Skip to Main content Skip to Navigation
Journal articles

Anisotropic elastoplastic phase field fracture modeling of 3D printed materials

Abstract : A phase field model for anisotropic, elastoplastic fracture model in layered structures obtained by 3D printing processes is proposed. An extension of anisotropic phase field to elastoplasticity model is developed. The model is able to describe a transition from quasi-brittle to elastoplastic fracture behaviors depending on the angle of layers in the microstructure with respect to the external loading. Such feature is of special interest to describe the anisotropic fracture behavior in layered 3D printed materials. The present model introduces two phase field variables, one bulk fracture damage and one micro interfacial damage variables, describing two different micro damage mechanisms. Finally, we have proposed an original methodology to identify the macroscopic strain density as a function of the micro interfacial damage variable using numerical homogenization on Representative Volume Elements. Numerical investigations show that the present model is convergent with respect to mesh refinement, and allows to describe complex crack initiation and propagation in layered elastoplastic structures. An experimental comparison is provided to validate the use of such model for 3D printed polymer materials.
Document type :
Journal articles
Complete list of metadata

https://hal-upec-upem.archives-ouvertes.fr/hal-03322435
Contributor : J. Yvonnet Connect in order to contact the contributor
Submitted on : Thursday, August 19, 2021 - 10:17:46 AM
Last modification on : Saturday, October 16, 2021 - 11:22:19 AM

File

[94 PP].pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-03322435, version 1

Citation

Pengfei Li, Julien Yvonnet, Christelle Combescure, Hamid Makich, Mohammed Nouari. Anisotropic elastoplastic phase field fracture modeling of 3D printed materials. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2021, 386, pp.114086. ⟨hal-03322435⟩

Share

Metrics

Record views

109

Files downloads

45