Cyclic Deformation and Fatigue Data for Ti-6Al-4V ELI under Variable Amplitude Loading

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 (PO), and variable amplitude loading (VA). Tests were performed under fully-reversed, and mean strain/stress conditions. For each test conducted, two sets of data were collected; the cyclic (i.e. hysteresis loops) in log10 increments, and the peak and valley values of the stress-strain response for each cycle. In addition, residual fatigue lives are reported for tests with two-level block loading. For PO and VA experiments, fatigue lives are reported in terms of number of blocks to failure.