An analytical Lode angle dependent damage model for ductile porous materials

Abstract : We propose a statical limit analysis approach for ductile porous materials, based on a general three dimensional (3D) trial stress field. This approach delivers a new macroscopic criterion which explicitly accounts for stress Lode angle effects. After illustrating the yield surfaces, we provide the macroscopic plastic flow rule and void growth equations. Based on the above results, a full 3D constitutive damage law is formulated and numerically implemented with an isotropic hardening law. This allows to predict the macroscopic response of the voided material under arbitrary loadings. Finally, the influence of the stress Lode angle as well as that of the stress triaxiality are fully illustrated.
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01235702
Contributor : Marie-Christine Nodot <>
Submitted on : Monday, November 30, 2015 - 3:12:13 PM
Last modification on : Friday, October 4, 2019 - 1:33:47 AM

Identifiers

Citation

Long Cheng, Vincent Monchiet, Léo Morin, Géry de Saxcé, Djimedo Kondo. An analytical Lode angle dependent damage model for ductile porous materials. Engineering Fracture Mechanics, Elsevier, 2015, 149, pp.119-133. ⟨10.1016/j.engfracmech.2015.09.038⟩. ⟨hal-01235702⟩

Share

Metrics

Record views

246