High-velocity micro-particle impact on gelatin and synthetic hydrogel
Name
1-s2.0-S1751616118304739-main.pdf
Description
Main article
Size
1.37 MB
Format
Adobe PDF
Checksum (MD5)
24ee3c04304f18dc23554169a18c9357
Author(s)
Nelson, Keith. A.
Veysset, David Georges
Kooi, Steven E
Maznev, Alexei
Tang, Shengchang
Mijailovic, Aleksandar S.
Yang, Yun Jung
Geiser, Kyle Thomas
Van Vliet, Krystyn J
Olsen, Bradley D
Date Issued
October 2018
Journal
Journal of the Mechanical Behavior of Biomedical Materials
Publisher
Elsevier BV
Citation
Veysset, David et al. "High-velocity micro-particle impact on gelatin and synthetic hydrogel." Journal of the Mechanical Behavior of Biomedical Materials 86 (October 2018): 71-76 © 2018 Elsevier
Version
Author's final manuscript
Abstract
The high-velocity impact response of gelatin and synthetic hydrogel samples is investigated using a laser-based microballistic platform for launching and imaging supersonic micro-particles. The micro-particles are monitored during impact and penetration into the gels using a high-speed multi-frame camera that can record up to 16 images with nanosecond time resolution. The trajectories are compared with a Poncelet model for particle penetration, demonstrating good agreement between experiments and the model for impact in gelatin. The model is further validated on a synthetic hydrogel and the applicability of the results is discussed. We find the strength resistance parameter in the Poncelet model to be two orders of magnitude higher than in macroscopic experiments at comparable impact velocities. The results open prospects for testing high-rate behavior of soft materials on the microscale and for guiding the design of drug delivery methods using accelerated microparticles. Keywords: High-velocity impact; High-speed imaging; Gelatin; Hydrogel; Penetration
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.jmbbm.2018.06.016
