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| Μέθοδος Οριακών Στοιχείων (BEM) στη Γεωμηχανική× | Μέθοδος Πεπερασμένων Λωρίδων× | Αλληλεπίδραση Εδάφους-Κατασκευής× | |
|---|---|---|---|
| Πεδίο | Πολιτική Μηχανική | Πολιτική Μηχανική | Πολιτική Μηχανική |
| Οικογένεια | Process / pipeline | Process / pipeline | Process / pipeline |
| Έτος προέλευσης≠ | 1978 | 1976 | 1974 |
| Δημιουργός≠ | Carlos Alberto Brebbia | Y. K. Cheung | Artur S. Veletsos |
| Τύπος≠ | Mesh-less numerical method for geomechanical problems | Reduced-dimension numerical method for prismatic structures | Dynamic analysis of coupled soil-foundation-structure systems |
| Θεμελιώδης πηγή≠ | Brebbia, C. A. (1978). The Boundary Element Method for Engineers. Pentech Press. ISBN: 0-08-020191-5 | Cheung, Y. K. (1976). Finite Strip Method in Structural Analysis. Pergamon Press. ISBN: 0-08-020191-5 | Veletsos, A. S., & Meek, J. W. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(2), 121-138. DOI ↗ |
| Εναλλακτικές ονομασίες | Boundary element method, BEM analysis, Indirect methods | FSM, Strip method, Semi-analytical finite element | SSI analysis, Foundation compliance, Dynamic foundation analysis |
| Συναφείς≠ | 3 | 3 | 4 |
| Σύνοψη≠ | The boundary element method (BEM) for geomechanics is a numerical approach that solves problems by discretizing only the boundary of the domain, using analytical solutions for the interior. Introduced by Brebbia in 1978 and refined for geotechnical applications by Crouch and Starfield, BEM is particularly effective for infinite or semi-infinite domains (underground excavations, foundations, rock masses) where finite element methods are impractical. | The finite strip method (FSM) is a semi-analytical numerical approach for analyzing prismatic or cylindrical structures by dividing them into strips in one direction and using analytical or exact solutions in the perpendicular direction. Developed by Cheung in 1976, FSM reduces computational cost and often provides superior accuracy for structures with regular geometry along one axis. | Soil-structure interaction (SSI) analysis accounts for the dynamic coupling between a structure and its supporting foundation soil, recognizing that the soil is not infinitely rigid. Formalized by Veletsos in 1974, this approach reveals how foundation compliance, radiation damping, and kinematic effects modify the structure's seismic response compared to fixed-base assumptions. |
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