Dataset of Drop-Tower Experiments with Various Ice Shapes Impacting a Rigid Structure DOI: https://doi.org/10.15480/882.9069 Data type: experimental data in .txt-format Version: 001 Corresponding journal paper: ---------------------------- Title: Influence of the ice shape on ice-structure impact loads Journal: Cold Regions Science and Technology Reference: COLTEC_104175 DOI: 10.1016/j.coldregions.2024.104175 Data creator: ------------- Franciska Müller franciska.mueller@tuhh.de Hamburg University of Technology, Institute of Ship Structural Design and Analsysis ORCiD https://orcid.org/0000-0001-6055-3588 Contributing persons: --------------------- Angelo Böhm Hauke Herrnring Franz von Bock und Polach Sören Ehlers Context: -------- Understanding how different ice shapes affect the loads experienced by ship hulls or structures is vital for safety and design considerations. The IceShape project, funded by the Office of Naval Research, investigated ice-structure interaction focusing on the shape of impacting ice. Drop tower experiments conducted at the Hamburg University of Technology's Institute of Ship Structural Design and Analysis examined various ice shapes, including cylinders, cones, domes, wedges, ellipses, and other variations, subjected to single impacts against a steel plate. Analysis revealed two main failure modes based on ice geometry, highlighting significant differences in load magnitude. Correlations between contact area, cone angle, specimen length, peak force, pressure, and energy were observed. Detailed information on the experimental setup, test matrix, dimensions of tested ice shapes, and data analysis can be found in the paper "Influence of the ice shape on ice-structure impact loads" (DOI: 10.1016/j.coldregions.2024.104175). Methodology of data aquisition and post-processing: --------------------------------------------------- The dataset contains force-time and displacement-time records for all test runs. Force, measured by four load cells beneath the ice specimen, is summed up and presented as a single force-time curve per test run. Displacement, measured by a laser sensor, represents the drop hammer's movement. The data are cropped to highlight the relevant portion around the impact load peak. Each file includes time (seconds), force (kN), and displacement (mm) data for a single test run. The file name nomenclature is broken down as follows: ----------------------------------------------------- 1. truncated cone series tc200_a10_d200_v2000_1 • tc200: truncated cone series with an ice specimen length of 200 mm • a0: a is the cone angle alpha to the horizontal (10, 20 or 30◦). In case of the cylinder alpha is 0. • d200: the diameter of the specimen is 200 mm • v2000: the predefined impact velocity is 2000 mm/s • 1: test run number (each experiment was repeated at least three times) 2. shortened specimen test series sc200_a30_d100_v2000_cl50_1 • sc200: shortened specimen series with an ice specimen diameter of 200 mm • a30: cone angle to the horizontal (10, 20 or 30◦) • cl100: length of the cylindrical part of the specimen in mm • v2000: the predefined impact velocity is 2000 mm/s • 1: test run number (each experiment was repeated at least three times) 3. inclined cylinder ic200_a1_cl200_v2000_1 • ic200: inclined cylinder series with an ice specimen diameter of 200 mm • a1: inclination angle of the top surface to the horizontal (1,5 or 10◦) • cl200: cylinder length is 200 mm • v2000: the predefined impact velocity is 2000 mm/s • 1: test run number (each experiment was repeated at least three times) 4. special geometry test series we200_a30_cl200_v2000_1 • we200: ice specimen diameter is 200 mm and description of the shape: - we: wedge Figure 5g - sp: sphere or dome Figure 5c - cs: cone with sphere or rounded cone Figure 5e - py: pyramid Figure 5f - el: ellipse Figure 5d • a30: cone angle to the horizontal (10, 20 or 30◦) • cl200: cylinder length • v2000: the predefined impact velocity is 2000 mm/s • 1: test run number (each experiment was repeated at least three times)