The extended peridynamic model for elastoplastic and/or fracture problems
Research output: Contribution to journal › Article › Research › peer-review
Standard
In: International journal for numerical methods in engineering, Vol. 123.2022, No. 21, 15.11.2022, p. 5201-5229.
Research output: Contribution to journal › Article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex - Download
}
RIS (suitable for import to EndNote) - Download
TY - JOUR
T1 - The extended peridynamic model for elastoplastic and/or fracture problems
AU - Li, Wei Jian
AU - You, Tao
AU - Ni, Tao
AU - Zhu, Qizhi
AU - Hien Poh, Leong
N1 - Publisher Copyright: © 2022 John Wiley & Sons, Ltd.
PY - 2022/11/15
Y1 - 2022/11/15
N2 - 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 elastoplastic 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 ability 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.
AB - 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 elastoplastic 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 ability 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.
KW - crack propagation
KW - elasto-plastic fracture
KW - extended peridynamic model (XPDM)
KW - failure criteria
UR - http://www.scopus.com/inward/record.url?scp=85139378489&partnerID=8YFLogxK
U2 - 10.1002/nme.7060
DO - 10.1002/nme.7060
M3 - Article
AN - SCOPUS:85139378489
VL - 123.2022
SP - 5201
EP - 5229
JO - International journal for numerical methods in engineering
JF - International journal for numerical methods in engineering
SN - 0029-5981
IS - 21
ER -