Journal
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
Volume 10, Issue 5, Pages 651-661Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10237-010-0263-1
Keywords
Pure shear; Soft tissue testing; Dermatome; Skin; Dermis; Anisotropy; Preconditioning
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Funding
- Swiss National Science Foundation (NCCR CO-ME)
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This paper communicates a novel and robust method for the mechanical testing of thin layers of soft biological tissues with particular application to porcine skin. The key features include the use of a surgical dermatome and the highly defined deformation kinematics achieved by pure shear testing. Thin specimens of accurate thickness were prepared using a dermatome and were subjected to different quasi-static and dynamic loading protocols. Although simple in its experimental realisation, pure shear testing provides a number of advantages over other classic uni- and biaxial testing procedures. The preparation of thin specimens of porcine dermis, the mechanical tests as well as first representative results are described and discussed in detail. The results indicate a pronounced anisotropy between the directions along and across the cleavage lines and a strain rate-dependent response.
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