Results 61 to 70 of about 3,049 (178)

Poromechanics of Particle Remobilization and Interface Stiffness of Dynamically Stressed Fractured Rock

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract A range of natural (teleseismic waves) and industrial sources (hydraulic stimulation) of stress perturbations in the subsurface can alter the poromechanical response of fractured rock which may reactivate faults or otherwise breach reservoir seals.
Clay E. Wood   +4 more
wiley   +1 more source

Non-Intrusive In-Plane-Out-of-Plane Separated Representation in 3D Parametric Elastodynamics

open access: yesComputation, 2020
Mesh-based solution of 3D models defined in plate or shell domains remains a challenging issue nowadays due to the fact that the needed meshes generally involve too many degrees of freedom.
Claudia Germoso   +3 more
doaj   +1 more source

Wave Propagation in 3‐D Poroelastic Media Accounting for Both Mesoscopic and Global Flow Effects

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Biot's theory of poroelasticity is widely recognized as a fundamental framework for describing wave‐induced fluid flow in mesoscopic heterogeneous porous media. However, dynamic numerical modeling of velocity dispersion and attenuation in heterogeneous porous media remains challenging due to (a) the stiffness of Biot's equations and (b) the ...
Zhiyu Hou   +2 more
wiley   +1 more source

In-Plane Vibrations of Elastic Lattice Plates and Their Continuous Approximations

open access: yesMathematics
This paper presents an analytical study on the in-plane vibrations of a rectangular elastic lattice plate. The plane lattice is modelled considering central and angular interactions.
Noël Challamel   +3 more
doaj   +1 more source

Unified Ray and Amplitude Tracing ODE Systems for the Eikonal and Transport Equations via Contact Geometry

open access: yesStudies in Applied Mathematics, Volume 157, Issue 3, September 2026.
ABSTRACT High‐frequency seismic wave descriptions are essential for fundamental geophysical applications, including earthquake hypocenter location, magnitude estimation, and traveltime–amplitude tomography. These descriptions rely on two coupled PDEs: the eikonal equation (governing traveltimes) and the transport equation (governing amplitudes ...
Ahmet Beyaz   +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

Mathematical analogies in physics. Thin-layer wave theory

open access: yesAnnals of Geophysics, 2014
Field theory applies to elastodynamics, electromagnetism, quantum mechanics, gravitation and other similar fields of physics, where the basic equations describing the phenomenon are based on constitutive relations and balance equations.
José M. Carcione   +2 more
doaj   +1 more source

On the Extension of Mesh‐Distortion‐Insensitive Petrov‐Galerkin Finite Element Formulations to Linear Elastodynamics

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 14, 30 July 2026.
ABSTRACT Numerous mesh‐distortion‐insensitive Petrov‐Galerkin finite element formulations have been developed for the simulation of elastostatic problems. This contribution presents initial results on how these formulations can be extended to linear elastodynamics. In this context, three different approaches are examined, building upon an established 8‐
Felix Zähringer, Peter Betsch
wiley   +1 more source

The coupled dual boundary element-scaled boundary finite element method for efficient fracture mechanics [PDF]

open access: yes, 2012
A novel numerical method is presented for applications to general fracture mechanics problems in engineering. The coupled dual boundary element-scaled boundary finite element method (DBE-SBFEM) incorporates the numerical accuracy of the SBFEM and the ...
BIRD, GARETH,EDWARD
core  

A Simplified Flexible Multibody Dynamics for a Main Landing Gear with Flexible Leaf Spring

open access: yesShock and Vibration, 2014
The dynamics of multibody systems with deformable components has been a subject of interest in many different fields such as machine design and aerospace.
Zhi-Peng Xue   +3 more
doaj   +1 more source

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