Fabrication and Compressive Yield Strength of Open Cell Corrugated Cellular Solids
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چکیده
Author: Jeong ho Choi Title: Fabrication and Compressive Yield Strength of Open Cell Corrugated Cellular Solids Institution: Embry-Riddle Aeronautical University Degree: Master of Science in Aerospace Engineering Year: 2005 This thesis studied the fabrication and compressive yield strength of# open cell corrugated cellular solids made from type 304 stainless steel. Test samples were made by corrugating woven wire meshes, then laminating these in a high temperature argon environment. Mesh sizes ranging from 9.5 pore/cm (24 pore/in) to 31.5 pore/cm (80 pore/in) with wire diameters ranging from 0.178 mm (0.007 in) to 0.3556 mm (0.014 in) were bonded using lithobraze 925 (Ag-7.5Cu-0.2Li) to create cellular solids having relative densities ranging from 0.0384 to 0.0920. Test samples were then quasistatically compressed to measure the stress-strain response. The stress level at 25% strain (compressive yield strength) was plotted as a function of relative density and then compared to predicted behavior. It was found that the relative compressive yield strength variation with relative density could be accurately modeled using the Gibson-Ashby open cell model.
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