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Constitutive modeling for isotropic materials (Document No: 19880001789)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lindholm, Ulric S. |
| Copyright Year | 1985 |
| Description | The objective is to develop a unified constitutive model for finite element structural analysis of turbine engine hot-section components. This effort constitutes a different approach for non-linear finite-element computer codes which have heretofore been based on classical inelastic methods. The unified constitutive theory to be developed will avoid the simplifying assumptions of classical theory and should more accurately represent the behavior of superalloy materials under cyclic loading conditions and high temperature environments. During the first two years of the program, extensive experimental correlations were made with two representative unified models. The experiments were both uniaxial and biaxial at temperatures up to 1093 C (2000 F). In addition, the unified models were adopted to the MARC finite element code and used for stress analysis of notched bar and turbine blade geometries. |
| File Size | 212412 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880001789 |
| Archival Resource Key | ark:/13960/t0vq7tf5m |
| Language | English |
| Publisher Date | 1985-10-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Stress Analysis Deformation Turbine Blades Notches Cyclic Loads Gas Turbine Engines High Temperature Computer Programs Finite Element Method Kinetic Equations Heat Resistant Alloys Vanes Nickel Structural Analysis Bars Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
