Fifty shades of brain: a review on the mechanical testing and modeling of brain tissue

S Budday, TC Ovaert, GA Holzapfel… - … Methods in Engineering, 2020 - Springer
Brain tissue is not only one of the most important but also the most complex and compliant
tissue in the human body. While long underestimated, increasing evidence confirms that …

Multiplicative, non-Newtonian viscoelasticity models for rubber materials and brain tissues: numerical treatment and comparative studies

A Ricker, M Gierig, P Wriggers - Archives of computational methods in …, 2023 - Springer
In many aspects, elastomers and soft biological tissues exhibit similar mechanical properties
such as a pronounced nonlinear stress–strain relation and a viscoelastic response to …

A theory of finite viscoelasticity and numerical aspects

S Reese, S Govindjee - International journal of solids and structures, 1998 - Elsevier
Most current models for finite deformation viscoelasticity are restricted to linear evolution
laws for the viscous material behaviour. In this paper, we present a model for finite …

Rheological characterization of human brain tissue

S Budday, G Sommer, J Haybaeck, P Steinmann… - Acta biomaterialia, 2017 - Elsevier
The rheology of ultrasoft materials like the human brain is highly sensitive to regional and
temporal variations and to the type of loading. While recent experiments have shaped our …

Finite deformation thermo-mechanical behavior of thermally induced shape memory polymers

HJ Qi, TD Nguyen, F Castro, CM Yakacki… - Journal of the Mechanics …, 2008 - Elsevier
Shape memory polymers (SMPs) are polymers that can demonstrate programmable shape
memory effects. Typically, an SMP is pre-deformed from an initial shape to a deformed …

A thermoviscoelastic model for amorphous shape memory polymers: incorporating structural and stress relaxation

TD Nguyen, HJ Qi, F Castro, KN Long - … of the Mechanics and Physics of …, 2008 - Elsevier
A thermoviscoelastic constitutive model is developed for amorphous shape memory
polymers (SMP) based on the hypothesis that structural and stress relaxation are the primary …

Thermomechanical behavior of thermoset shape memory polymer programmed by cold-compression: testing and constitutive modeling

G Li, W Xu - Journal of the Mechanics and Physics of Solids, 2011 - Elsevier
Programming is a key process for thermally activated stress or strain recovery of shape
memory polymers (SMPs). Typically, programming requires an initial heating above the …

[HTML][HTML] Viscoelastic constitutive artificial neural networks (vCANNs)–A framework for data-driven anisotropic nonlinear finite viscoelasticity

KP Abdolazizi, K Linka, CJ Cyron - Journal of Computational Physics, 2024 - Elsevier
The constitutive behavior of polymeric materials is often modeled by finite linear viscoelastic
(FLV) or quasi-linear viscoelastic (QLV) models. These popular models are simplifications …

Theoretical and numerical aspects in the thermo-viscoelastic material behaviour of rubber-like polymers

S Reese, S Govindjee - Mechanics of Time-Dependent Materials, 1997 - Springer
Most current models for finite deformation thermo-viscoelasticity are restricted to linear
evolution laws for the viscous behaviour and to thermorheologically simple materials. In this …

A micromechanically motivated diffusion-based transient network model and its incorporation into finite rubber viscoelasticity

C Linder, M Tkachuk, C Miehe - Journal of the Mechanics and Physics of …, 2011 - Elsevier
This paper presents the development of a physical-based constitutive model for the
representation of viscous effects in rubber-like materials. The proposed model originates …