Seismic fragility analysis of a large-scale frame structure with local nonlinearities using an efficient reduced-order Newton-Raphson method

B Sun, Y Zhang, D Dai, L Wang, J Ou - Soil Dynamics and Earthquake …, 2023 - Elsevier
Finite-element dynamic time-history analysis based on stiffness variation is the main
approach to analyzing the seismic fragility of a structure, but using it in practical large-scale …

Sparse polynomial chaos expansions of frequency response functions using stochastic frequency transformation

V Yaghoubi, S Marelli, B Sudret… - Probabilistic engineering …, 2017 - Elsevier
Frequency response functions (FRFs) are important for assessing the behavior of stochastic
linear dynamic systems. For large systems, their evaluations are time-consuming even for a …

An improved explicit time-marching procedure with b-spline interpolation and weighted residual technique for structural seismic response analysis

T Liu, W Wen - Engineering Structures, 2022 - Elsevier
In this work, an improved calculation procedure based on an explicit time integration method
is formulated for structural seismic response analysis. The mathematical derivation and …

An effective geometric nonlinear analysis approach of framed structures with local material nonlinearities based on the reduced-order Newton-Raphson method

B Sun, Z Zeng, Y Zhang, W Shen, J Ou - Soil Dynamics and Earthquake …, 2023 - Elsevier
The P-Δ effect is essential to be considered in the quasi-static pushover or horizontal
seismic analysis of high-rise framed structures. Owing to the presence of the P-Δ effect …

An efficient reduced-order multi-scale simulation approach for nonlinear analysis of frame structures with nonlinear localization

B Sun, Z Zeng, T Sun, W Shen, J Ou - Journal of Earthquake …, 2024 - Taylor & Francis
This paper presents a reduced-order multi-scale simulation approach for nonlinear analysis
of structures with local nonlinearities. Using it, the traditional global structural analysis can …

Formulation and Analysis of a Cubic B-Spline-Based Time Integration Procedure for Structural Seismic Response Analysis

T Liu, P Wang, W Wen, F Feng - International Journal of Structural …, 2023 - World Scientific
In this study, an explicit time integration scheme based on cubic B-spline interpolation
strategy and momentum corrector is extended for structural seismic response analysis. The …

A dual-explicit model-based integration algorithm with higher-order accuracy for structural dynamics

B Fu, FT Zhang - Applied Mathematical Modelling, 2022 - Elsevier
Several model-based or structure-dependent integration algorithms with explicit
displacement formulation and unconditional stability are recently developed. According to …

Stochastic modeling and sensitivity analysis of underwater sound absorber rubber coating

SH Sohrabi, MJ Ketabdari - Applied Acoustics, 2020 - Elsevier
Modeling, analysis and optimizing the stealthiness of the submarine platforms are in the
focus of many research studies. Almost all of these methods have been applied to …

Dual-reduction order parallel simulation of large-scale problems with local material nonlinearities

B Sun, Z Zeng, K Wang, J Ye, Y Zhang, J Ou - Soil Dynamics and …, 2024 - Elsevier
Nonlinear finite element analysis is one of the primary techniques for static or transient
nonlinear analysis of engineering structures, allowing accurate modelling of complex load …

A novel model order reduction scheme for fast and accurate material nonlinear analyses of large-scale engineering structures

W Li, H Ma - Engineering Structures, 2019 - Elsevier
A new framework is developed for the fast and accurate analysis of large-scale engineering
structures considering material nonlinearity. A fundamental linear model is constructed first …