Natural frequency evolution due to damage for a fixed-free steel beam

We provide data that represent the first ten natural frequencies for the transverse (out-of-plain) vibration modes for a steel cantilever beam in an intact and damaged state. Simulation is made using ANSYS; we use a mesh made with hexahedral elements that have the maximum edge dimension 2 mm. The beam has the length 1000 mm, the width 50 mm, and the thickness of 5 mm. The damage is an open crack that has the distance between its faces 2 mm, and the depth reducing in nine steps the beam thichness (for instance the damage with depth 1.25 mm reduces the thickness with 25% and this feature is used to characterize it). We generated 194 damages at different locations for each damage depth.

本数据集提供了钢制悬臂梁（cantilever beam）在完好与带损伤状态下的前10阶平面外横向振动模态（transverse (out-of-plain) vibration modes）固有频率（natural frequencies）数据。本次仿真采用ANSYS软件完成，网格使用最大边长为2mm的六面体单元（hexahedral elements）划分。该悬臂梁的尺寸参数为：长度1000mm，宽度50mm，厚度5mm。所引入的损伤为开口裂纹（open crack），其裂纹面间距为2mm，损伤深度以9个梯度逐级削减梁的厚度，例如深度1.25mm的损伤可使梁厚度减少25%，该特征可用于表征该类损伤。针对每一种损伤深度，我们在不同梁身位置生成了194处损伤。