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@article{Terzano:2021:10.1016/j.jmbbm.2021.104530,
author = {Terzano, M and Spagnoli, A and Dini, D and Forte, AE},
doi = {10.1016/j.jmbbm.2021.104530},
journal = {Journal of The Mechanical Behavior of Biomedical Materials},
title = {Fluid-solid interaction in the rate-dependent failure of brain tissue and biomimicking gels},
url = {http://dx.doi.org/10.1016/j.jmbbm.2021.104530},
volume = {119},
year = {2021}
}
TY - JOUR
AB - Brain tissue is a heterogeneous material, constituted by a soft matrix filledwith cerebrospinal fluid. The interactions between, and the complexity of eachof these components are responsible for the non-linear rate-dependent behaviourthat characterizes what is one of the most complex tissue in nature. Here, weinvestigate the influence of the cutting rate on the fracture properties ofbrain, through wire cutting experiments. We also present a model for therate-dependent behaviour of fracture propagation in soft materials, whichcomprises the effects of fluid interaction through a poro-hyperelasticformulation. The method is developed in the framework of finite straincontinuum mechanics, implemented in a commercial finite element code, andapplied to the case of an edge-crack remotely loaded by a controlleddisplacement. Experimental and numerical results both show a toughening effectwith increasing rates, which is linked to the energy dissipated by thefluid-solid interactions in the process zone ahead of the crack.
AU - Terzano,M
AU - Spagnoli,A
AU - Dini,D
AU - Forte,AE
DO - 10.1016/j.jmbbm.2021.104530
PY - 2021///
SN - 1751-6161
TI - Fluid-solid interaction in the rate-dependent failure of brain tissue and biomimicking gels
T2 - Journal of The Mechanical Behavior of Biomedical Materials
UR - http://dx.doi.org/10.1016/j.jmbbm.2021.104530
UR - http://arxiv.org/abs/2102.11268v1
UR - http://hdl.handle.net/10044/1/89533
VL - 119
ER -