Mechanical Behaviour of Skin: A ReviewKalra A*, Lowe A and Al-Jumaily AM
Institute of Biomedical Technologies, Auckland University of Technology, New Zealand
- *Corresponding Author:
- Kalra A
Institute of Biomedical Technologies
Auckland University of Technology
E-mail: [email protected]
Received Date: March 29, 2016; Accepted Date: May 14, 2016; Published Date: May 24, 2016
Citation: Kalra A, Lowe A, Al-Jumaily AM (2016) Mechanical Behaviour of Skin: A Review. J Material Sci Eng 5:254. doi: 10.4172/2169-0022.1000254
Copyright: © 2016 Kalra A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Objective: The mechanical behaviour or the Young’s Modulus of the skin is measured as a ratio of the stress applied to the skin in vitro or in vivo over the skin deformation. The Young’s Modulus of skin is an important factor to estimate the characteristics of skin, to determine the course of a disease or to follow a cosmetic application. Methods: The mechanical behaviour of the skin is measured by changing the shape of skin by employing tensile, indentation, and suction and torsion tests. Results: Out of all the skin’s mechanical testing methods, suction tests are a common choice for skin testing, as they are easy to apply in vivo and consider both in-plane and normal loading conditions. Skin is found to be highly anisotropic and viscoelastic, with a range of Young’s Modulus between 5 kPa and 140 MPa. Conclusion: This paper reviews in vivo and in vitro reported values for Young’s Modulus of human skin for tensile, indentation, suction and torsion mechanical testing methods.