Integral-based non-local approach to ductile damage and mixed-mode fracture Научная публикация
| Журнал |
Engineering Fracture Mechanics
ISSN: 0013-7944 |
||||
|---|---|---|---|---|---|
| Вых. Данные | Год: 2023, Том: 292, Номер статьи : 109656, Страниц : 22 DOI: 10.1016/j.engfracmech.2023.109656 | ||||
| Ключевые слова | Ductile damage; Mixed-mode fracture; Integral-based non-locality; Stress-dependent delocalization | ||||
| Авторы |
|
||||
| Организации |
|
Реферат:
The present study focuses on the application of an integral-based approach for constructing nonlocal
ductile damage models. The incorporation of non-locality into the damage accumulation
rule enhances the modeling framework and yields simulation results that are physically
reasonable, avoiding the issue of pathological mesh-dependence. To achieve a precise depiction
of damage accumulation and fracture under mixed-mode I/II loading, novel delocalization
kernels are proposed. These kernels explicitly consider the heterogeneity of stresses and strains
in the fracture process zone; the new kernels are categorized into stress-based and strainbased
families. Furthermore, rigorous receiver-based normalization procedures and physically
meaningful source-based normalizations are explored for the developed kernels. The outcome
of this study is the modeling tool, suitable for end-to-end simulations of damage accumulation
and fracture. Using a well-calibrated material model, the practical applicability of the new
approach is demonstrated by performing finite element analysis on fracture tests conducted on
compact tension–shear specimens. In contrast to the conventional delocalization kernels, the
newly introduced families of kernels offer an additional fitting parameter, valuable in accurately
describing the structural behavior under mixed-mode loading conditions. In particular, the
proposed approach enables control over the shape of the predicted 𝐾𝐼𝑐–𝐾𝐼𝐼𝑐 diagram.
Библиографическая ссылка:
A. V. Shutov
, V. S. Klyuchantsev
Integral-based non-local approach to ductile damage and mixed-mode fracture
Engineering Fracture Mechanics. 2023. V.292. 109656 :1-22. DOI: 10.1016/j.engfracmech.2023.109656 WOS Scopus РИНЦ OpenAlex
Integral-based non-local approach to ductile damage and mixed-mode fracture
Engineering Fracture Mechanics. 2023. V.292. 109656 :1-22. DOI: 10.1016/j.engfracmech.2023.109656 WOS Scopus РИНЦ OpenAlex
Даты:
| Поступила в редакцию: | 2 июл. 2023 г. |
| Принята к публикации: | 27 сент. 2023 г. |
| Опубликована online: | 4 окт. 2023 г. |
Идентификаторы БД:
| Web of science: | WOS:001096136300001 |
| Scopus: | 2-s2.0-85173319801 |
| РИНЦ: | 63630952 |
| OpenAlex: | W4387335185 |