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首页> 外文期刊>The Journal of the Textile Institute >An investigation into the reaction behavior of tubular braids due to internal pressure
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An investigation into the reaction behavior of tubular braids due to internal pressure

机译：内压引起的管状编织物反应行为的研究

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摘要

Braiding has many applications in different industries as an internal pressurized cylinder. In these conditions, a sustainable structure without any wrinkling and unevenness is quite necessary. Using thin wall structures with closed ends and under internal pressures as a braid is addressed in the present study. With the use of a silicon vessel as the core, the braids with different angles and weavings were produced. They were exposed to internal pressure from zero to failure point. All stages of change in the shapes of the samples were recorded by a camera and the pressure-diameter results were extracted in 10 s once. In this research, the authors elaborate on the theory of stress and wrinkling moment created in these braids under internal pressure, and then they develop a new testing method by which they compare the obtained results with the theory. Following that, the relationship between the angle and failure pressure is investigated to determine the best braid angle in braiding used as thin wall structures. In the braid angle of ± 55°, all the forces created in braid due to internal pressure are along with strands direction and the increase in the cylinder diameter of the braid has been completely controlled depending on strands' elongation. The rate of diameter increase in the angles of less than ± 55° is fast, especially in pressures close to failure pressure. However, in the bigger angles, the elongation or, in other words, the diameter decrease is observed in braiding.
机译：编织作为内部加压缸在不同行业中有许多应用。在这种情况下，非常需要一种没有皱纹和不平整的可持续结构。在本研究中，提出了使用具有封闭端并在内部压力下编织的薄壁结构。以硅制容器为芯，制成了不同角度和编织的编织物。他们承受了从零到失效点的内部压力。用照相机记录样品形状的所有变化阶段，并在10 s内提取一次压力直径结果。在这项研究中，作者详细阐述了这些编织物在内部压力下产生的应力和起皱力矩的理论，然后他们开发了一种新的测试方法，将所得结果与该理论进行比较。随后，研究角度与破坏压力之间的关系，以确定用作薄壁结构的编织物中的最佳编织角。在±55°的编织角度下，编织物中由于内部压力而产生的所有力都与线股方向一致，并且根据线股的伸长率完全控制了编织物圆柱直径的增加。小于±55°的角度的直径增加速度很快，尤其是在接近破坏压力的压力下。但是，在较大的角度下，在编织中观察到伸长或换句话说，直径减小。

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