Results 81 to 90 of about 593,106 (293)

NPS Shock Team, Shock & Vibration Computational Laboratory [PDF]

open access: yes, 2009
Objective: Accurately predict the Shock Response of a surface ship in an Underwater Explosion EventShock & Vibration Computation ...
Shin, Young S.   +2 more
core   +1 more source

A novel multi-dimensional Eulerian approach to computational solid dynamics [PDF]

open access: yes, 2009
Many problems in solid dynamics involve moving boundaries, finite elastoplastic deformations, and strong non-linear waves. Continuum modelling of such events is difficult on account of these characteristics, and there exist a number of inadequacies in
Barton, Philip Trevor
core   +2 more sources

Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns

open access: yesArthritis Care &Research, EarlyView.
Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki   +6 more
wiley   +1 more source

Reactive burn models and ignition & growth concept

open access: yesEPJ Web of Conferences, 2011
Plastic-bonded explosives are heterogeneous materials. Experimentally, shock initiation is sensitive to small amounts of porosity, due to the formation of hot spots (small localized regions of high temperature).
Shaw M.S., Menikoff R.
doaj   +1 more source

Capturing Shock Waves by Relaxation Neural Networks

open access: yes
In this paper, we put forward a neural network framework to solve the nonlinear hyperbolic systems. This framework, named relaxation neural networks(RelaxNN), is a simple and scalable extension of physics-informed neural networks(PINN). It is shown later that a typical PINN framework struggles to handle shock waves that arise in hyperbolic systems ...
Nan Zhou, Zheng Ma
openaire   +3 more sources

Shock capturing [PDF]

open access: yes, 1985
Recent developments which have improved the understanding of how finite difference methods resolve discontinuous solutions to hyperbolic partial differential equations are discussed.
Davis, S. F.
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

A Study of the Maximum Momentum Flux in the Solitary Wave Run-Up Zone over Back-Reef Slopes Based on a Boussinesq Model

open access: yesJournal of Marine Science and Engineering, 2019
This study utilized a shock-capturing Boussinesq model FUNWAVE-TVD to investigate the maximum momentum flux in the solitary wave run-up zone over back-reef slopes.
Weijie Liu, Keqi Shao, Yue Ning
doaj   +1 more source

Shock capturing by the spectral viscosity method [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 1990
This paper is concerned with spectral methods for solving nonlinear one- dimensional conservation laws. An example is used to show that when shock discontinuities appear, the standard spectral approximations cannot converge to the solution satisfying the entropy condition because of the unstable Gibbs oscillations.
openaire   +2 more sources

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