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Concurrent algorithms for transient nonlinear fe analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ortiz, M. |
| Copyright Year | 1987 |
| Description | A two-parameter class of time-stepping algorithms for nonlinear structural dynamics is investigated. What sets the present method apart from other concurrent algorithms is the fact that it can be used to some advantage in sequential machines as well. Thus, substantial speed-ups are obtained on a single processor as the number of subdomains is increased. An additional O(p) speed-up is obtained when p processors are utilized. The test case discussed is being repeated for a mesh comprising four times as many elements, in an effort to understand how the large scale asymptotic speed-ups are attained. A three dimensional example involving finite deformations and free body motions is also being pursued. A code optimized for concurrency in the Alliant FX8 computer is being finalized. This will provide the means for testing the performance of the algorithm in a multiprocessor environment. |
| File Size | 462721 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880002007 |
| Archival Resource Key | ark:/13960/t2t48kk8q |
| Language | English |
| Publisher Date | 1987-01-01 |
| Access Restriction | Open |
| Subject Keyword | Computer Programming And Software Dynamic Structural Analysis Finite Element Method Algorithms Asymptotic Series Nonlinearity Newton-raphson Method Equations of Motion Multiprocessing Computers Factorization Matrices Mathematics 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 |
