Bending instabilities of soft biological tissues
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|Title:||Bending instabilities of soft biological tissues||Authors:||Destrade, Michel
Ní Annaidh, Aisling
Coman, Ciprian D.
|Permanent link:||http://hdl.handle.net/10197/5931||Date:||Dec-2009||Abstract:||Rubber components and soft biological tissues are often subjected to large bending deformations while 'in service'. The circumferential line elements on the inner face of a bent block can contract up to a certain critical stretch ratio λcr (say) before bifurcation occurs and axial creases appear. For several models used to describe rubber, it is found that λcr=0.56, allowing for a 44% contraction. For models used to describe arteries it is found, somewhat surprisingly, that the strain-stiffening effect promotes instability. For example, the models used for the artery of a seventy-year old human predict that λcr=0.73, allowing only for a 27% contraction. Tensile experiments conducted on pig skin indicate that bending instabilities should occur even earlier there.||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||International Journal of Solids and Structures||Volume:||46||Issue:||25-26||Start page:||4322||End page:||4330||Copyright (published version):||2009 Elsevier||Keywords:||Large bending; Nonlinear elasticity; Bifurcation; Strain-stiffening effect; Soft biological tissue modeling||DOI:||10.1016/j.ijsolstr.2009.08.017||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Mechanical & Materials Engineering Research Collection|
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