Results 181 to 190 of about 14,670,895 (289)
A Stable Formulation for Wave‐Induced Fracture in Peridynamics
ABSTRACT The bond‐associated quadrature point formulation is a very accurate peridynamic formulation for elasticity, but modeling fracture by the traditional deletion of bonds can trigger severe numerical instabilities. These instabilities are most pronounced for wave‐induced fracture, where stress waves continue to propagate through already damaged ...
Kai Partmann +3 more
wiley +1 more source
Iterative spectral methods for Hamilton-Jacobi-Bellman quasi-variational inequality in finance. [PDF]
Lei M, Lu Z.
europepmc +1 more source
Simultaneous Optimization of Design Layout and Material Properties in Reinforced Concrete Structures
ABSTRACT The sustainable transformation of the building sector requires the design of mechanically efficient civil engineering structures, the consideration of material properties in the design layout plays an important role in this context. Steel‐reinforced concrete is an anisotropic bi‐material composite, which represents one of the most popular ...
Daniela Masarczyk +2 more
wiley +1 more source
ABSTRACT Ice shelves are floating seaward extensions of glaciers that form where land‐based ice flows into the ocean. Recent observations suggest that their mechanical behavior is suitably described by a viscoelastic Maxwell model, as this framework captures both the instantaneous elastic response and the time‐dependent viscous flow of ice.
Marvin Koßler +4 more
wiley +1 more source
The finite element neural network method to simulate two dimensional partial differential equations and perform parameter identification. [PDF]
Abda M +7 more
europepmc +1 more source
ABSTRACT We present a numerical study of a weakly symmetric dual‐mixed finite element method for the Stokes source problem, in which the Cauchy stress is the primary unknown and its symmetry is imposed weakly through a vorticity Lagrange multiplier. Viewing the scheme as the incompressible limit of the reduced‐symmetry mixed elasticity framework, we ...
Fleurianne Bertrand, Tugay Dağlı
wiley +1 more source
ABSTRACT Mathematical models describing physical or biological processes are often involved and need a lot of parameters whose values may be unknown and hence must be estimated. Some parameters may have a strong impact on the solution and are hence important to know in order to obtain accurate results, whereas other parameters may have little impact on
Henry Jäger, Bernd Simeon
wiley +1 more source
A quadratic-scaling algorithm with guaranteed convergence for quantum coupled-channel calculations. [PDF]
Jóźwiak HJ, Rahman MM, Tscherbul TV.
europepmc +1 more source
Probing and Graph Coloring Techniques for Trace Estimation in Lattice QCD
ABSTRACT The computation of Tr[D−1]$\mathrm{Tr}[D^{-1}]$, where D$D$ is the Wilson–Dirac matrix of Lattice QCD, is a fundamental and computationally demanding task with applications to disconnected hadronic correlation functions. Since D−1$D^{-1}$ is a dense matrix of prohibitive size, its trace cannot be computed exactly, and one must resort to ...
Mario Papace +5 more
wiley +1 more source
Convergence of the Immersed Interface Method in Linear Elasticity. [PDF]
Asghar S +3 more
europepmc +1 more source

