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Subsection 4.14.4: General Specification of Biphasic-FSI Materials Up Chapter 4: Materials Subsection 4.15.1: Introduction

## 4.15 Prestrain material

In FEBio a prestrain can be defined for most materials that allows the user to prestrain or prestress the model before loading is applied. This is useful for modeling biologically tissues that exhibit residual strain, or whose initial state cannot assumed to be stress-free (e.g. arteries from in-vivo image data.)
If you use this feature in your published research, please cite the corresponding paper that details the theoretical framework and the implementation in FEBio [41].
Subsection 4.14.4: General Specification of Biphasic-FSI Materials Up Chapter 4: Materials Subsection 4.15.1: Introduction