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General Framework for Multi‐Degree‐of‐Freedom Stiffness Matrix Updating for Iterative Solution Algorithms in Hybrid Simulation

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 9, Page 1947-1967, 25 July 2026.
ABSTRACT Iterative solvers are advantageous for handling nonlinear structural analysis problems. The iterative solvers often require updating the stiffness matrix, which limits their application in static and pseudo‐dynamic hybrid simulations because: (1) updating the stiffness matrix of a system involving a physical specimen is challenging; (2 ...
Junyan Xiao, Oh‐Sung Kwon, Evan Bentz
wiley   +1 more source

Optimization of the grid-stiffened structure via PSO-LSSVR surrogate modeling and sensitivity analysis. [PDF]

Sci Rep
Gai J, Jian Y, Deng Q, Wang J, Zheng M, Yang Y.   +5 more
europepmc   +1 more source

Nonlinear seepage mechanical model and bifurcation analysis for fluid-solid coupling in fractured rock mass. [PDF]

Sci Rep
Zhengzheng C, Mengqi X, Tao R, Feng D, Zhenhua L, Wenqiang W.   +5 more
europepmc   +1 more source

Exceptional points preceding and enabling spontaneous symmetry breaking. [PDF]

Commun Phys
Hill L, Gohsrich JT, Ghosh A, Fauman J, Del'Haye P, Kunst FK.   +5 more
europepmc   +1 more source

A novel fractional-order coupled model integrating a damped oscillator equation with a non-Fickian heat conduction equation. [PDF]

Sci Rep
Li T, Zhao X, Zhang Y, Wang Y, Hu Y.
europepmc   +1 more source

A multiscale theory for network advection- reaction-diffusion. [PDF]

J Math Biol
Oliveri H, Cozzolino E, Goriely A.
europepmc   +1 more source

Go-or-grow models in biology: a monster on a leash. [PDF]

J Math Biol
Thiessen R, Conte M, Stepien TL, Hillen T.   +3 more
europepmc   +1 more source

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On an Eigenvector-Dependent Nonlinear Eigenvalue Problem

SIAM Journal on Matrix Analysis and Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yunfeng Cai, Lei-Hong Zhang, Zhaojun Bai   +2 more
exaly   +2 more sources

A minimization problem for an elliptic eigenvalue problem with nonlinear dependence on the eigenparameter

Nonlinear Analysis: Real World Applications, 2016
In this paper we examine an eigenvalue optimization problem. Given two nonlinear functions α(λ) and β(λ), find a subset D of the unit ball of measure A for which the first Dirichlet eigenvalue of the operator -div((α(λ)χD+β(λ)χDc)∇ u)=λu is as small as ...
Seyyed Abbas Mohammadi, Heinrich Voß
exaly   +3 more sources