Application of the mixed formulation method to eliminate shear-locking phenomenon in the Peridynamic Mindlin plate modelSpringer Science and Business Media LLC - - Trang 1-16 - 2023
Ruqing Bai, Hakim Naceur, Jinglei Zhao, Jin Yi, Xueping Li, Shujin Yuan, Jun Luo, Liming Wang, Huayan Pu
Accurately predicting crack propagation in structures remains a key challenge
within the finite element method (FEM) framework. Despite developing the local
method to mitigate the challenges encountered in the FEM, this method is
computationally demanding and inadequate for accurately modeling fracture
processes in actual structures. Recently, a powerful nonlocal method,
Peridynamics (PD), has bee... hiện toàn bộ
Experimental and numerical studies on dynamic fracturing behavior of roughly jointed rockSpringer Science and Business Media LLC - - Trang 1-20 - 2024
Yatao Yan, Jianchun Li, Daisuke Fukuda, Hongyuan Liu
The surface roughness is an important feature of rock joints. Its effect on the
mechanical properties of joints is significant in characterizing dynamic failure
of natural rock masses. Both laboratory experiments and numerical simulation
analysis were conducted to investigate the dynamic fracturing of roughly jointed
granite under various loading rates. The modified split Hopkinson pressure bar
ap... hiện toàn bộ
An explicit/implicit Runge–Kutta-based PFEM model for the simulation of thermally coupled incompressible flowsSpringer Science and Business Media LLC - Tập 7 - Trang 57-69 - 2019
Julio Marti, Pavel Ryzhakov
A semi-explicit Lagrangian scheme for the simulation of thermally coupled
incompressible flow problems is presented. The model relies on combining an
explicit multi-step solver for the momentum equation with an implicit heat
equation solver. Computational cost of the model is reduced via application of
an efficient strategy adopted for the solution of momentum/continuity system by
the authors in t... hiện toàn bộ
A novel approach to model the flow of generalized Newtonian fluids with the finite pointset methodSpringer Science and Business Media LLC - Tập 9 - Trang 585-595 - 2021
Felix R. Saucedo-Zendejo, J. Miguel Nóbrega
Several numerical meshless methods have been proposed to try to solve some of
the limitations of traditional mesh-based methods. Among those, the finite
pointset method, which has been applied in several physical problems, shows a
great potential. This work presents an extension of the available numerical
approaches based on the finite pointset method to allow dealing with generalized
Newtonian fl... hiện toàn bộ
ForewordSpringer Science and Business Media LLC - Tập 6 - Trang 1-1 - 2019
Data-driven model order reduction for granular mediaSpringer Science and Business Media LLC - Tập 9 - Trang 15-28 - 2021
Erik Wallin, Martin Servin
We investigate the use of reduced-order modelling to run discrete element
simulations at higher speeds. Taking a data-driven approach, we run many offline
simulations in advance and train a model to predict the velocity field from the
mass distribution and system control signals. Rapid model inference of particle
velocities replaces the intense process of computing contact forces and velocity
upda... hiện toàn bộ
A multiscale DEM–FEM coupled approach for the investigation of granules as crash-absorber in ship buildingSpringer Science and Business Media LLC - - 2022
Mohsin Ali Chaudry, Christian Woitzik, Alexander Düster, Peter Wriggers
AbstractThis paper covers a numerical analysis of a novel approach to increasing
the crashworthiness of double hull ships. As proposed in Schöttelndreyer
(Füllstoffe in der Konstruktion: ein Konzept zur Verstärkung
vonSchiffsseitenhüllen, Technische Uni-versitt Hamburg, Hamburg, 2015), it
involves the usage of granular materials in the cavity of the double hull ship.
For the modeling of this probl... hiện toàn bộ
Computational assessment of immersed boundary–lattice Boltzmann method for complex moving boundary problemsSpringer Science and Business Media LLC - Tập 10 - Trang 155-172 - 2022
Sambit Majumder, Arnab Ghosh, Dipankar Narayan Basu, Ganesh Natarajan
In the present work, we investigate the accuracy and robustness of our in-house
OpenMP parallelized direct-forcing immersed boundary–lattice Boltzmann
(DF-IB-LB) solver by undertaking studies on accuracy, discrete conservation,
Galilean invariance and quantification of spurious force oscillations (SFO). Our
study reveals that DF-IB-LB exhibits first and second-order spatial accuracy for
velocity a... hiện toàn bộ