Digital Speckle Pattern Interferometry in Biomechanics: In Situ Inverse Analysis on Birds Beaks to Obtain Elastic Modulus of the Bony Core and the Keratin Layer

摘要

The beak of finches is a very important example in evolution theory, and yet not fully understood. Furthermore, it is also fascinating from a mechanical point of view. In this paper we will use digital speckle pattern interferometry to obtain the displacement of the upper beak while loaded. Next, a finite element model is used in an inverse analysis, resulting in the modulus of the bony core and the keratin layer of this complex sample.