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Development of a simplified procedure for cyclic structural analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kaufman, A. |
| Copyright Year | 1984 |
| Description | Development was extended of a simplified inelastic analysis computer program (ANSYMP) for predicting the stress-strain history at the critical location of a thermomechanically cycled structure from an elastic solution. The program uses an iterative and incremental procedure to estimate the plastic strains from the material stress-strain properties and a plasticity hardening model. Creep effects can be calculated on the basis of stress relaxation at constant strain, creep at constant stress, or a combination of stress relaxation and creep accumulation. The simplified method was exercised on a number of problems involving uniaxial and multiaxial loading, isothermal and nonisothermal conditions, dwell times at various points in the cycles, different materials, and kinematic hardening. Good agreement was found between these analytical results and nonlinear finite-element solutions for these problems. The simplified analysis program used less than 1 percent of the CPU time required for a nonlinear finite-element analysis. |
| File Size | 1112549 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840012810 |
| Archival Resource Key | ark:/13960/t3906zm48 |
| Language | English |
| Publisher Date | 1984-03-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Stress-strain Relationships Cyclic Loads Gas Turbine Engines Nonlinearity Inelastic Stress Plastic Properties Integrators Notch Tests Wedges Computer Programs Creep Analysis 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 | Article |
