Carrion Patricio E, Shamsaei Nima, Moser Robert D
Laboratory for Fatigue & Additive Manufacturing Excellence (FAME), Department of Mechanical Engineering, Auburn University, Auburn, AL 36849, USA.
US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA.
Data Brief. 2017 May 19;13:180-186. doi: 10.1016/j.dib.2017.05.032. eCollection 2017 Aug.
This article presents the strain-based experimental data for Ti-6Al-4V ELI under non-constant amplitude cyclic loading. Uniaxial strain-controlled fatigue experiments were conducted under three different loading conditions, including two-level block loading (i.e. high-low and low-high), periodic overload, and variable amplitude loading. Tests were performed under fully-reversed, and mean strain/stress conditions. For each test conducted, two sets of data were collected; the cyclic stress-strain response (i.e. hysteresis loops) in log increments, and the peak and valley values of stress and strain for each cycle. Residual fatigue lives are reported for tests with two-level block loading, while for periodic overload and variable amplitude experiments, fatigue lives are reported in terms of number of blocks to failure.
本文展示了Ti-6Al-4V ELI在非等幅循环载荷下基于应变的实验数据。在三种不同加载条件下进行了单轴应变控制疲劳实验，包括两级块加载（即高-低和低-高）、周期性过载和变幅加载。测试在完全反向以及平均应变/应力条件下进行。对于所进行的每项测试，收集了两组数据；以对数增量表示的循环应力-应变响应（即滞后回线），以及每个循环的应力和应变的峰值和谷值。报告了两级块加载测试的剩余疲劳寿命，而对于周期性过载和变幅实验，疲劳寿命以失效时的块数表示。
