Necking behavior of AA 6022-T4 based on the crystal plasticity and damage models

Kim, Jong-Bong; Yoon, Jeong Whan

doi:10.1016/j.ijplas.2015.06.013

Cited by 66 publications

(12 citation statements)

References 70 publications

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“…(2006); Hammi and Horstemeyer (2007) and Saanouni (2012) have studied the alternatives of coupling Gurson’s type theories with CDM-based theories to propose a uniﬁed formulation of the coupled damage-behavior. Because of its simplicity and effectiveness, the CDM model is often used in many studies to assess the damage process (Hu et al., 2016; Kim and Yoon, 2015; Liu et al., 2018). These works show that the CDM models represent the early stage of the softening behavior of the crystal.…”

Section: Coupled Elastoplastic Model With Damage Modelmentioning

confidence: 99%

Microstructural features effect on the evolution of cyclic damage for polycrystalline metals using a multiscale approach

Bouchedjra

Amrouche

Belouchrani

2020

International Journal of Damage Mechanics

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In the context of polycrystalline metals, the damage process analysis is generally restricted to surface of a sample containing some hundreds of grains, due to the inherent difficulties microstructural analysis. Determination of the grain size influence, misorientation and neighboring grains effect remains difficult with experimental studies. In this work, the influence of microstructural characteristics of polycrystalline metals on the evolution of the damage process under cyclic loading is investigated. On the basis of the quaternion theory, the orientation of each (crystal) grain is represented by a single angle (theta). The relative misorientation of each grain is set by the ratio of its misorientation over the average value of polycrystalline aggregate. The relative volume of grain is used as a parameter representing the grain size. The damage evolution under cyclic loading is identified using the coupling of the crystal plasticity model with the Continuum Damage Mechanics (CDM) model. The damage evolution and its distribution on polycrystalline aggregate are calculated by means of numerical homogenization over each grain. The heterogeneity distribution and damage evolution for polycrystalline metals have been analyzed. The obtained results show that neighboring grains effects are larger and may change the tendency that larger grains with great misorientation are the most damaged.

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Section: Coupled Elastoplastic Model With Damage Modelmentioning

confidence: 99%

Microstructural features effect on the evolution of cyclic damage for polycrystalline metals using a multiscale approach

Bouchedjra

Amrouche

Belouchrani

2020

International Journal of Damage Mechanics

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“…As for the damage evolution, a simple continuum damage equation is used to couple with the finite element method [3]. (11) where, is the initial shear strain, the maximum value of damage factor, is the maximum shear strain of the 12 slip systems in FCC crystal, M is the exponent that controls the shape of these curves.…”

Section: Numiform 2016mentioning

confidence: 99%

“…After the 1980s, a crystal plasticity extended finite element method (CPFEM) occurred in 2D or 3D framework [1][2][3]. Nowadays, it has become a widely-used method to simulate different kinds of materials and complicated outer boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Crystal plasticity extend FEM implementation of thermal-tensile aluminum alloy

Liu

Zhu

et al. 2016

MATEC Web Conf.

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Abstract. Multi-level approach has been used to simulate the thermal deformation of aluminium alloy at different temperature and strain rate. The crystal plasticity model is extended in the finite element method and the thermal behaviour is integrated in the constitutive equations. Moreover, the damage evolution is also reflected in the simulation using continuum damage mechanics model. Thus, the void evolution and thermal effect could both be shown in the simulation. A new shear strain rate model is constructed with the thermal activated mechanism to describe the rate dependent behaviours during tensile test. The thermal parameters are determined in a fitting test of representative volume element to compare with the experimental data. The results prove that the mechanical tensile behaviour of 5052 aluminium alloy could be well described at different temperatures. The damage evolution process is expressed by the stress concentration and strain concentration in the finite element simulation, which are also confirmed by the experiments.

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“…The well known limitations (violation of equilibrium, assumptions on grains morphologies and interactions) of mean field models (Taylor (1938), Kröner (1961), Tomé (1993), Van Houtte et al (2005)) are overriden at the expense of a higher numerical cost. The unalterated growth of computing power over the last few decades has triggered an extensive use of CPFEM for various applications, in the research framework, Erieau and Rey (2004), Kim et al (2012), Khadyko et al (2015), Kim and Yoon (2015), Khan et al (2015) as well as for industrial process simulations (Kalidindi and Anand (1992), Beaudoin et al (1994), Grujicic and Batchu (2002), Li et al (2008), Rousselier et al (2009), Verma et al (2013)). A thorough review of CPFEM features, applications and challenges can be found in Roters et al (2010).…”

Section: Introductionmentioning

confidence: 99%

Crystal plasticity and phenomenological approaches for the simulation of deformation behavior in thin copper alloy sheets

Adzima

Balan

Manach

et al. 2017

International Journal of Plasticity

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International audienceIn the expanding context of device miniaturization, forming processes of ultra thin sheetmetals are gaining importance. Numerical simulation of these processes requires accurate material modeling. In this study, both the phenomenological modeling approach and the crystal plasticity finite element method (CPFEM) are considered. Theoretical definitions of both models, numerical implementation as well as their parameter identification procedures are outlined. Subsequently they are compared on a one to one basis, mainly with regards to their ability to predict mechanical responses for a variety of strain loading paths

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Necking behavior of AA 6022-T4 based on the crystal plasticity and damage models

Cited by 66 publications

References 70 publications

Microstructural features effect on the evolution of cyclic damage for polycrystalline metals using a multiscale approach

Microstructural features effect on the evolution of cyclic damage for polycrystalline metals using a multiscale approach

Crystal plasticity extend FEM implementation of thermal-tensile aluminum alloy

Crystal plasticity and phenomenological approaches for the simulation of deformation behavior in thin copper alloy sheets

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