Cited by 23Elasticity and Material ModelingAutomotive and Human Injury BiomechanicsCellular Mechanics and Interactions

Frequency dependent viscoelastic properties of porcine brain tissue

Open access
Li, Weiqi, Shepherd, Duncan E.T., Espino, Daniel M.·2020·Journal of the Mechanical Behavior of Biomedical Materials

Abstract

Brain tissue is vulnerable and sensitive, predisposed to potential damage under complicated loading conditions. Its material properties have been investigated, but the characterization of its viscoelastic properties is currently limited. The aim of this study was to investigate the viscoelastic properties of brain tissue. Porcine brain samples, dissected ex vivo in the coronal plane, were tested under compression using dynamic mechanical analysis over a range of frequencies between 0.1 and 35 Hz. Indenters with varying diameters of 8, 12 and 16 mm were used to study the effect on viscoelastic properties under a sinusoidally varying displacement with varying mean displacements (10%, 15% and 20% of a specimen height). As the indenter size increased, the storage and loss stiffness significantly increased (p < 0.05). The storage stiffness decreased significantly as the mean displacement decreased (p < 0.05). The average storage modulus was found to be 8.09 kPa and the average loss modulus was found being 4.85 kPa. Frequency dependent viscoelastic properties of brain are important to improve the accuracy in the computational modelling of the head to develop the prediction of brain injuries.

Integrity signals

Registry

Crossref · 10.1016/j.jmbbm.2019.103460

Cites

71 of 71 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

The text we found for this paper looks like another document, so its claims and self-check weren’t run. The registry and citation checks still apply.

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The text we found for this paper looks like another document, so the self-check wasn’t run.

Cites

Flagged first, then by citations

1 of the 72 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Li, W., Shepherd, D. E. T., & Espino, D. M.
Affiliations
University of Birmingham (GB)
Corresponding author
Li, Weiqi
Venue
Journal of the Mechanical Behavior of Biomedical Materials
Publisher
Elsevier BV
Published
2020-02
Volume
102
Pages
103460
ISSN
1751-6161 (ISSN-L)
OpenAlex
W2977256393
Cited by
23
References
72
Citations by year
2026: 2 · 2025: 6 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 4 · 2020: 4
FWCI
0.88
Type
journal article
Language
en
Locations
  • Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials (publishedVersion)
  • PubMed (publishedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion, cc-by-nc-nd)
Funders
Arthritis Research UK
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Elasticity and Material Modeling
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Automotive and Human Injury Biomechanics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
Keywords
porcine brain tissue, viscoelasticity, frequency dependence, storage modulus, loss modulus, indentation, indenter size, compression, brain injury prediction, dynamic mechanical analysis
MeSH terms
Animals, Biomechanical Phenomena, Brain, Elasticity, Stress, Mechanical, Swine, Viscosity

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review