Destrade, M., Annaidh, A. and Coman, C.D. (2009) Bending instabilities of soft biological tissues. International Journal of Solids and Structures, 46(25-26), pp. 4322-4330. (doi: 10.1016/j.ijsolstr.2009.08.017)
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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.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Coman, Dr Ciprian |
| Authors: | Destrade, M., Annaidh, A., and Coman, C.D. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Mathematics and Statistics > Mathematics |
| Journal Name: | International Journal of Solids and Structures |
| ISSN: | 0020-7683 |
| ISSN (Online): | 1879-2146 |
| Published Online: | 28 August 2009 |
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