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Erschienen in:

2012 | OriginalPaper | Buchkapitel

8. Soft and Biological Materials

verfasst von : Prof. Fabrice Pierron, Michel Grédiac

Erschienen in: The Virtual Fields Method

Verlag: Springer New York

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Abstract

This chapter is dedicated to the presentation of examples of application of the Virtual Fields Method to soft materials like foams and elastomers and biological materials such as wood and biological tissues. These have been grouped together because they share some common features such as high deformability (often implying the measurement of large strains) and high material variability (for wood or tissues). In terms of measurement techniques, the large strain issue means that digital image correlation will be the ideal technique for full-field measurements, whereas medical imaging techniques such as magnetic resonance elastography can be used for tissues (particularly for in vivo studies). As far as the VFM is concerned, large deformations will imply the use of the principle of virtual work within the framework of the mechanics of large deformation, using adequate tensors in either the reference or deformed configurations. Hyperelasticity can then be used to describe the large strain behavior of foams or elastomer, as well as some biological tissues. In this section, the following applications are described: hyperelastic law identification on elastomers, tangent Poisson’s ratio identification of a low density polymeric auxetic (negative Poisson’s ratio) foams, and the use of magnetic resonance based measurements for biological tissues and phantoms (synthetic materials mimicking the behavior of tissues). Finally, some examples on wood are also be presented that share many common features with the examples in Chap. 6 on composites.

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Titel: Soft and Biological Materials
verfasst von: Prof. Fabrice Pierron
Michel Grédiac
Verlag: Springer New York
Buch: The Virtual Fields Method
Print ISBN: 978-1-4614-1823-8

Electronic ISBN: 978-1-4614-1824-5

Copyright-Jahr: 2012
DOI: https://doi.org/10.1007/978-1-4614-1824-5_8

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