A new heterogeneous asynchronous explicit–implicit time integrator for nonsmooth dynamics

FE Fekak, M Brun, A Gravouil, B Depale - Computational mechanics, 2017 - Springer
In computational structural dynamics, particularly in the presence of nonsmooth behavior,
the choice of the time-step and the time integrator has a critical impact on the feasibility of …

Heterogeneous asynchronous time integrators for computational structural dynamics

A Gravouil, A Combescure… - International Journal for …, 2015 - Wiley Online Library
Computational structural dynamics plays an essential role in the simulation of linear and
nonlinear systems. Indeed, the characteristics of the time integration procedure have a …

High-efficient decoupling method for coupling systems with multiple subdomains and time steps

P Yuan, Y Dong - Mechanical Systems and Signal Processing, 2022 - Elsevier
This paper proposes a high-efficient decoupling method with energy conservation property
to solve a coupling system with multiple subdomains and time steps using arbitrary …

A partitioned combined computational method for multi‐scale dynamic systems

P Yuan, S Adhikari, Y Dong - International Journal for …, 2023 - Wiley Online Library
A partitioned/combined computational method based on Newmark scheme is proposed to
analyze dynamic systems with different temporal scales and element scales. To effectively …

Two FETI-based heterogeneous time step coupling methods for Newmark and α-schemes derived from the energy method

M Brun, A Gravouil, A Combescure, A Limam - Computer methods in …, 2015 - Elsevier
The purpose of this paper is to describe a general methodology to obtain multi-time step
coupling methods for different time-integration schemes (Newmark, HHT-α, WBZ-α, CH-α) …

Multiple length/time-scale simulation of localized damage in composite structures using a Mesh Superposition Technique

L Gigliotti, ST Pinho - Composite Structures, 2015 - Elsevier
Abstract A Mesh Superposition Technique (MST) for the progressive transition between
differently-discretized subdomains is proposed and implemented in an FE code. The …

Multi-time-step coupling of peridynamics and classical continuum mechanics for dynamic brittle fracture

J Zhong, F Han, Z Du, X Guo - Engineering Fracture Mechanics, 2024 - Elsevier
Peridynamics (PD), as a nonlocal theory, is well-suited for solving problems with
discontinuities, such as cracks. However, the nonlocal effect of peridynamics makes it …

Comparative assessment of shear demand for RC beam-column joints under earthquake loading

A Marchisella, G Muciaccia - Applied Sciences, 2022 - mdpi.com
This paper focuses on the evaluation of bi-axial shear demand for reinforced concrete (RC)
beam–column joints assuming:(i) the SPEAR frame as a benchmark; and (ii) different …

External coupling software based on macro-and micro-time scales for explicit/implicit multi-time-step co-computations in structural dynamics

M Brun, A Batti, A Combescure, A Gravouil - Finite Elements in Analysis and …, 2014 - Elsevier
External coupling software based on the coupling algorithm proposed by Prakash and
Hjelmstad (PH method) is compared to the previous external coupling software based on the …

Explicit/implicit multi-time step co-simulation in unbounded medium with Rayleigh damping and application for wave barrier

S Li, M Brun, I Djeran-Maigre… - European Journal of …, 2020 - Taylor & Francis
Co-simulation strategies using both Abaqus/Explicit and Abaqus/Implicit are investigated for
analysing wave propagation in two-dimensional unbounded soil domain. The co-simulation …