A polyurethane-urea elastomer at low to extreme strain rates
Name
2109.15150v2.pdf
Description
Accepted version
Size
2.17 MB
Format
Adobe PDF
Checksum (MD5)
584a1dd03a4e589ad9043a7379b02dce
Author(s)
Lee, Jaehee
Veysset, David
Hsieh, Alex J
Rutledge, Gregory C
Cho, Hansohl
Date Issued
September 15, 2023
Journal
International Journal of Solids and Structures
Publisher
Elsevier BV
Citation
Lee, Jaehee, Veysset, David, Hsieh, Alex J, Rutledge, Gregory C and Cho, Hansohl. 2023. "A polyurethane-urea elastomer at low to extreme strain rates." International Journal of Solids and Structures, 280.
Version
Author's final manuscript
Abstract
A finite strain nonlinear constitutive model is presented to study the extreme mechanical behavior of a polyurethane-urea (PUU) well suited for many engineering applications. The micromechanically- and thermodynamically based constitutive model captures salient features in resilience and dissipation in the material from low to extreme strain rates. The extreme deformation features are further elucidated by laser-induced micro-particle impact tests for the material, where an ultrafast strain rate ( > 1 0 6 s−1) incurs. Numerical simulations for the strongly inhomogeneous deformation events are in good agreement with the experimental data, supporting the predictive capabilities of the constitutive model for the extreme deformation features of the PUU material over at least 9 orders of magnitude in strain rates ( 1 0 − 3 to 1 0 6 s−1).
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemical Engineering
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Creative Commons Attribution-Noncommercial-ShareAlike
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DOI of Published Version
https://doi.org/10.1016/j.ijsolstr.2023.112360
