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Micromechanics-based inelastic finite element analysis accomplished via seamless integration of mac/gmc
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Arnold, Steven M. |
| Copyright Year | 2001 |
| Description | A critical issue in the micromechanics-based analysis of composite structures becomes the availability of a computationally efficient homogenization technique: one that is 1) Capable of handling the sophisticated, physically based, viscoelastoplastic constitutive and life models for each constituent; 2) Able to generate accurate displacement and stress fields at both the macro and the micro levels; 3) Compatible with the finite element method. The Generalized Method of Cells (GMC) developed by Paley and Aboudi is one such micromechanical model that has been shown to predict accurately the overall macro behavior of various types of composites given the required constituent properties. Specifically, the method provides "closed-form" expressions for the macroscopic composite response in terms of the properties, size, shape, distribution, and response of the individual constituents or phases that make up the material. Furthermore, expressions relating the internal stress and strain fields in the individual constituents in terms of the macroscopically applied stresses and strains are available through strain or stress concentration matrices. These expressions make possible the investigation of failure processes at the microscopic level at each step of an applied load history. |
| File Size | 137966 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050198847 |
| Archival Resource Key | ark:/13960/t8gf5rm59 |
| Language | English |
| Publisher Date | 2001-03-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Micromechanics Finite Element Method Viscoelasticity Stress Analysis Composite Materials Elastoplasticity Composite Structures Structural Analysis 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 |
