Results 141 to 150 of about 423 (159)
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Non-linear MSD crack growth by DBEM for a riveted aeronautic reinforcement
Advances in Engineering Software, 2009Abstract A special specimen is created cutting a rectangular notched area from the surrounding of the upper left corner of a wide body aircraft door. Then a constant amplitude fatigue traction load is applied by a special servo-hydraulic machine, in order to induce a Multi Site Damage (MSD) scenario.
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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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DBEM Analysis of Axisymmetric Crack Growth in a Piston Crown
2008An engineering problem is considered in which an axisymmetric crack initiates from the inside of a piston crown due to both thermal and mechanical load from the combustion as shown in Fig.1. To study the crack propagation the boundary element method is well suited because discretization only occurs at the boundary.
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A Discrete Variational Framework for Crack Propagation via Potential Energy Minimization in the DBEM
This paper introduces a rigorous energetic framework for modeling crack propagation in isotropic linear elastic media, established upon a discrete variational formulation. Moving beyond traditional local growth criteria that depend on asymptotic crack-tip field extractions, the proposed formulation is derived from the Principle of Minimum Potential ...Beatriz Souza +2 more
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DBEM computation of T-stress and mixed-mode SIFs using interaction integral technique
Theoretical and Applied Fracture Mechanics, 2020Wei-Zhe Feng, Yanwei Dai
exaly
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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