Results 51 to 60 of about 2,535 (228)

Updated Lagrangian Taylor-SPH method for elastic dynamic problems

open access: yesApplied and Computational Mechanics, 2022
This paper presents a discussion on the properties of the collocation meshfree method, the Updated Lagrangian Taylor-SPH (UL-TSPH), for dynamic problems in solid mechanics.
Karim Serroukh H., Mabssout M.
doaj   +1 more source

Space‐Time FEM Solution of Dynamic Contact Problem With Discontinuous Velocity for Multiple Impact of Deformed Bar Using PDAS Method

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 7, Page 5897-5912, 15 May 2026.
ABSTRACT A class of one‐dimensional impact and dynamic contact problems taking into account non‐smooth velocities is studied. The new space‐time finite element approximation of dynamic variational inequalities is suggested. The non‐smooth solution for the impact of an obstacle by an elastic bar and its energy conservation under persistency conditions ...
Victor A. Kovtunenko   +2 more
wiley   +1 more source

Relative entropy methods for hyperbolic and diffusive limits [PDF]

open access: yes, 2012
We review the relative entropy method in the context of hyperbolic and diffusive relaxation limits of entropy solutions for various hyperbolic models.
Tzavaras, Athanasios E.   +1 more
core  

Three dimensional finite-differential simulation of the wave field taking sphericity of the Earth into account

open access: yesГеофизический журнал, 2020
Three dimensional modeling of the wave field makes possible to obtain a concept on distribution of seismic waves in geological medium with different complexity of its structure.
A.O. Verpakhovskaya, V.N. Pilipenko
doaj   +1 more source

Efficient Deconvolution in Populational Inverse Problems

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 9, 15 May 2026.
ABSTRACT This work is focused on the inversion task of inferring the distribution over parameters of interest, leading to multiple sets of observations. The potential to solve such distributional inversion problems is driven by the increasing availability of data, but a major roadblock is blind deconvolution, arising when the observational noise ...
Arnaud Vadeboncoeur   +2 more
wiley   +1 more source

An energy-preserving Discrete Element Method for elastodynamics [PDF]

open access: yes, 2012
We develop a Discrete Element Method (DEM) for elastodynamics using polyhedral elements. We show that for a given choice of forces and torques, we recover the equations of linear elastodynamics in small deformations.
Monasse, Laurent   +3 more
core   +1 more source

Elastic metamaterials and dynamic homogenization: a review

open access: yesInternational Journal of Smart and Nano Materials, 2015
In this paper, we review the recent advances which have taken place in the understanding and applications of acoustic/elastic metamaterials. Metamaterials are artificially created composite materials which exhibit unusual properties that are not found in
Ankit Srivastava
doaj   +1 more source

Near‐Source Ground Motion From Normal Faults: Insights From the Physics‐Based Numerical Simulations of the 1980 Irpinia Earthquake, Southern Italy

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
In this paper, the physics‐based numerical simulation of the strongest instrumental earthquake in the recent seismic history of Italy, i.e., the Nov 23, 1980 Irpinia earthquake in Southern Italy, with magnitude MW 6.8, is presented and discussed. A 3D spectral element model covering an extended region (147 × 110 km2) was constructed, with a frequency ...
Roberto Paolucci   +5 more
wiley   +1 more source

Index reduction for operator differential-algebraic equations in elastodynamics [PDF]

open access: yes, 2013
In space semi-discretized equations of elastodynamics with weakly enforced Dirichlet boundary conditions lead to differential algebraic equations (DAE) of index 3.
Altmann, Robert
core   +1 more source

Transient wave propagation phenomena at visco-elastic half-spaces under distributed surface loadings

open access: yesLatin American Journal of Solids and Structures
This article analyzes the transient wave propagation phenomena that take place at 2D viscoelastic half-spaces subjected to spatially distributed surface loadings and to distinct temporal excitations.
E Mesquita   +3 more
doaj   +1 more source

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