585 - Study of relaxation modulus of soft elastic membrane
Aoyagi R.
Abstract
The characteristics of membranes in biological structures, such as the internal organs of the living body, blood vessels and the cuticle membranes in foods, have recently attracted interest. Many of these objects exhibit the stress relaxation behavior of decreasing stress over time with constant deformation. Herein, we report a theoretical analysis of the Youngfs modulus when a indenter consisting of a planar surface or a hemisphere-shaped cylindrical bar was pressed into a membrane fixed at its edges. We also measured the load over time and calculated the Young's modulus and relaxation modulus for comparison with the theory. As a result, We confirmed the validity and convenience of this proposed theoretical analysis.
Citation
Aoyagi R.: Study of relaxation modulus of soft elastic membrane, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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