Low-velocity penetration impact behavior of TPMS strut-based lattices

We here disclose the experimental raw data for the work: Low-velocity penetration impact behavior of TPMS strut-based lattices. , This work evaluates the behavior of five distinct TPMS strut lattice architectures—Gyroid (+), Diamond (+), OCTO (O) (+), P (+), and IWP (+) — under low-velocity penetration impact. The lattices were fabricated using additive manufacturing with the same base material (PLA) and relative density (0.3). The dataset included:

The raw data from the impact tests, as provided my the test machine. Low-velocity impact tests were carried out using a Ceast Instron 9350 drop-weight testing machine. The TPMS lattice samples were simply supported by the fixture at the edges and an impact-free area of 75 mm2. The specimens were impacted at the center using a 16 mm diameter semicircular steel tup. Incident impact energy was selected as 4 J, since preliminary tests showed it generated damage without perforation.For this impact energy, the total impacted mass was 2.363 kg and the impact velocity was 1.84 m/s. The impactor was instrumented with a 22 kN load cell and an accelerometer to continuously measure and record the applied force, and the tup displacement, and velocity.

X-ray computed tomography raw data of the impact crater for each sample. A Zeiss Xradia 620 Versa (Dublin, CA, USA) was used. The flat part of the stem’s receiving taper was securely attached to the rotating plate of the Versa machine to facilitate the scanning process. The procedure was executed under the following operating conditions:the X-ray source was a tungsten target operated at 50 kV and 4.5 W. The detector used was a flat panel flat panel X-ray detector. The detector used was a 3000 × 2000-pixel flat panel (pixel size of 74.8 μm).The scan voxel size was 22.51 × 22.51 × 22.51 μm and 1600 projections were taken, each projection is the average of 5 images taken at 0.80s interval. The total scanning time was approximately 2 h and 15 min. After scanning and volume reconstruction, selected 2D slices were obtained using ImageJ software, version 1.53k. Videos of the scans are also included.