Results 51 to 60 of about 14,996 (301)
High-Speed Railway, 2023 Modal and damage identification based on ambient excitation can greatly improve the efficiency of high-speed railway bridge vibration detection. This paper first describes the basic principles of stochastic subspace identification, peak-picking, and ...
Jiahuan Li +3 more
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Parallel stochastic dynamic programming: finite element methods
Linear Algebra and its Applications, 1992 A multidimensional Markov dynamical system with continuous time is considered. The system includes a jump Poisson process and Gaussian motion as well as nonlinearities. A performance criterion of the system is introduced. It includes instantaneous cost and terminal cost functions.
Chung, S.L., Hanson, F.B., Xu, H.H.
openaire +2 more sources
A nonlinear stochastic finite element method for solving elastoplastic problems with uncertainties [PDF]
, 2023 This article presents an efficient nonlinear stochastic finite element method to solve stochastic elastoplastic problems. Similar to deterministic elastoplastic problems, we describe history-dependent stochastic elastoplastic behavior utilizing a series ...
Zheng, Zhibao, Nackenhorst, Udo
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Vibrations And Deformations Of Moderately Thick Plates In Stochastic Finite Element Method
Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2015 The paper deals with some chosen aspects of stochastic dynamical analysis of moderately thick plates. The discretization of the governing equations is described by the finite element method.
Grzywiński Maksym +2 more
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Foundations, 2023 We investigate the application of the Galerkin finite element method to approximate a stochastic semilinear space–time fractional wave equation. The equation is driven by integrated additive noise, and the time fractional order α∈(1,2).
Bernard A. Egwu, Yubin Yan
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Coupled Finite Volume and Finite Element Method Analysis of a Complex Large-Span Roof Structure [PDF]
, 2017 The main goal of this paper is to present coupled Computational Fluid Dynamics and structural analysis for the precise determination of wind impact on internal forces and deformations of structural elements of a longspan roof structure. The Finite Volume
J. Szafran +5 more
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Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Numerical Simulation of Some Steel Structural Elements with Uncertain Initial Porosity
Metals, 2021 The main research purpose of this work was to study the elasto-plastic responses of some fundamental steel structural elements exhibiting stochastic volumetric microvoids. The constitutive model of the steel material was consistent with the deterministic
Marcin Kamiński, Michał Strąkowski
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Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions
Advanced Engineering Materials, EarlyView.This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi +5 more
wiley +1 more source
Stochastic structural analysis of engineering components using the finite element method [PDF]
, 1993 Bibliography: p. 113-123.This thesis investigates probabilistic and stochastic methods for structural analysis which can be integrated into existing, commercially available finite element programs.
Weber, Marc Anton
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