Experimental and numerical study on shear-punch test of 6060 T6 extruded aluminum profile

Qian, Lingyun; Paredes, Marcelo; Wierzbicki, Tomasz; Sparrer, Yannik; Feuerstein, Martin; Zhang, Pan; Fang, Gang

doi:10.1016/j.ijmecsci.2016.09.008

Cited by 30 publications

(4 citation statements)

References 19 publications

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“…Currently, most of the studies that can be found in the literature on bumpers are focused on optimizing the designs and manufacturing processes or on the use of new composites. In relation to the optimization of traditional bumpers, the main goal is the optimization of the section and thickness of the component [6,7]. Tanlak et al [8] optimized the shape of a bumper beam to maximize its crashworthiness under impact conditions very similar to EuroNCAP tests.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption and residual bending behavior of biocomposites bumper beams

Díaz-Álvarez

Jiao-Wang

Feng

et al. 2020

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Energy absorption and residual bending behavior of biocomposites bumper beams

Díaz-Álvarez

Jiao-Wang

Feng

et al. 2020

Composite Structures

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“…Even so, the uncoupled fracture models still show great potential in numerical prediction of metal forming because of its simplicity (Qian et al., 2016; Zhang et al., 2019b). Moreover, coupled damage models take advantage of some interesting features developed in the uncoupled fracture models in order to enhance the stress state dependency on damage evolution (Lian et al., 2014; Yue et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Enhanced CDM model accounting of stress triaxiality and Lode angle for ductile damage prediction in metal forming

Zhang

Badreddine

Hfaiedh

et al. 2020

International Journal of Damage Mechanics

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This paper deals with the prediction of ductile damage based on CDM approach fully coupled with advanced elastoplastic constitutive equations. This fully coupled damage model is developed based on the total energy equivalence assumption under the thermodynamics of irreversible processes framework with state variables. In this model, the damage evolution is enhanced by accounting for both stress triaxiality and Lode angle. The proposed constitutive equations are implemented into Finite Element (FE) code ABAQUS/Explicit through a user material subroutine (VUMAT). The material parameters are determined by the hybrid experimental-numerical method using various tensile and shear tests. Validation of the proposed model has been done using different tests of two aluminum alloys (Al6061-T6 and Al6014-T4). Through comparisons of numerical simulations with experimental results for different loading paths, the predictive capabilities of the proposed model have been shown. The model is found to be able to capture the initiation as well as propagation of macro-crack in sheet and bulk metals during their forming processes.

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“…They illustrated that predictive ability of fracture criteria highly depend on whether they can accurately reflect the microscopic fracture mechanism. Recently, more and more attentions have been paid to characterize the shear fracture and lode parameter as the preferential characterizing variables have been incorporated into many fracture criteria [4,5,10,11,12] MMC fracture model has been applied by Li et al [1], Qian et al [13,14] and Luo and Wierzbicki [15] to successfully predict fracture under the stress states of in-plane shear, uniaxial tension and plane-strain tension during sheet metal forming processes. Lou et al [16,17] proposed a new shear-controlled fracture criterion considering the ductile fracture mechanism of void evolution.…”

Section: Introductionmentioning

confidence: 99%

Correlation of Macroscopic Fracture Behavior with Microscopic Fracture Mechanism for AHSS Sheet

et al. 2019

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This research aims to correlate the macroscopic fracture phenomenon with its microscopic fracture mechanism for an advanced high-strength steel (AHSS) TRIP 780 sheet by applying a combined experimental-numerical approach. Six specimens with different shapes were tensioned to fracture and the main deformation areas of specimens were subjected to stress states ranging from lower to higher stress triaxiality. The final fracture surface feature for each specimen was obtained to characterize the macroscopic fracture modes at different stress states. The scanning electron microscope (SEM) fractographies of fracture surfaces were detected to reveal the microscopic fracture mechanisms. The stress triaxiality evolution was applied to correlate of fracture mode and fracture mechanism by comparing the macroscopic fracture features as well as micro-defect changes. An increase of stress triaxiality leads to voids extension and then results in a voids-dominant fracture. The micro-shear-slip tends to appear in the stress triaxiality level lower than that of pure shear stress state. The fracture behavior of a practice deformation process was the result of interplay between shear-slip fracture and void-dominant fracture. The unified relationship between average void sizes and stress triaxiality was obtained. The void growth was predicted by the Rice–Tracey model with higher precision.

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Experimental and numerical study on shear-punch test of 6060 T6 extruded aluminum profile

Cited by 30 publications

References 19 publications

Energy absorption and residual bending behavior of biocomposites bumper beams

Energy absorption and residual bending behavior of biocomposites bumper beams

Enhanced CDM model accounting of stress triaxiality and Lode angle for ductile damage prediction in metal forming

Correlation of Macroscopic Fracture Behavior with Microscopic Fracture Mechanism for AHSS Sheet

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