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Cubic zig-zag enrichment of the classical kirchhoff kinematics for laminated and sandwich plates
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nemeth, Michael P. |
| Copyright Year | 2012 |
| Description | A detailed anaylsis and examples are presented that show how to enrich the kinematics of classical Kirchhoff plate theory by appending them with a set of continuous piecewise-cubic functions. This analysis is used to obtain functions that contain the effects of laminate heterogeneity and asymmetry on the variations of the inplane displacements and transverse shearing stresses, for use with a {3, 0} plate theory in which these distributions are specified apriori. The functions used for the enrichment are based on the improved zig-zag plate theory presented recently by Tessler, Di Scuva, and Gherlone. With the approach presented herein, the inplane displacements are represented by a set of continuous piecewise-cubic functions, and the transverse shearing stresses and strains are represented by a set of piecewise-quadratic functions that are discontinuous at the ply interfaces. |
| File Size | 408153 |
| Page Count | 33 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120008774 |
| Archival Resource Key | ark:/13960/t7zm0bf12 |
| Language | English |
| Publisher Date | 2012-05-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Plate Theory Deformation Mechanical Properties Laminates Sandwich Structures Displacement Heterogeneity Asymmetry Plates Structural Members Kirchhoff Law Cubic Equations Kinematics Shear Stress Functions Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
