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Constitutive modeling of superalloy single crystals with verification testing
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jordan, Eric Walker, Kevin P. |
| Copyright Year | 1985 |
| Description | The goal is the development of constitutive equations to describe the elevated temperature stress-strain behavior of single crystal turbine blade alloys. The program includes both the development of a suitable model and verification of the model through elevated temperature-torsion testing. A constitutive model is derived from postulated constitutive behavior on individual crystallographic slip systems. The behavior of the entire single crystal is then arrived at by summing up the slip on all the operative crystallographic slip systems. This type of formulation has a number of important advantages, including the prediction orientation dependence and the ability to directly represent the constitutive behavior in terms which metallurgists use in describing the micromechanisms. Here, the model is briefly described, followed by the experimental set-up and some experimental findings to date. |
| File Size | 524217 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880001787 |
| Archival Resource Key | ark:/13960/t6159g935 |
| Language | English |
| Publisher Date | 1985-10-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Stress Analysis Performance Tests Turbine Blades Gas Turbine Engines High Temperature Single Crystals Tensile Stress Stress-strain Relationships Heat Resistant Alloys Proving Inelastic Stress Models Nickel Torsion Constitutive Equations Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
