Results 21 to 30 of about 1,159 (203)
Fluids, 2021 The present study deals with the performance of an U-shaped oscillating water column device under the action of oblique incident waves. To solve the associated boundary value problem, the dual boundary element method (DBEM) is used.
Kshma Trivedi +2 more
doaj +1 more source
The direct boundary element method: 2D site effects assessment on laterally varying layered media (methodology) [PDF]
, 2004 The Direct Boundary Element Method (DBEM) is presented to solve the elastodynamic field equations in 2D, and a complete comprehensive implementation is given. The DBEM is a useful approach to obtain reliable numerical estimates of site effects on seismic
Aki +28 more
core +2 more sources
Multi-axial fatigue numerical crack propagations in cruciform specimens
Fracture and Structural Integrity, 2019 Two cracks, initiated from the opposite tips of a central notch inclined by 45䒰, were considered in cruciform specimens made of Ti6246. A static load was applied to a cruciform arm while a cyclic load was applied along the other arm.
Venanzio Giannella, Michele Perrella
doaj +1 more source
Dynamic analysis of 2-D and 3-D quasi-brittle solids and structures by D/BEM [PDF]
Theoretical and Applied Mechanics, 2002 A general boundary element methodology for the dynamic analysis of 2-D and 3-D solids and structures exhibiting quasi-brittle material behavior is presented. Inelasticity is modeled with the aid of the elastic damage theory.
Hatzigeorgiou George D. +1 more
doaj +1 more source
Hydrodynamics of an U-shaped OWC device in a two-layer fluid system
Energy Reports, 2022 In this article, the effectiveness of an U-shaped “oscillating water column wave energy converter device (OWC-WEC)” is investigated in a two-layer fluid system. To solve the BVP, the “dual boundary element method” (DBEM) is employed.
Kshma Trivedi, Santanu Koley
doaj +1 more source
Fatigue crack growth simulation using the moving mesh technique
Fatigue &Fracture of Engineering Materials &Structures, Volume 46, Issue 12, Page 4606-4627, December 2023., 2023 Abstract This work proposes a finite element (FE)‐based numerical model that uses the moving mesh technique for simulating fatigue crack propagation phenomena inside material components subjected to cyclic loads. Precisely, the computational mesh is adjusted during the numerical simulation according to conditions dictated by the criteria of fracture ...
Domenico Ammendolea +4 more
wiley +1 more source
Drag-Based Model (DBM) Tools for Forecast of Coronal Mass Ejection Arrival Time and Speed
Frontiers in Astronomy and Space Sciences, 2021 Forecasting the arrival time of coronal mass ejections (CMEs) and their associated shocks is one of the key aspects of space weather research. One of the commonly used models is the analytical drag-based model (DBM) for heliospheric propagation of CMEs ...
Mateja Dumbović +7 more
doaj +1 more source
A new displacement-based approach to calculate stress intensity factors with the boundary element method [PDF]
, 2015 The analysis of cracked brittle mechanical components considering linear elastic fracture mechanics is usually reduced to the evaluation of stress intensity factors (SIFs).
Aliabadi M.H. +24 more
core +2 more sources
Extreme and compound ocean events are key drivers of projected low pelagic fish biomass
Global Change Biology, Volume 29, Issue 23, Page 6478-6492, December 2023., 2023 Changes in environmental conditions are bound to affect marine ecosystems under global warming. To predict and mitigate future impacts, we need a better understanding of the main stressors of marine ecosystems. Here, we specifically identify the environmental conditions associated with the most severe declines in the projected biomass of pelagic fish ...
Natacha Le Grix +4 more
wiley +1 more source
A Hybrid Experimental-numerical Sif Determination Technique [PDF]
, 2010 Hybrid methods, wherefore numerical and experimental data are used to calculate a critical parameter, have been used for several years with great success in Experimental Mechanics and, in particular, in Facture Mechanics.
Tavares, Paulo J. +2 more
core +1 more source