Results 181 to 190 of about 1,159 (203)
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Drag-based ensemble model (DBEM)
2018The drag-based model (DBM) for heliospheric propagation of ICMEs is a widely used simple analytical model which can predict ICME arrival time and speed at a given heliospheric distance (Vr_nak et al., 2013, SolPhys). It is based on the assumption that the heliospheric propagation of ICMEs, is solely under the influence of MHD drag, where ICME ...
Dumbović, Mateja +3 more
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Comparison of dynamic stiffnesses of rigid square and rectangular foundations by DBEM and IBEM
International Journal for Numerical and Analytical Methods in Geomechanics, 1988AbstractIn this work, the Direct and Indirect Boundary Element Methods as applied to dynamic soil structure interaction problems, are compared. Both the methods are used to find the dynamic stiffnesses of rigid surface and embedded foundations. For surface foundations, the results obtained by the two methods were very close for the frequency range ...
Ahmad, S., Israil, A. S. M., Chen, K.
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DBEM WEB APPLICATION FOR HELIOSPHERIC PROPAGATION OF CMES
2018Forecasting of coronal mass ejections (CMEs) arrival is one of the major tasks for opera- tional space weather services. The Drag- based Model (DBM) with CME cone geometry is an analytical model that predicts the CME arrival time and speed at Earth or any other target in the solar system.
Čalogović, Jaša +3 more
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Numerical Simulation of 3-D Elastic Moduli with Elliptical Cracks Using FM-DBEM
2014 IEEE 8th International Symposium on Embedded Multicore/Manycore SoCs, 2014In the paper, the fast multiple dual boundary element method is applied to simulate the model of a elastic three-dimensional (3-D) isotropic solid with elliptical micro cracks in various sizes and estimate the global effective elastic moduli of the micro crack-weakened solid.
Lie Jin +3 more
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Crack propagation calculations in aircraft engines by coupled FEM-DBEM approach
2012New generation jet engines are subject to severe reduced fuel consumption requirements. This usually leads to thin components in which damage issues such as thermomechanical fatigue, creep and crack propagation can be quite important. The combination of stresses due to centrifugal loads and thermal stresses usually leads to mixed-mode loading ...
CITARELLA, Roberto Guglielmo +3 more
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On the accuracy of the fast hierarchical DBEM for the analysis of static and dynamic crack problems
2010In this paper the main features of a fast dual boundary element method based on the use of hierarchical matrices and iterative solvers are described and its effectiveness for fracture mechanics problems, both in the static and dynamic case, is demonstrated.
BENEDETTI, Ivano +2 more
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FEM-DBEM approach for crack propagation in a low pressure aeroengine turbine vane segment
Theoretical and Applied Fracture Mechanics, 2016Roberto Citarella, Venanzio Giannella
exaly
A general DBEM for mixed-mode cohesive crack problems
Theoretical and Applied Fracture MechanicsSérgio G.F. Cordeiro +2 more
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