Visco-hyperelastic characterization of human brain white matter micro-level constituents in different strain rates

M Ramzanpour, M Hosseini-Farid, J McLean… - Medical & Biological …, 2020 - Springer
In this study, we propose a computational characterization technique for obtaining the
material properties of axons and extracellular matrix (ECM) in human brain white matter. To …

The strain rates in the brain, brainstem, dura, and skull under dynamic loadings

M Hosseini-Farid, MS Amiri-Tehrani-Zadeh… - Mathematical and …, 2020 - mdpi.com
Knowing the precise material properties of intracranial head organs is crucial for studying
the biomechanics of head injury. It has been shown that these biological tissues are …

[HTML][HTML] Experimental characterization and constitutive modeling of thermoplastic polyurethane under complex uniaxial loading

SI Reyes, MF Vassiliou, D Konstantinidis - … of the Mechanics and Physics of …, 2024 - Elsevier
This paper presents the testing and constitutive modeling of a Thermoplastic Polyurethane
(TPU) compound used in commercial applications. The tested specimens were extracted …

[HTML][HTML] Validation of a three-dimensional finite element constitutive modeling approach for a thermoplastic polyurethane calibrated with uniaxial tests

SI Reyes, EL Lopez, MF Vassiliou - Engineering Structures, 2025 - Elsevier
This paper presents the three-dimensional finite element constitutive modeling validation for
a Thermoplastic Poly-Urethane (TPU) material. The material parameters are those given in a …

The mechanical properties of neurospheres

CK Okwara, R Vaez Ghaemi, C Yu, M Le… - Advanced …, 2021 - Wiley Online Library
Stem cell‐derived 3D tissues such as spheroids are excellent models for investigating
mechanisms of tissue formation and responses to physiological and mechanical cues …

Effect of static offsets on the nonlinear dynamic mechanical properties of human brain tissue

G Ramorino, A Gobetti, G Cornacchia… - Journal of the Mechanical …, 2022 - Elsevier
This study focuses on the variations in the brain tissue dynamic behaviour pointing out new
insight into the material nonlinear viscoelasticity. Shear dynamic response curves are …

A constrained particle swarm optimization algorithm for hyperelastic and visco-hyperelastic characterization of soft biological tissues

M Ramzanpour, M Hosseini-Farid… - International Journal …, 2020 - Taylor & Francis
A constrained particle swarm optimization algorithm (C-PSO) is introduced and modified for
hyperelastic and visco-hyperelastic characterization of bovine brain tissue at three different …

A New Dissipation Function to Model the Rate-Dependent Mechanical Behavior of Semilunar Valve Leaflets

A Anssari-Benam, YT Tseng… - Journal of …, 2023 - asmedigitalcollection.asme.org
A new dissipation function W v is devised and presented to capture the rate-dependent
mechanical behavior of the semilunar heart valves. Following the experimentally-guided …

Mesoscale simulation-based parametric study of damage potential in brain tissue using hyperelastic and internal state variable models

G He, L Fan, Y Liu - Journal of Biomechanical …, 2022 - asmedigitalcollection.asme.org
Two-dimensional mesoscale finite element analysis (FEA) of a multilayered brain tissue was
performed to calculate the damage-related average stress triaxiality and local maximum von …

Optimized Load-Independent Hyperelastic Microcharacterization of Human Brain White Matter

M Ramzanpour… - … and Science in …, 2022 - asmedigitalcollection.asme.org
A micromechanical methodology combined with genetic algorithm (GA) as a global
optimization method is used to find the material properties of axons and extracellular matrix …