P09045: Membrane Characterization Test Stand

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Table of Contents

Step 1. Clarify The Problem

The characterization of biological materials that undergo unusual loading scenarios requires specialized equipment from what is available. A current research project is underway to create computer simulations of expanding alveolar sacs in order to model particle deposition in the lungs. However, little is known about the mechanical properties of lung tissue or the surrogate polymer material currently used in the physical simulations.

The device constructed for this project will be used to determine the mechanical properties of thin polymer membranes and eventually samples of lung tissue. A prime concern is the ability to obtain stress/strain relationships that are recognized in ANSYS.

Step 2. Search Externally

-Tensile Tester
-Biaxial Loader
-Pressure Loader
-Pressure-Hemispherical Loader

Step 3. Search Internally

-Membrane Indenter
-Volumetric Expansion

Step 4. Explore Systematically

Pugh Diagram-Rev. B

Pugh Diagram-Rev. B

Step 5. Initial Concept Sketches

Image:Concept Sketches-1.jpg Image:Concept Sketches-2.jpg Image:Concept Sketches-3.jpg

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