimentally investigated. In the experiments, elastic buckling loads of slender GFRP rods in a wide range of loading velocities were measured by using the three different type testing machines: universal testing machine, hydraulic servo system and drop weight type impact loading machine. From the obtained experimental results, an empirical criterion for the dynamic buckling load of the GFRP rod was proposed in terms of the impact velocity and the slenderness ratio. Furthermore, we may show possibility that the proposed criterion can successfully describe buckling behaviors of long rods of many sorts of engineering materials with the same material parameters. © 2015 The Society of Materials Science, Japan.

引用

页码：775 / 782

页数：7

共 11 条

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