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A constitutive material model for nonlinear finite element structural analysis using an iterative matrix approach
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chan, Kwai S. Weber, Richard Koenig, Herbert A. Cassenti, Brice N. |
| Copyright Year | 1988 |
| Description | A unified numerical method for the integration of stiff time dependent constitutive equations is presented. The solution process is directly applied to a constitutive model proposed by Bodner. The theory confronts time dependent inelastic behavior coupled with both isotropic hardening and directional hardening behaviors. Predicted stress-strain responses from this model are compared to experimental data from cyclic tests on uniaxial specimens. An algorithm is developed for the efficient integration of the Bodner flow equation. A comparison is made with the Euler integration method. An analysis of computational time is presented for the three algorithms. |
| File Size | 239240 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880012137 |
| Archival Resource Key | ark:/13960/t5bc8vs2q |
| Language | English |
| Publisher Date | 1988-04-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Finite Element Method Time Dependence Flow Equations Stress-strain Relationships Algorithms Iterative Solution Hardening Materials Inelastic Stress Mathematical Models Matrix Methods 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 |
