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Structural Engineering and Mechanics Volume 3, Number 4, July 1995 , pages 391-410 DOI: https://doi.org/10.12989/sem.1995.3.4.391 |
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AN ADAPTIVE-CONTROL OF SPATIAL-TEMPORAL DISCRETIZATION ERROR IN FINITE-ELEMENT ANALYSIS OF DYNAMIC PROBLEMS |
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CHOI CK, CHUNG HJ
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| Abstract | ||
| The application of adaptive finite element method to dynamic problems is investigated. Both the kinetic and strain energy errors induced by space and time discretization were estimated in a consistent manner and controlled by the simultaneous use of the adaptive mesh generation and the automatic time stepping. Also an optimal ratio of spatial discretization error to temporal discretization error was discussed. In this study it was found that the best performance can be obtained when the specified spatial and temporal discretization errors have the same value. Numerical examples are carried out to verify the performance of the procedure. | ||
| Key Words | ||
| ADAPTIVE ANALYSIS, DYNAMIC ANALYSIS, STRESS WAVE PROPAGATION, DISCRETIZATION ERROR, FINITE ELEMENT ANALYSIS, DIRECT TIME INTEGRATION, NEWMARK METHOD | ||
| Address | ||
| CHOI CK, KOREA ADV INST SCI & TECHNOL,DEPT CIVIL ENGN,TAEJON 305701,SOUTH KOREA | ||