Results 11 to 20 of about 69 (68)
Evaluation of Fracture Parameters by Coupling the Edge-Based Smoothed Finite Element Method and the Scaled Boundary Finite Element Method [PDF]
Journal of Applied and Computational Mechanics, 2019 This paper presents a technique to evaluate the fracture parameters by combining the edge based smoothed finite element method (ESFEM) and the scaled boundary finite element method (SBFEM).
M. Surendran +2 more
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SBFEM with reduced modal basis for hydrodynamic bearings
Proceedings in Applied Mathematics and Mechanics, Volume 23, Issue 2, October 2023., 2023 Abstract The numerical effort of transient rotordynamic simulations is often dominated by the computation of nonlinear hydrodynamic bearing forces. These forces are described by the Reynolds equation and need to be computed at every time step. Usually, numerical models, analytical approximations, or look‐up table techniques are employed, depending on ...
Simon Pfeil +2 more
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Geofluids, 2021 This paper presents a stochastic analysis method for linear elastic fracture mechanics using the Monte Carlo simulations (MCs) and the scaled boundary finite element method (SBFEM) based on proper orthogonal decomposition (POD) and radial basis functions
Xiaowei Shen +4 more
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International Journal for Numerical Methods in Engineering, Volume 124, Issue 17, Page 3603-3636, 15 September 2023., 2023 Summary A general technique to develop arbitrary‐sided polygonal elements based on the scaled boundary finite element method is presented. Shape functions are derived from the solution of the Poisson's equation in contrast to the well‐known Laplace shape functions that are only linearly complete.
B Xiao +5 more
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Yantu gongcheng xuebao, 2023 For the slope terrain site, the asymmetric and irregular boundary conditions at the left and right sides extend to the far field, which makes it difficult to solve the ground motion waves.
LI Yanpeng 1, 2, LI Zhiyuan 3, HU Zhiqiang 1, 2, LIN Gao 1, 2
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International Journal for Numerical Methods in Engineering, Volume 124, Issue 15, Page 3387-3405, 15 August 2023., 2023 AbstractIn this article, we propose a new solution scheme for modeling elastoplastic problems with stress wave propagation in dissipative media. The scheme is founded on a generalized Hellinger–Reissner (HR) variational principle. The principle renders the discretized boundary‐value problem into an equivalent second‐order cone programming (SOCP ...
Liang Wang, Xue Zhang, Stefano Tinti
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International Journal for Numerical Methods in Engineering, Volume 124, Issue 9, Page 2068-2092, 15 May 2023., 2023 Abstract The contribution is concerned with a finite element formulation for the nonlinear analysis of heterogeneous solids in boundary representation. It results in an element with an arbitrary number of curved boundary edges. The curved edges can be parametrized by, for example, non‐uniform rational B‐splines (NURBS).
Rainer Reichel, Sven Klinkel
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Nonlinear vibration phenomena in hydrodynamically supported rotor systems
GAMM-Mitteilungen, Volume 46, Issue 1, March 2023., 2023 Abstract It is a well‐known fact, that hydrodynamically supported systems are prone to nonlinear vibrations. Their exact simulative prediction with respect to frequency and amplitude is complicated by the fact that different system properties interact.
Steffen Nitzschke +2 more
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Proceedings in Applied Mathematics and Mechanics, Volume 22, Issue 1, March 2023., 2023 Abstract In the analysis of textile‐reinforced shell structures full‐scale models are often impractical due to the complex nature of the meso‐structure. The structure is assumed to be globally periodic which allows the definition of a representative volume element (RVE).
Leonie Mester +2 more
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Scientific Reports, 2022 The transition from the geometry to the mesh can be rather difficult, manual and time-consuming, especially for the large scale complex structures.
Lei Zhou, Jianbo Li, Gao Lin
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