Results 11 to 20 of about 1,159 (203)
Fatigue crack growth in a compressor stage of a turbofan engine by FEM-DBEM approach
Procedia Structural Integrity, 2018 Abstract In this work, the fatigue crack-growth process in a rotating disk of an aircraft gas turbine engine has been simulated. The considered crack nucleated in the attachment between a blade and the disk of a compressor stage, both made of a two-phase titanium alloy.
Venanzio Giannella, Michele Perrella
exaly +5 more sources
Coupled FEM-DBEM method to assess crack growth in magnet system of Wendelstein 7-X [PDF]
Fracture and Structural Integrity, 2013 The fivefold symmetric modular stellarator Wendelstein 7-X (W7-X) is currently under construction in Greifswald, Germany. The superconducting coils of the magnet system are bolted onto a central support ring and interconnected with five so-called lateral
R. Citarella +4 more
doaj +5 more sources
Multiple crack propagation by DBEM in a riveted lap-joint
AIMS Materials Science, 2016 The fatigue behavior of a riveted lap joint is analyzed with the Dual Boundary Element Method (DBEM). A Multiple Site Damage (MSD) scenario is obtained from the simultaneous initiation, from the most loaded holes, and propagation of different cracks.
CITARELLA, Roberto Guglielmo +3 more
openaire +5 more sources
Drag-Based Ensemble Model (DBEM) to predict the heliospheric propagation of CMEs
, 2021 <p><span>The Drag-based Model (DBM) is an analytical model for heliospheric propagation of Coronal Mass Ejections (CMEs) that predicts the CME arrival time and speed at Earth or any other given target in the solar system. It is based on the equation of motion and depends on initial CME parameters, background solar wind speed,
Jasa Calogovic +6 more
+5 more sources
The Drag-based Ensemble Model (DBEM) for Coronal Mass Ejection Propagation [PDF]
The Astrophysical Journal, 2018 Abstract The drag-based model for heliospheric propagation of coronal mass ejections (CMEs) is a widely used analytical model that can predict CME arrival time and speed at a given heliospheric location. It is based on the assumption that the propagation of CMEs in interplanetary space is solely under the influence of ...
Mateja Dumbović +6 more
openaire +6 more sources
DBEM solutions to modified Helmholtz problems for FGMs of space–time-dependent properties
Results in PhysicsA combined Laplace transform (LT) and domain-boundary element method (DBEM) are utilized to obtain numerical solutions for a spatio-temporal coefficient modified Helmholtz-type equation with arbitrary initial conditions and source terms, addressing ...
Mohammad Ivan Azis
doaj +2 more sources
Enhanced FEM-DBEM approach for fatigue crack-growth simulation
, 2018 2016 ...
Venanzio Giannella
openaire +4 more sources
Wave attenuation by inclined porous plates using dual boundary element method
International Journal of Naval Architecture and Ocean Engineering, 2023 In this study, the wave attenuation by the inclined porous plates has been evaluated through a numerical approach. As a numerical method, we used the dual boundary element method (DBEM) that solves two distinct boundary integral equations (singular and ...
Hyunju Han, Il-Hyoung Cho
doaj +1 more source
Residual strength evaluation by DBEM for a cracked lap joint [PDF]
Fracture and Structural Integrity, 2016 The present work summarizes a numerical procedure aimed at the evaluation of the residual strength of a cracked lap joint, based on the competing failure mechanisms regulated by the R-curve analysis and plastic collapse.
R. Citarella
doaj +1 more source
Analysis of crack growth problems using the object-oriented program bemcracker2D [PDF]
Fracture and Structural Integrity, 2018 This paper presents an application of the boundary element method to the analysis of crack growth problems in linear elastic fracture mechanics and the correlation of results with experimental data.
Gilberto Gomes, Antonio C O Miranda
doaj +2 more sources