Results 51 to 60 of about 621 (129)

Fracture Analysis of 316L Specimens Fabricated via Material Extrusion Additive Manufacturing: Influence of Building Orientation and Notch Acuity

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 1, Page 511-530, January 2025.
ABSTRACT Three‐point bending tests were performed on notched specimens extracted from cuboids of 316L stainless steel produced via material extrusion additive manufacturing. The cuboids were printed vertically and horizontally on the printing platform to account for the building orientation effect on the mechanical performance.
Saveria Spiller, Sara Couto, Nima Razavi
wiley   +1 more source

A two‐phase volume of fluid approach to model rigid‐perfectly plastic granular materials

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 96, Issue 12, Page 1813-1829, December 2024.
A rigid‐perfectly plastic Bingham model is presented, and its implementation into an FV‐VoF procedure is validated for cohesive and noncohesive materials featuring different angles of repose. A close agreement of the predicted soil surface with experimental data is obtained for noncohesive material, and the failure lines, calculated from the introduced
W. Düsterhöft‐Wriggers   +2 more
wiley   +1 more source

Numerical analysis of downward progressive landslides in long natural slopes with sensitive clay

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
Landslides occurring in sensitive clay often result in widespread destruction, posing a significant risk to human lives and property due to the substantial decrease in undrained shear strength during deformation.
Yujia Zhang   +4 more
doaj   +1 more source

A hybrid Lagrangian–Eulerian particle finite element method for free‐surface and fluid–structure interaction problems

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 125, Issue 5, 15 March 2024.
Abstract The dynamics of fluid flows with free surfaces and interacting with highly deformable structures is a complex problem, attracting considerable attention. The Particle Finite Element Method (PFEM) is one of the various numerical methods recently proposed in the literature to simulate this type of problems. It is a mesh‐based Lagrangian approach,
Cheng Fu   +2 more
wiley   +1 more source

On the numerical modeling of granular material flows via the Particle Finite Element Method (PFEM)

open access: yesInternational Journal of Solids and Structures, 2015
The aim of this work is to describe a numerical framework for reliably and robustly simulating the different kinematic conditions exhibited by granular materials while spreading ---from a stagnant condition, when the material is at rest, to a transition to granular flow, and back to a deposit profile.
Dávalos, César   +3 more
openaire   +4 more sources

Validación experimental del Particle Finite Element Method (PFEM)

open access: yes, 2008
Preprint
Oñate, Eugenio   +4 more
openaire   +3 more sources

The particle finite element method. An overview

open access: yes, 2004
We present a general formulation for analysis of fluid-structure interaction problems using the particle finite element method (PFEM). The key feature of the PFEM is the use of a Lagrangian description to model the motion of nodes (particles) in both the
Pin, F.   +11 more
core   +1 more source

Modeling of Free Surface Flows with Elastic Bodies Interactions

open access: yes, 2008
In this paper, a series of new fluid and structure interactions test cases with strong free surface effects are presented and computations of such flows with the Particle Finite Element Method (PFEM) (Idelsohn, Oiiate, Del Pin and Calvo, 2006) are ...
Souto-Iglesias, A.   +8 more
core  

A Particle Finite Element Method for Machining Simulations

open access: yes, 2016
Metal cutting process is a nonlinear dynamic problem that includes geometrical, material, and contact nonlinearities. In this work a Lagrangian finite element approach for simulation of metal cutting processes is presented, based on the so-called ...
Ales Svoboda   +5 more
core   +1 more source

Comparison of smoothed particle method and particle finite element method in applied granular flow problems

open access: yes, 2009
Traditionally, discrete element (DE) method and finite element (FE) method are used in numerical simulation of granular flow problems. A drawback with the (DE) method is the limitations in modelling the extreme large number of particles, which normally ...
Häggblad, Hans-Åke   +4 more
core  

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