A unified model of ductile fracture considering strain rate and temperature under the complex stress states

Cao, Jing; Sun, Zhichao; Huang, Long; Yin, Zhikun

doi:10.1016/j.jmatprotec.2021.117275

Cited by 11 publications

(1 citation statement)

References 30 publications

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“…An exemplary solution was proposed in [9], where a failure model DF2014 was successfully extended using the strain rate hardening and thermal softening effect terms of the J-C failure model for a AA7075 sheet material. Similar approach is applied in this research as well by using the MMC fracture model as the basis with an extension by the strain rate and thermal effect terms of the J-C failure model to define the following equation:…”

Section: Introductionmentioning

confidence: 99%

Extension of the modified Mohr-Coulomb fracture model by a strain rate and temperature dependence

RAMIREZ¹

2023

Materials Research Proceedings

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Abstract. During industrial sheet metal processes such as shear cutting, high temperatures and strain rates occur. Due to materials dependency on temperature and strain rate, the numerical fracture modelling should consider these both highly influential factors for accurate simulation results. Since the widely used Modified Mohr-Coulomb (MMC) fracture model does not take the dependency on temperature and strain rate into account, the objective of this research is therefore to extend the MMC fracture model. For the fracture characterization, miniaturised tensile tests under variation of specimen geometry, temperature and strain rate are conducted. Additionally, tensile tests with butterfly specimens under varying stress states are carried out. In order to determine material specific MMC parameters, the experimental tests are numerically depicted in Abaqus. The temperature and strain rate extension of the MMC fracture model is based on the Johnson-Cook failure model. With this approach, a temperature and strain-rate dependent MMC fracture model is developed for the dual phase steel DP980.

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Section: Introductionmentioning

confidence: 99%

Extension of the modified Mohr-Coulomb fracture model by a strain rate and temperature dependence

RAMIREZ¹

2023

Materials Research Proceedings

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Modeling Anisotropic Ductile Fracture Behavior of Sheet Metals Considering Non-directionality of Equi-Biaxial Tensile Fracture

Wang

2023

J. of Materi Eng and Perform

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Dynamic recrystallization in a near β titanium alloy under different deformation modes – Transition and correlation

Yin,

Sun,

Fan

et al. 2024

Acta Materialia

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A unified model of ductile fracture considering strain rate and temperature under the complex stress states

Cited by 11 publications

References 30 publications

Extension of the modified Mohr-Coulomb fracture model by a strain rate and temperature dependence

Extension of the modified Mohr-Coulomb fracture model by a strain rate and temperature dependence

Modeling Anisotropic Ductile Fracture Behavior of Sheet Metals Considering Non-directionality of Equi-Biaxial Tensile Fracture

Dynamic recrystallization in a near β titanium alloy under different deformation modes – Transition and correlation

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