Gurson-based incremental damage in fatigue life estimate under proportional and non-proportional loading: Constant amplitude and low cycle regime applications

Neves, R.S.; Ferreira, Guilherme Viana; Malcher, L.

doi:10.1016/j.tafmec.2020.102678

Cited by 11 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the use of empirical criteria where the damage and plastic variables are coupled showed good agreement with experimental data on material failure under nonproportional loading paths [79,81,135,136]. Example of the applications of the Lemaitre-type and GTN-type models to non-proportional loading can be found in [137,138].  Calibration of the mechanical parameters.…”

Section: Models Comparison and Computational Aspectsmentioning

confidence: 74%

Ductile fracture modeling of metallic materials: a short review

Fincato

Tsutsumi

2021

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

Since the end of the last century a lot of research on ductile damaging and fracture process has been carried out. The interest and the attention on the topic are due to several aspects. The margin to reduce the costs of production or maintenance can be still improved by a better knowledge of the ductile failure, leading to the necessity to overcome traditional approaches. New materials or technologies introduced in the industrial market require new strategies and approaches to model the metal behavior. In particular, the increase of the computational power together with the use of finite elements (FE), extended finite elements (X-FE), discrete elements (DE) methods need the formulation of constitutive models capable of describing accurately the physical phenomenon of the damaging process. Therefore, the recent development of novel constitutive models and damage criteria. This work offers an overview on the current state of the art in non-linear deformation and damaging process reviewing the main constitutive models and their numerical applications.

show abstract

Section: Models Comparison and Computational Aspectsmentioning

confidence: 74%

Ductile fracture modeling of metallic materials: a short review

Fincato

Tsutsumi

2021

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

show abstract

“…The previous aspects impose some limitations to the model Several criteria were incorporated into new proposals, among the most significant one can mention: incorporation of triaxiality effects, the evolution of defects in ductile materials, porosity, and applications under cyclic conditions [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]. In general, the phenomenon of gradual defect growth is an important alternative to predict the life of structural components subjected to low-cycle fatigue.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of the ductile fracture for AA6101-T4 and AISI 4340 alloys using the Lemaitre and Gurson models

Delgado-Morales,

Malcher,

Alves de Souza

2023

Ingeniare. Rev. chil. ing.

View full text Add to dashboard Cite

This paper provides a numerical assessment of the ductile fracture of the AA6101 and AISI 4340 alloys using the Lemaitre and Gurson models.The simulations were carried out to verify the evolution of the accumulated plastic strain at fracture, assuming the high range of the triaxiality ratio, applying monotonic tensile loads on smooth and notched cylindrical specimens. The numerical strategy was structured for the Lemaitre and Gurson models, from establishing a non-linear system of equations using an implicit integration algorithm and solving the non-linear equation system using the Newton-Raphson method. When assessing the numerical and experimental results, it was observed that the cumulative plastic strain at the fracture decreases with the increasing levels of the triaxiality ratio for both alloys and models. On the one hand, the Lemaitre model was more optimistic than the experimental results. On the other hand, Gurson's model proved to be more conservative in its prediction of ductile fracture. Regarding determining the fracture onset, in general, both models showed good predictive capacity. However, the numerical results for the aluminum alloy presented more in agreement with experimental data than for the AISI 4340 alloy. In the end, assuming the determination of the level of displacement at fracture, the Gurson's model has the best performance. In this sense, for a high level of triaxiality ratio, the Gurson porous material can be recommended to describe the mechanical behavior of the material at fracture.

show abstract

Experiment and prediction of the strain-range dependent ultra-low-cycle fatigue based on micromechanical cyclic void growth model

Xie,

Wang

2024

Construction and Building Materials

View full text Add to dashboard Cite

Gurson-based incremental damage in fatigue life estimate under proportional and non-proportional loading: Constant amplitude and low cycle regime applications

Cited by 11 publications

References 44 publications

Ductile fracture modeling of metallic materials: a short review

Ductile fracture modeling of metallic materials: a short review

Numerical evaluation of the ductile fracture for AA6101-T4 and AISI 4340 alloys using the Lemaitre and Gurson models

Experiment and prediction of the strain-range dependent ultra-low-cycle fatigue based on micromechanical cyclic void growth model

Contact Info

Product

Resources

About