Numerical convergence in simulations of multiaxial ratcheting with directional distortional hardening

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00484176" target="_blank" >RIV/61388998:_____/17:00484176 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ijsolstr.2017.07.032" target="_blank" >http://dx.doi.org/10.1016/j.ijsolstr.2017.07.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijsolstr.2017.07.032" target="_blank" >10.1016/j.ijsolstr.2017.07.032</a>

Result language
angličtina
Original language name
Numerical convergence in simulations of multiaxial ratcheting with directional distortional hardening
Original language description
In this work, we investigate the numerical convergence of a set of plasticity models with different kine- matic and directional distortional hardening rules under cyclic plastic loading. In particular, we revisit the results presented in Feigenbaum et al. (2012) in order to more robustly check for convergence during the numerical integration procedure, and show that the results presented in the previous work do not con- verge. We investigate the role of the step-size and numerical scheme on the convergence of these models when predicting ratcheting. By reducing step-sizes and using a forward Euler scheme during numerical integration, converged solutions are obtained. The new converged results lead to new conclusions. Re- sults still suggest that directional distortional hardening can improve ratcheting predictions, however the addition of directional distortional hardening yields less improvements compared to kinematic hardening alone than previously thought. This new conclusion, strongly suggests the need for additional modeling developments in order accurately predict ratcheting strains under a wide variety of cyclic plastic loadings.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)