Khayyer, Abbas and Shimizu, Yuma and Lee, Chun Hean and Gil, Antonio and Gotoh, Hitoshi and Bonet, Javier (2024) An improved updated Lagrangian SPH method for structural modelling. Computational Particle Mechanics, 11. pp. 1055-1086. ISSN 2196-4378
AI Summary:
This paper presents a set of novel refined schemes to enhance the accuracy and stability of the updated Lagrangian SPH ULSPH for structural modelling.AI Topics:
This paper presents a set of novel refined schemes to enhance the accuracy and stability of the updated Lagrangian SPH (ULSPH) for structural modelling. The original ULSPH structure model was first proposed by Gray et al. (Comput Methods Appl Mech Eng 190:6641–6662, 2001) and has been utilised for a wide range of structural analyses including metal, soil, rubber, ice, etc., although the model often faces several drawbacks including unphysical numerical damping, high-frequency noise in reproduced stress fields, presence of several artificial terms requiring ad hoc tunings and numerical instability in the presence of tensile stresses. In these regards, this study presents a set of enhanced schemes corresponding to (1) consistency correction on discretisation schemes for differential operators, (2) a numerical diffusive term incorporated in the continuity or the density rate equation, (3) tuning-free stabilising term based on Riemann solution and (4) careful control/switch of stress divergence differential operator model under tensile stresses. Qualitative/quantitative validations are conducted through several well-known benchmark tests.
Khayyer, Abbas
Author
Khayyer, Abbas and Lee, Chun Hean (2024) Discussion on “comparative study on volume conservation among various SPH models for flows of different levels of violence, coastal engineering, volume 191, August 2024, 104 521” by Wang et al. Coastal Engineering, 192: 104565. ISSN 0378-3839
Khayyer, Abbas and Shimizu, Yuma and Lee, Chun Hean and Gil, Antonio and Gotoh, Hitoshi and Bonet, Javier (2024) An improved updated Lagrangian SPH method for structural modelling. Computational Particle Mechanics, 11. pp. 1055-1086. ISSN 2196-4378
See full publications listShimizu, Yuma
Author
Khayyer, Abbas and Shimizu, Yuma and Lee, Chun Hean and Gil, Antonio and Gotoh, Hitoshi and Bonet, Javier (2024) An improved updated Lagrangian SPH method for structural modelling. Computational Particle Mechanics, 11. pp. 1055-1086. ISSN 2196-4378
See full publications listLee, Chun Hean
Author
Di Giusto, Thomas B.J. and Lee, Chun Hean and Gil, Antonio J. and Bonet, Javier and Wood, Clare and Giacomini, Matteo (2024) A first-order hyperbolic Arbitrary Lagrangian Eulerian conservation formulation for nonlinear solid dynamics in irreversible processes. Journal of Computational Physics, 518: 113322. ISSN 0021-9991
Khayyer, Abbas and Lee, Chun Hean (2024) Discussion on “comparative study on volume conservation among various SPH models for flows of different levels of violence, coastal engineering, volume 191, August 2024, 104 521” by Wang et al. Coastal Engineering, 192: 104565. ISSN 0378-3839
Di Giusto, Thomas B.J. and Lee, Chun Hean and Gil, A.J. and Bonet, Javier and Giacomini, Matteo (2024) A first-order hyperbolic arbitrary Lagrangian Eulerian conservation formulation for non-linear solid dynamics. International Journal for Numerical Methods in Engineering, 125 (15): e7467. ISSN 0029-5981
See full publications listGil, Antonio
Author
Khayyer, Abbas and Shimizu, Yuma and Lee, Chun Hean and Gil, Antonio and Gotoh, Hitoshi and Bonet, Javier (2024) An improved updated Lagrangian SPH method for structural modelling. Computational Particle Mechanics, 11. pp. 1055-1086. ISSN 2196-4378
See full publications listGotoh, Hitoshi
Author
Khayyer, Abbas and Shimizu, Yuma and Lee, Chun Hean and Gil, Antonio and Gotoh, Hitoshi and Bonet, Javier (2024) An improved updated Lagrangian SPH method for structural modelling. Computational Particle Mechanics, 11. pp. 1055-1086. ISSN 2196-4378
See full publications listBonet, Javier
Author
Di Giusto, Thomas B.J. and Lee, Chun Hean and Gil, Antonio J. and Bonet, Javier and Wood, Clare and Giacomini, Matteo (2024) A first-order hyperbolic Arbitrary Lagrangian Eulerian conservation formulation for nonlinear solid dynamics in irreversible processes. Journal of Computational Physics, 518: 113322. ISSN 0021-9991
Di Giusto, Thomas B.J. and Lee, Chun Hean and Gil, A.J. and Bonet, Javier and Giacomini, Matteo (2024) A first-order hyperbolic arbitrary Lagrangian Eulerian conservation formulation for non-linear solid dynamics. International Journal for Numerical Methods in Engineering, 125 (15): e7467. ISSN 0029-5981
Lee, Chun Hean and Gil, Antonio J. and Refachinho de Campos, Paulo R. and Bonet, Javier and Jaugielavicius, Tadas and Joshi, Shreyas and Wood, Clare (2024) A novel Arbitrary Lagrangian Eulerian Smooth Particle Hydrodynamics algorithm for nonlinear solid dynamics. Computer Methods in Applied Mechanics and Engineering, 427: 117055. ISSN 0045-7825
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