Asynchronous time integration while achieving zero interface energy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00580081" target="_blank" >RIV/61388998:_____/23:00580081 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.14311/APP.2023.42.0006" target="_blank" >http://dx.doi.org/10.14311/APP.2023.42.0006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2023.42.0006" target="_blank" >10.14311/APP.2023.42.0006</a>

Result language
angličtina
Original language name
Asynchronous time integration while achieving zero interface energy
Original language description
This contribution deals with an asynchronous direct time integration of the finite-element model. The proposed method is applied to the phenomenon of wave propagation through an elastic linear continuum. The numerical model is partitioned into individual subdomains using the domain decomposition method by means of localized Lagrange multipliers. For each subdomain, different time discretizations are used. No restrictions for relation between subdomain’s time steps are imposed. The coupling of the subdomains is forced by an acceleration continuity condition. Additionally, we use the a posteriori technique to also provide the displacement and velocity continuity at the interfaces, and hence we obtain exact continuity of all three kinematic fields. The proposed method is experimentally validated using the modified SHPB (split Hopkinson pressure bar) setup.
Czech name
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Czech description
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Project
<a href="/en/project/GF22-00863K" target="_blank" >GF22-00863K: Controllable metamaterials and smart structures: Nonlinear problems, modelling and experiments</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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