Journal ArticleDOI
Partitioned analysis of coupled mechanical systems
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TLDR
This is a tutorial article that reviews the use of partitioned analysis procedures for the analysis of coupled dynamical systems using the partitioned solution approach for multilevel decomposition aimed at massively parallel computation.About:
This article is published in Computer Methods in Applied Mechanics and Engineering.The article was published on 2001-03-02. It has received 806 citations till now. The article focuses on the topics: Dynamical systems theory & State variable.read more
Citations
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Computational modelling of impact damage in brittle materials
G. T. Camacho,Michael Ortiz +1 more
TL;DR: In this paper, a Lagrangian finite element method of fracture and fragmentation in brittle materials is developed, where a cohesive-law fracture model is used to propagate multiple cracks along arbitrary paths.
Journal ArticleDOI
The extended/generalized finite element method: An overview of the method and its applications
TL;DR: An overview of the extended/generalized finite element method (GEFM/XFEM) with emphasis on methodological issues is presented in this article, which enables accurate approximation of solutions that involve jumps, kinks, singularities, and other locally non-smooth features within elements.
Journal ArticleDOI
Reengineering Aircraft Structural Life Prediction Using a Digital Twin
TL;DR: A conceptual model of how the Digital Twin can be used for predicting the life of aircraft structure and assuring its structural integrity is presented and the technical challenges to developing and deploying a Digital Twin are discussed.
Journal ArticleDOI
Modelling and simulation of high‐speed machining
T. D. Marusich,Michael Ortiz +1 more
TL;DR: In this paper, a Lagrangian finite element model of orthogonal high-speed machining is developed, which accounts for dynamic effects, heat conduction, mesh-on-mesh contact with friction, and full thermo-mechanical coupling.
Journal ArticleDOI
Two efficient staggered algorithms for the serial and parallel solution of three-dimensional nonlinear transient aeroelastic problems
Charbel Farhat,Michel Lesoinne +1 more
TL;DR: This paper proposes two alternative serial and parallel staggered algorithms for the solution of coupled transient aeroelastic problems, and demonstrates their superior accuracy and computational efficiency with the flutter analysis of the AGARD Wing 445.6.
References
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Journal ArticleDOI
Matching fluid and structure meshes for aeroelastic computations : a parallel approach
Nathan Maman,Charbel Farhat +1 more
TL;DR: The key issues addressed by Matcher are described and the underlying parallel algorithm, which generates the data structures needed for handling arbitrary and non-conforming fluid/structure interfaces in aeroelastic computations, is described.
Journal ArticleDOI
A variational principle for the formulation of partitioned structural systems
TL;DR: In this article, a continuum-based variational principle is presented for the formulation of the discrete governing equations of partitioned structural systems, including coupled substructures as well as subdomains obtained by mesh decomposition.
Journal ArticleDOI
Partitioned Transient Analysis Procedures for Coupled-Field Problems: Accuracy Analysis
K. C. Park,Carlos A. Felippa +1 more
TL;DR: Partitioned solution procedures for direct time integration of second-order coupled-field systems are studied from the standpoint of accuracy in this article, where it is shown that the combined effect of partition, extrapolation and computational paths, dictates the choice of stable extrapolators and the preservation of rigid-body motions.
Journal ArticleDOI
Residual Potential and Approximate Methods for Three‐Dimensional Fluid‐Structure Interaction Problems
TL;DR: In this paper, a method developed previously for an analysis of the two-dimensional excitation of an elastic cylindrical shell by a transverse, transient acoustic wave is extended to three-dimensional applicability.
Journal ArticleDOI
Second-order structural identification procedure via state-space-based system identification
K. F. Alvin,Kwang-Chun Park +1 more
TL;DR: In this paper, a theory for transforming the system-theory-based realization models into the corresponding physical-coordinate-based structural models is presented, which can be implemented into a computational procedure and applied to several example problems.
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Two efficient staggered algorithms for the serial and parallel solution of three-dimensional nonlinear transient aeroelastic problems
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