Vol. 6, No. 7-8, 2011

Download this article
Download this article. For screen
For printing
Recent Issues

Volume 12
Issue 3, 249–351
Issue 2, 147–247
Issue 1, 1–146

Volume 11, 5 issues

Volume 10, 5 issues

Volume 9, 5 issues

Volume 8, 8 issues

Volume 7, 10 issues

Volume 6, 9 issues

Volume 5, 6 issues

Volume 4, 10 issues

Volume 3, 10 issues

Volume 2, 10 issues

Volume 1, 8 issues

The Journal
Cover
Editorial Board
Research Statement
Scientific Advantage
Submission Guidelines
Submission Form
Subscriptions
Author Index
To Appear
 
ISSN: 1559-3959
Porcine dermis in uniaxial cyclic loading: Sample preparation, experimental results and modeling

Alexander E. Ehret, Marc Hollenstein, Edoardo Mazza and Mikhail Itskov

Vol. 6 (2011), No. 7-8, 1125–1135
Abstract
[an error occurred while processing this directive]

We present a straightforward technique to prepare thin samples of planar or bulky soft tissue with very accurate geometry. The experimental procedure includes the preparation of thin slices of tissue by means of a surgical dermatome and specimen extraction by die cutters. We illustrate this method in application to porcine dermal tissue. The prepared specimens were subjected to uniaxial cyclic tension along and across the lines of cleavage with increasing upper stretch limits. Besides a distinct anisotropic and nonlinear behavior, cyclic loading caused considerable preconditioning effects including softening and substantial residual deformations. This observed behavior is well represented by a recently proposed constitutive model accounting for the elastic and dissipative behavior of soft tissues.

Keywords
dermis, anisotropy, constitutive modeling, preconditioning, soft tissues, mechanical testing, cyclic loading
Milestones
Received: 1 July 2010
Revised: 10 December 2010
Accepted: 10 January 2011
Published: 21 December 2011
Authors
Alexander E. Ehret
Department of Continuum Mechanics
RWTH Aachen University
52056 Aachen
Germany
Marc Hollenstein
Institute for Mechanical Systems
ETH Zurich
8092 Zurich
Switzerland
Edoardo Mazza
Institute for Mechanical Systems
ETH Zurich
8092 Zurich
Switzerland
EMPA
8600 Dübendorf
Switzerland
Mikhail Itskov
Department of Continuum Mechanics
RWTH Aachen University
52056 Aachen
Germany