Finite Element Analysis and Experimental Verification of the Shape Factor for Narrow Sandwich Seals
- 1 May 1978
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 61 (5-6) , 263-267
- https://doi.org/10.1111/j.1151-2916.1978.tb09296.x
Abstract
Comparison of the results of 3‐dimensional (3D) and 2‐dimensional (2D) finite element analyses (FEA) shows that the 2D analysis is accurate enough for calculating the shape factor for narrow sandwich seals and is considerably less expensive. The 2D analysis confirms the accuracy of an earlier approximate theoretical solution, particularly for seals with skin‐to‐core thickness ratios of 0.5 to 2. For seals with extremely thin or thick skin the use of 2D FEA is recommended. The FEA results show that the shape factor does not change appreciably either with the modulus ratio, Es/Ec, or with the composite Poisson's ratio, v, although it has a marked dependence on the aspect ratio of the core layer. Experimental values of the shape factor show fairly good agreement among theory, FEA, and experiment and provide confidence in the proposed theory and the 2D FEA.Keywords
This publication has 1 reference indexed in Scilit:
- Theory of the Narrow Sandwich SealJournal of the American Ceramic Society, 1978