Mechanical properties and fracture behaviors on 6061 aluminum alloy under shear stress state

Zhu, Hao; Qi, Fangjuan

doi:10.1007/s12598-011-0428-9

Cited by 12 publications

(3 citation statements)

References 7 publications

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“…Based on Table 3, it can be seen that the highly ductile 1060-H112 aluminum alloy projectile did not fragment, fall off, or break at higher initial velocities compared to higher strength aluminum alloy materials such as 6061-T6511H, 7A04, and 2A12. 1,5,7,19 The recovered projectile at the end of the test showed little change in the body mass. The experimental phenomenon verifies the conclusion given by Teng et al 20 based on numerical simulation results that upsetting and petal cracking occurred in highly ductile metal projectiles.…”

Section: Taylor Impact Testmentioning

confidence: 94%

Study of dynamic mechanical behavior of 1060-H112 aluminum alloy: Experimental and numerical simulation

Deng

Wang

Zhang

et al. 2022

The Journal of Strain Analysis for Engineering Design

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1060-H112 aluminum alloy with high ductility is widely used in industrial engineering. The study of its dynamic mechanical behavior has theoretical and engineering application value. In this paper, quasi-static tensile tests from room temperature to 250°C and high strain rate compression tests were conducted using a universal material testing machine and a Hopkinson compression bar. By using a hybrid test-numerical simulation method, a modified Johnson-Cook (MJC) strength model and Cockcroft-Latham (C-L) fracture criterion parameters were calibrated. Subsequently, Taylor impact tests were performed on 1060-H112 aluminum alloy specimens with a diameter of 12.66 mm and a length of 50.64 mm in the range of 176.3–483.03 m/s. Upsetting and tensile tearing were observed in the tests. A 12.68 mm diameter blunt nosed projectile impact test on 2 mm 1060-H112 aluminum alloy plate was also conducted with a light gas gun system, and the speed related parameters and failure modes were obtained. Finally, a three-dimensional model corresponding to the test was established in ABAQUS/Explicit finite element simulation software, and the failure modes of the Taylor rod and the velocity parameters and failure modes of the target impact test were predicted. The results show that the MJC strength model and the C-L fracture criterion can predict the experimental results of the two tests accurately. It shows that the MJC strength model and C-L fracture criterion have high accuracy, and they will play an important role in the application of 1060-H112 aluminum alloy in industrial engineering.

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Section: Taylor Impact Testmentioning

confidence: 94%

Study of dynamic mechanical behavior of 1060-H112 aluminum alloy: Experimental and numerical simulation

Deng

Wang

Zhang

et al. 2022

The Journal of Strain Analysis for Engineering Design

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show abstract

“…Recently, there have been active studies on fracture mechanisms in different stress states, and emphasis have been laid on the relation between fracture criterion and different fracture mechanisms [11][12][13][14][15][16][17][18]. For instance, Tang and Wang [19] showed that the criterion based on only brittle and ductile fracture is not sufficient for the prediction of all fracture modes.…”

Section: Introductionmentioning

confidence: 99%

A Fracture Criterion for Prediction of Fracture Initiation of Metal Materials at Various Stress States for Nuclear Waste Storage

Xue

Tang

2019

Science and Technology of Nuclear Installations

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A fracture criterion is newly proposed to evaluate fracture behavior and predict fracture initiation of metal materials in different complicated stress states for four different fracture mechanisms including quasicleavage fracture, normal fracture with void, shear fracture with void, and shear fracture without void. The dominant factors of these four different mechanisms are distinct, so it is impossible to capture all features of fracture initiation under different stress states with a single criterion, and different functions are necessary to predict fracture initiation of different mechanisms. In the new fracture criterion, different branches of the fracture criterion have been proposed corresponding to different fracture mechanisms. Quasicleavage fracture and normal fracture with void are described as a function of the principal stress, shear fracture with void is a function of the stress triaxiality and maximal shear stress, and shear fracture without void is only controlled by the maximal shear stress. The new fracture criterion is applied to predict the fracture initiation site and the fracture direction of nodular cast iron QT400-15 in combined tension-torsion tests. Predicted results are compared with experimental results to validate the performance of the new criterion in the intermediate stress triaxiality between 0 and 1/3. The new criterion is also applied to predict the crack initiation site and the direction of crack initiation of LY12 aluminium alloy and HY130 mild steel in mixed mode fracture tests to validate the performance of the new criterion in the high stress triaxiality. The new fracture criterion gives consistent results for these materials in a wide stress triaxiality range. It is shown that the new fracture criterion is a better supplement to the deficiency of fracture mechanics and also a better amendment to traditional strength theory in complicated stress states. Therefore, the new fracture criterion is recommended to be utilized to evaluate the fracture initiation of metal structures in nuclear waste storage and other engineering applications.

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“…Clinching process, a mechanical joining method, has been widely used in the aerospace, automobile industry, railway transportation and furniture industries due to its advantages of the connection of sheets [1][2][3][4][5]. Although the patent of the clinching was granted in 19 century, the clinching technology was not used in the industries.…”

Section: Introductionmentioning

confidence: 99%

Research on Clinching with AC Servo Direct-Drive Device

Han

Zhao

2014

AMM

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The purpose of this paper is to develop clinching technology using AC servo direct-drive device. The control systems of AC servo direct-drive device are designed to control the clinching. It could accurately control the connection of aluminum alloy 6061 sheets with the round joint. The joint quality is evaluated by the tensile tests. The results of the tensile tests shown that fracture load satisfied the required joint strength. Meanwhile, AC servo direct-drive device also could ensure the efficiency and quality of clinching process.

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Mechanical properties and fracture behaviors on 6061 aluminum alloy under shear stress state

Cited by 12 publications

References 7 publications

Study of dynamic mechanical behavior of 1060-H112 aluminum alloy: Experimental and numerical simulation

Study of dynamic mechanical behavior of 1060-H112 aluminum alloy: Experimental and numerical simulation

A Fracture Criterion for Prediction of Fracture Initiation of Metal Materials at Various Stress States for Nuclear Waste Storage

Research on Clinching with AC Servo Direct-Drive Device

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