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膨胀金属薄膜广泛应用于世界各地的人行道设计和装饰用途。在文献中,很少有关于膨胀金属结构单元特性的信息。本文旨在研究压应力作用下方形和圆管状的膨胀金属薄膜的轴向破坏。当金属开始膨胀时,在金属片中可得到一种类似于钻石的单元,然后这些单元的特点是有两个几何轴线。一系列的试验测试可以印证膨胀金属的主轴和压力载荷之间角度的影响。从结果来看,根据轴线的方向有三种类型的破环模式:1)模式1的特点是塑性破坏机制;2)模式2会在个别元件处产生局部屈曲;3)模式3为管壁的整体屈曲。
Expanded metal films are widely used in the design and decoration of sidewalks all over the world. In the literature, little is known about the properties of expanded metal structural units. The purpose of this paper is to study the axial failure of square and round tubular expanded metal films under compressive stress. When the metal begins to expand, a diamond-like element is obtained in the metal sheet, and then these elements are characterized by two geometric axes. A series of pilot tests confirm the effect of the angle between the spindle of the expanded metal and the pressure load. From the results, there are three types of breaking modes depending on the direction of the axis: 1) mode 1 is characterized by a plastic failure mechanism; 2) mode 2 produces partial buckling at individual components; 3) mode 3 is the overall wall Buckling.