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The boundary element method of peridynamics [PDF]
International Journal for Numerical Methods in Engineering, 2021 AbstractThe peridynamic theory brings advantages in dealing with discontinuities, dynamic loading, and nonlocality. The integro‐differential formulation of peridynamics poses challenges to numerical solutions of complicated and practical problems. Some important issues attract much attention, such as the computation of infinite domains, the treatment ...
Xue Liang +3 more
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Experimental Analysis and Simulation of a Porous Absorbing Layer for Noise Barriers
Applied Sciences, 2023 Noise barriers are common noise mitigation measures usually implemented near roads or railways, with proven efficiency. This work presents a study of a porous concrete material incorporating expanded clay as aggregate, to be used on the sound-absorption ...
Laura Sousa +6 more
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Mortar Boundary Elements [PDF]
SIAM Journal on Numerical Analysis, 2010 We establish a mortar boundary element scheme for hypersingular boundary integral equations representing elliptic boundary value problems in three dimensions. We prove almost quasi-optimal convergence of the scheme in broken Sobolev norms of order 1/2.
Martin Healey, Norbert Heuer
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Applied Mechanics, 2021 The load-penetration curve in elastic nanoindentation of an elastic micropolar flat by a diamond spherical punch is analyzed. The presented results are obtained by a specifically developed numerical tool based on a judicious combination of the ...
Gaël Pierson +3 more
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HIERARCHICAL BOUNDARY ELEMENTS [PDF]
Computers & Structures, 1985 In this paper we show the possibility of applying adaptive procedures as an alternative to the well-known philosophy of standard Boundary Elements. The three characteristic steps of adaptive procedures, i.e. hierarchical shape functions families, indicator criteria, and a posteriori estimation, can be defined in order to govern an automatic refinement ...
Alarcón Álvarez, Enrique +2 more
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An Optimization Strategy to Position CHIEF Points in Boundary-Element Acoustic Problems
Applied Sciences, 2023 The use of boundary elements in the analysis of exterior acoustic problems poses challenges at specific frequencies, since fictitious eigenfrequencies may arise at the internal resonances of cavities, leading to inaccurate results or even unstable ...
Kleber de Almeida Gonçalves +4 more
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Results in Engineering, 2022 Sustainable development encourages the construction of buildings based from local raw materials because they are ecological, renewable, available, low energy consumption, less costly, low pollution, and therefore without risk to human health.
E. Kowa Ketchadji +5 more
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Experimental Study of Supersonic Boundary Layer Transition Induced by Cylindrical Roughness Elements
Shanghai Jiaotong Daxue xuebao, 2021 The boundary layer transition process induced by different heights and quantities of the cylindrical roughness elements at Mach 3.0 is investigated experimentally by using the nano-tracer-based planar laser scattering (NPLS) technique. Fine structures of
JIN Long, YI Shihe, HUO Junjie, LIU Xiaolin, NIU Haibo
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A modified scaled boundary method to analyze structural elements [PDF]
Numerical Methods in Civil Engineering, 2023 It is possible to resolve numerical issues by utilizing a method known as the conventional scaled boundary finite element method (also known as SBFEM), which is a dimension reduction technique.
Ali Zare +3 more
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Coarsening of Boundary-element Spaces [PDF]
Computing, 2006 In this paper, we will present composite boundary elements (CBE) for classical Fredholm boundary integral equations. These new boundary elements allow the low-dimensional discretisation of boundary integral equations where the minimal number of degrees of freedom is independent of the, possibly, huge number of charts which are necessary to describe a ...
Wolfgang Hackbusch +2 more
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