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A multi-physics methodology for the simulation of reactive flow and elastoplastic structural response

L. Michael, N. Nikiforakis
2018 Journal of Computational Physics  
The components for reactive flow and elastoplastic solid modelling are validated separately before presenting validation for the full, coupled systems.  ...  Several types of explosives (C4, Deetasheet, nitromethane, gaseous fuel) in gaseous, liquid and solid state are considered.  ...  Acknowledgements This work was supported by Jaguar Land Rover and the UK-EPSRC grant EP/K014188/1 as part of the jointly funded Programme for Simulation Innovation.  ... 
doi:10.1016/j.jcp.2018.03.037 fatcat:zdtmsa7wtvat3jwcuz5uxclpi4

A Diffuse Interface Model of Reactive-fluids and Solid-dynamics [article]

Tim Wallis, Philip T. Barton, Nikolaos Nikiforakis
2021 arXiv   pre-print
This article presents a multi-physics methodology for the numerical simulation of physical systems that involve the non-linear interaction of multi-phase reactive fluids and elastoplastic solids, inducing  ...  Results indicate very good agreement with experiment and an improvement of numerical performance compared to certain existing Eulerian methods, without loss of conservation.  ...  Additionally, Tim Wallis was funded by a grant from the UK Engineering and Physical Sciences Research Council (EPSRC) EP/L015552/1 for the Centre for Doctoral Training (CDT) in Computational Methods for  ... 
arXiv:2009.14555v2 fatcat:iaxxoibig5feflvusudn3ha53e

A Second-Order Godunov Method for Wave Problems in Coupled Solid–Water–Gas Systems

H.S Tang, F Sotiropoulos
1999 Journal of Computational Physics  
Calculations are carried out for Riemann problems, wave propagation and reflection in a water-rock-air system, and spallation and cavitation in an explosion-steel-water-gas system.  ...  We present a second-order Godunov method for computing unsteady, onedimensional wave problems with fracture and cavitation in coupled solid-watergas systems.  ...  Beijing University of Aeronautics and Astronautics, Beijing.  ... 
doi:10.1006/jcph.1999.6220 fatcat:qm6flbqwajaxpnbqieznybgriy

Adaptive Physically Based Models in Computer Graphics

P.-L. Manteaux, C. Wojtan, R. Narain, S. Redon, F. Faure, M.-P. Cani
2016 Computer graphics forum (Print)  
One of the major challenges in physically-based modeling is making simulations efficient. Adaptive models provide an essential solution to these efficiency goals.  ...  Models are classified according to the strategy they use for adaptation, from time-stepping and freezing techniques to geometric adaptivity in the form of structured grids, meshes, and particles.  ...  This idea of adaptively switching between Eulerian simulations and SPH is still an active research topic.  ... 
doi:10.1111/cgf.12941 fatcat:vxw2g7hsffawvo7245vi6amipy

Physically Based Deformable Models in Computer Graphics

Andrew Nealen, Matthias Müller, Richard Keiser, Eddy Boxerman, Mark Carlson
2006 Computer graphics forum (Print)  
For completeness, we also make a connection to the simulation of other continua, such as fluids, gases and melting objects.  ...  Finally, we discuss areas of application, such as elastoplastic deformation and fracture, cloth and hair animation, virtual surgery simulation, interactive entertainment and fluid/smoke animation, and  ...  Acknowledgements We would like to thank the following people for their contributions, suggestions and general help in shaping and improving this paper: Bart Adams, Adam Bargteil, Robert Bridson, Min Gyu  ... 
doi:10.1111/j.1467-8659.2006.01000.x fatcat:3yjnzqongrfvtmwlaxbazpmwb4

Physically Based Deformable Models in Computer Graphics [article]

Andrew Nealen, Matthias Müller, Richard Keiser, Eddy Boxerman, Mark Carlson
2005 Eurographics State of the Art Reports  
For completeness, we also make a connection to the simulation of other continua, such as fluids, gases and melting objects.  ...  Finally, we discuss areas of application, such as elastoplastic deformation and fracture, cloth and hair animation, virtual surgery simulation, interactive entertainment and fluid/smoke animation, and  ...  We would like to thank the following people for their contributions, suggestions and general help in shaping and improving this paper: Bart Adams, Adam Bargteil, Robert Bridson, Min Gyu Choi, Nico Galoppo  ... 
doi:10.2312/egst.20051045 fatcat:sposdsae2bgdvclnzhwxbue73y

A Flux-enriched Godunov Method for Multi-material Problems with Interface Slide and Void Opening [article]

Tim Wallis, Philip T. Barton, Nikolaos Nikiforakis
2020 arXiv   pre-print
This work outlines a new three-dimensional diffuse interface finite volume method for the simulation of multiple solid and fluid components featuring large deformations, sliding and void opening.  ...  The method is shown to give excellent agreement with both experiment and existing Eulerian interface tracking algorithms that employ sharp interface methods.  ...  Tim Wallis acknowledges additional support by a grant from the UK Engineering and Physical Sciences Research Council (EPSRC) EP/L015552/1 for the Centre for Doctoral Training (CDT) in Computational Methods  ... 
arXiv:2011.05569v1 fatcat:aqm7hfrw7fen7fvr7oulznbtyi

Scientific Program

2014 Procedia IUTAM  
multi-step method based on extended precise integration method MS05-007 Shujun Tan * , Zhigang Wu, Wanxie Zhong, China Multi-material eulerian method and its large-scale computation for 3D explosion and  ...  and modeling of HMX granular explosives subjected to drop-weight impact SM07-008 A.  ...  Thickness-shear vibrations of rectangular plates with free edges by the extended kantorovich method FS07-019 Ji  ... 
doi:10.1016/j.piutam.2014.01.011 fatcat:osy4egnuufdophopfpj75e24jm

Numerical Simulation of Fluid-Structure Interaction during the Expansion Phase in Sodium Cooled Fast Reactors

Maximilian Hartig
2019
They used the finite element code LS-DYNA to simulate both structure and explosive charge with an ALE formulation for the gaseous domain.  ...  They used a loosely coupled combination of Lagrangian finite elements for the structural dynamics and Eulerian finite volume approach for the fluid side.  ... 
doi:10.5445/ir/1000099792 fatcat:pqqevi4qcfb2hijtwume3vjb34

Numerical study of detonation in solid explosives under hydrodynamic and elastic-plastic confinement

Eleftherios Ioannou, ${Dspace.Name}, ${Dspace.Name}, Nikolaos Nikiforakis
2019
It is coupled with appropriate inert material models for fluids and solids to accurately capture their interaction with the detonation wave.  ...  First, we consider the response of a detonator in isolation, guided by an underwater explosion test.  ...  An Eulerian algorithm for coupled simulations of elastoplastic-solids and condensed-phase Michael and N. Nikiforakis."  ... 
doi:10.17863/cam.43746 fatcat:5fivne3xkzh77hvrlk47ngvq4m

Ale simulation of chip formation in orthogonal metal cutting process

Mohammad R. Movahhedy
2000
Furthermore, General guidelines for designing a mesh motion strategy are presented, an algorithm for mesh sliding on free boundaries is introduced, and transfinite and isoparametric mapping techniques  ...  In contrast, the adaptivity of the mesh in an ALE analysis provides the possibility of combining the strengths of both Lagrangian and Eulerian methods in a single analysis.  ...  In solid mechanics applications, the velocity convection term is a feature of an Eulerian formulation in which the mesh is spatially fixed.  ... 
doi:10.14288/1.0089713 fatcat:xlns4nhmqfazxbpcjtbp5jxeii

APM 2016. Book of Abstracts [article]

"Advanced Problems In Mechanics" (APM 2016), International Conference (44; 2016; St. Petersburg), Russian Academy Of Sciences. Institute For Problems In Mechanical Engineering, University, Peter The Great St. Petersburg Polytechnic
2016
The authors kindly acknowledge funding from the project TAMER, Trans-Atlantic Micromechanics Evolving Research "Materials containing inhomogeneities of diverse physical properties, shapes and orientations  ...  The authors acknowledge financial support of the Russian Science Foundation (grant 15-19-10056 The authors acknowledge the support within the framework of IRSES Project TAMER (PIRSES-GA-2013-610547).  ...  This approach allows to avoid restraints of the Lagrangian and Eulerian descriptions used separately for a two-phase fluid-solid continuum.  ... 
doi:10.18720/spbpu/2/k16-40 fatcat:yegzycnwbrco7dwsdnsjxvwbc4

APM 2017. Book of abstracts [article]

"Advanced Problems In Mechanics (APM 2017)", International Conference (45; 2017; St. Petersburg, Russia), Russian Academy Of Sciences. Institute For Problems In Mechanical Engineering, University, Peter The Great St. Petersburg Polytechnic
2017
The aim is to cast these ideas into an initial mathematical framework for describing a variety of coupled chemomechanical phenomena occurring in material engineering and earth systems, as well as in the  ...  The model takes into account diffusion and the stages of phase formation in the transition zone.  ...  Skripnyak for fruitful discussions and valuable suggestions. This work was supported partially by the Grant from the President of Russian Federation and Grant from the Foundation of D.I.  ... 
doi:10.18720/spbpu/2/k17-23 fatcat:us6nhplc3rbhrgowwocdqa2wrq

High speed forming 2004

Matthias Kleiner, Technische Universität Dortmund, Technische Universität Dortmund
2006
The failure modes for AA5754 and AA6111 in EMF are significantly different with the former showing significant thinning prior to fracture and evidence of what could be a combination of plastic collapse  ...  and ductile fracture, while the latter shows clear evidence of shear fracture.  ...  Algorithmic Implementation of the Coupled Simulations in SOFAR The idea behind the software environment SOFAR is to reduce the development time for finiteelement-based algorithms and simulation by object  ... 
doi:10.17877/de290r-12912 fatcat:y4niagoqazbovepixarytfphd4

Thermal effects on the dynamic damage and fracture of a dual phase automotive steel

Sarath Chandran, Wenqi Liu, Junhe Lian, Sebastian Münstermann, Patricia Verleysen
2019
plate impact, direct and flier plate drive high-explosive experiments, direct and flier plate drive laser experiments, and drop tower; small-scale integrated tests for validation of material constitutive  ...  The journal publishes experimental, theoretical, modeling and simulation, and interdisciplinary work focused both on advancement of new techniques and application of techniques to new materials and structures  ...  Bagusat, and F. Kölble for stimulating discussions. Furthermore, we thank BMVg and BAAINBw for funding and H. Sohn for his support.  ... 
doi:10.18154/rwth-2020-02900 fatcat:s462kpl6ujdpxmi4rqouc2c7ei
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