Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1002/nme.7060
Volltext Shareable Link
Titel (primär) The extended peridynamic model for elasto-plastic and/or fracture problems
Autor Li, W.-J.; You, T. ORCID logo ; Ni, T.; Zhu, Q.-Z.; Poh, L.-H.
Quelle International Journal for Numerical Methods in Engineering
Erscheinungsjahr 2022
Department ENVINF
Band/Volume 123
Heft 21
Seite von 5201
Seite bis 5229
Sprache englisch
Topic T8 Georesources
Keywords Extended peridynamic model (XPDM); crack propagation; failure criteria; elasto-plastic fracture
Abstract The strain-based implementation method for the extended peridynamic model (XPDM) resolves the limitation of standard models where only a fixed Poisson's ratio can be achieved. In this contribution, the XPDM formulation is extended to include bond breakage and/or plasticity mechanisms. The elasto-plastic and bond breakage algorithms are elaborated. To capture the fracture process, a shear mechanism is now incorporated to the bond breakage response, in addition to the standard stretching failure mode. It is shown that the shear mechanism is required to accurately reproduce mixed mode fracture behavior observed experimentally. To demonstrate the predictive behavior of the strain-based XPDM, a wide range of quasi-static and dynamic loading conditions, for both brittle and elasto-plastic materials, is considered against experimental results or practical engineering scenarios.
dauerhafte UFZ-Verlinkung
Li, W.-J., You, T., Ni, T., Zhu, Q.-Z., Poh, L.-H. (2022):
The extended peridynamic model for elasto-plastic and/or fracture problems
Int. J. Numer. Methods Eng. 123 (21), 5201 - 5229 10.1002/nme.7060