000015106 001__ 15106
000015106 005__ 20161115100211.0
000015106 04107 $$aeng
000015106 046__ $$k2016-08-21
000015106 100__ $$aShearer, Tom
000015106 24500 $$aSequential Straightening and Loading Viscoelasticity

000015106 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015106 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015106 506__ $$arestricted
000015106 520__ $$2eng$$aCollagenous soft tissues exhibit complex viscoelastic behaviour, such as strain-rate dependence, hysteresis and strain-dependent relaxation. Many existing theories, such as quasi-linear viscoelasticity, fail to capture some of these features. In this paper, a model for soft tissue viscoelasticity that is based on the notion of “sequential straightening and loading”, whereby fibrils contribute to tissue stiffness only when taut, is presented. Each fibril is modelled as linear viscoelastic and has an associated critical strain at which it becomes taut. We show that, even given such simple constitutive behaviour, all of the desired viscoelastic features occur as a consequence of there being a distribution of such critical strains. The model is used to fit mechanical tests on three different rat tail tendon fascicles and we show that they can be reproduced with a single set of constitutive parameters, with the only difference being the distribution of the critical strains in each case.

000015106 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015106 653__ $$a

000015106 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015106 720__ $$aShearer, Tom
000015106 8560_ $$ffischerc@itam.cas.cz
000015106 8564_ $$s68405$$uhttps://invenio.itam.cas.cz/record/15106/files/TS.SM01-5.01.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1697, code TS.SM01-5.01
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000015106 962__ $$r13812
000015106 980__ $$aPAPER