SwePub
Sök i LIBRIS databas

  Utökad sökning

WFRF:(Aspenberg K)
 

Sökning: WFRF:(Aspenberg K) > (2015) > A Fibre-Reinforced ...

  • Khayyeri, HanifehLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Lund University, Sweden (författare)

A Fibre-Reinforced Poroviscoelastic Model Accurately Describes the Biomechanical Behaviour of the Rat Achilles Tendon

  • Artikel/kapitelEngelska2015

Förlag, utgivningsår, omfång ...

  • 2015-06-01
  • Public Library of Science,2015
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-120290
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120290URI
  • https://doi.org/10.1371/journal.pone.0126869DOI
  • https://lup.lub.lu.se/record/7508602URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies|Marie Curie Intra-European Fellowship for Career Development [PIEF-GA-2012-626941]; Academy of Finland [259543]
  • Background Computational models of Achilles tendons can help understanding how healthy tendons are affected by repetitive loading and how the different tissue constituents contribute to the tendons biomechanical response. However, available models of Achilles tendon are limited in their description of the hierarchical multi-structural composition of the tissue. This study hypothesised that a poroviscoelastic fibre-reinforced model, previously successful in capturing cartilage biomechanical behaviour, can depict the biomechanical behaviour of the rat Achilles tendon found experimentally. Materials and Methods We developed a new material model of the Achilles tendon, which considers the tendons main constituents namely: water, proteoglycan matrix and collagen fibres. A hyperelastic formulation of the proteoglycan matrix enabled computations of large deformations of the tendon, and collagen fibres were modelled as viscoelastic. Specimen-specific finite element models were created of 9 rat Achilles tendons from an animal experiment and simulations were carried out following a repetitive tensile loading protocol. The material model parameters were calibrated against data from the rats by minimising the root mean squared error (RMS) between experimental force data and model output. Results and Conclusions All specimen models were successfully fitted to experimental data with high accuracy (RMS 0.42-1.02). Additional simulations predicted more compliant and soft tendon behaviour at reduced strain-rates compared to higher strain-rates that produce a stiff and brittle tendon response. Stress-relaxation simulations exhibited strain-dependent stress-relaxation behaviour where larger strains produced slower relaxation rates compared to smaller strain levels. Our simulations showed that the collagen fibres in the Achilles tendon are the main load-bearing component during tensile loading, where the orientation of the collagen fibres plays an important role for the tendons viscoelastic response. In conclusion, this model can capture the repetitive loading and unloading behaviour of intact and healthy Achilles tendons, which is a critical first step towards understanding tendon homeostasis and function as this biomechanical response changes in diseased tendons.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Gustafsson, AnnaLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Lund University, Sweden(Swepub:lu)bme-aag (författare)
  • Heuijerjans, AshleyEindhoven University of Technology, Netherlands (författare)
  • Matikainen, Marko K.Lappeenranta University of Technology, Finland (författare)
  • Julkunen, PetroKuopio University Hospital, Finland; University of Eastern Finland, Finland (författare)
  • Eliasson, PernillaLinköpings universitet,Avdelningen för kliniska vetenskaper,Medicinska fakulteten(Swepub:liu)perel67 (författare)
  • Aspenberg, PerLinköping University,Linköpings universitet,Avdelningen för kliniska vetenskaper,Medicinska fakulteten,Region Östergötland, Ortopedkliniken i Linköping(Swepub:liu)peras36 (författare)
  • Isaksson, HannaLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Lund University, Sweden(Swepub:lu)soli-hai (författare)
  • Avdelningen för Biomedicinsk teknikInstitutionen för biomedicinsk teknik (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:PLOS ONE: Public Library of Science10:61932-6203

Internetlänk

Hitta via bibliotek

  • PLOS ONE (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy