A hybrid frequency-temporal reduced-order method for nonlinear dynamics

A Daby-Seesaram, A Fau, PE Charbonnel, D Néron - Nonlinear Dynamics, 2023 - Springer
Solving dynamics problem in the frequency domain gives significant advantages compared
with solutions fully computed in the temporal domain, but history-dependent nonlinear …

[HTML][HTML] Path following using velocity-based approach in quasi-static analysis

SK Chandrashekhara, D Zupan - International Journal of Solids and …, 2023 - Elsevier
In the present work, we propose a novel implementation of arc-length method for the
computation of equilibrium paths for frame-like structures. We exploit the advantages of …

Maximum energy dissipation-based incremental approach for structural analyses involving discrete fracture propagation in quasi-brittle materials

SM Chianeh, D Dias-da-Costa - Computer Methods in Applied Mechanics …, 2024 - Elsevier
A maximum energy dissipation-based incremental approach (MEDIA) is proposed to
overcome limit points, eg strong snap-backs, in the fracture analysis of quasi-brittle …

Weakly-invasive LATIN-PGD for solving time-dependent non-linear parametrized problems in solid mechanics

R Scanff, D Néron, P Ladevèze, P Barabinot… - Computer Methods in …, 2022 - Elsevier
A weakly-invasive version of the LATIN-PGD method is introduced to compute reduced-
order models in solid mechanics for time-dependent non-linear parametrized problems …

A variationally coupled phase field and interface model for fracture in masonry

J Wambacq, J Ulloa, G Lombaert, S François - Computers & Structures, 2022 - Elsevier
This paper presents a computational model for unreinforced masonry structures, where
softening plasticity describes the behavior of the mortar joints, while a brittle phase-field …

A multi-temporal scale model reduction approach for the computation of fatigue damage

M Bhattacharyya, A Fau, U Nackenhorst… - Computer Methods in …, 2018 - Elsevier
One of the challenges of fatigue simulation using continuum damage mechanics framework
over the years has been reduction of numerical cost while maintaining acceptable accuracy …

A novel, total-iterative approach to model quasi-brittle materials

J Alfaiate, LJ Sluys - Engineering Fracture Mechanics, 2023 - Elsevier
In quasi-brittle materials, such as reinforced concrete, localisation of initially diffuse cracking
evolving in localised cracking patterns consists of a numerically challenging task. With …

Extension of incremental sequentially linear analysis to geometrical non-linearity with indirect displacement control

C Yu, P Hoogenboom, J Rots - Engineering structures, 2021 - Elsevier
The most widely used method for simulating the non-linear behaviour of concrete and
masonry structures is the Newton–Raphson method with arc-length control (NR method) …

A study on the LATIN-PGD method: Analysis of some variants in the light of the latest developments

R Scanff, S Nachar, PA Boucard, D Néron - Archives of computational …, 2021 - Springer
The LATIN-PGD method is a powerful alternative to the Newton–Raphson scheme for
solving non-linear time-dependent problems in combination with reduced-order modeling …

Generalization of load–unload and force-release sequentially linear methods

J Eliáš - International Journal of Damage Mechanics, 2015 - journals.sagepub.com
Two different non-iterative solving approaches for mechanical systems composed of
elements with saw-tooth constitutive laws have been described in the literature. The first …