DOE OSTI · 3005610
Exploring strain rate effects upon 3D materials using high speed in situ X-ray tomoscopy
Abstract
Cellular materials are ubiquitous in our modern society. They may be stochastic gas-blown foams (e.g., polyurethane), foamed starches (e.g., cereals), or, in this case, 3D printed microlattices. Failure in these materials is often driven by surface or sub-surface defects, which may be nucleated at a surface roughness, an interior void, or inclusion interfaces that may not be typically observable. Obfuscating our understanding further, bulk materials are known to exhibit strain-rate-dependent mechanical response, making a subsurface understanding of damage even more critical. For the first time, an in situ uniaxial mechanical loading stage that simultaneously rotates specimens up to 18 Hz was fielded at a synchrotron for 3D tomographic imaging. This capability opens a plethora of materials science opportunities to explore strain rate effects in materials and examining deformation, fracture, and delamination’s (in composites) for a complete 3D picture (movie) of material response. We demonstrate the deformation of 3D printed polymer lattice structures, of three different material types, at 0.25, 1.1, and 2.2 s −1 strain rates. We successfully imaged the 3D deformation of these materials and can directly compare the same printed structure to the three material types at three strain rates, all in 3D. Material point method simulations were applied to one of the materials to better understand the role of voids on the 3D printed structure’s performance.
Explore related subjects
Keep this discovery
Explore connections, maps & timelines
Patterson, Brian M. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000192447376), Quintana, Theresa E. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000271713660), Goodwin, Lynne Alese [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000306559086), Welch, Cynthia F. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000246386434), Brett, Jack Kevin [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000164454114), Sandoval, Estevan A. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000214032770), McCann, Michael Thompson [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:000000017645252X), Barclay, Paul Linford [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000229768756), Zhang, Duan Zhong [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000256112250), Thompson, Zachary [Psylotech, Evanston, IL (United States)], Arzoumanidis, Alex [Psylotech, Evanston, IL (United States)], Vo, Nghia [Brookhaven National Laboratory (BNL), Upton, NY (United States)], Drakopoulos, Michael [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0009000758900764). 2025-11-13. Exploring strain rate effects upon 3D materials using high speed in situ X-ray tomoscopy. https://doi.org/10.1016/j.tmater.2025.100080
Cite the original work for its findings. Save a collection to share your selection of sources.