Evolution of plastic deformation behavior upon strain-path changes in an A6022-T4 Al alloy sheet

Hama, Takayuki; Yagi, S.; Tatsukawa, Koji; Maeda, Yasuhiro; Maeda, Yasushi; Takuda, Hirohiko

doi:10.1016/j.ijplas.2020.102913

Cited by 29 publications

(5 citation statements)

References 51 publications

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“…crystal plasticity simulations predict a different curve progression for the normalised yield stress with respect to the experiment, were already reported by several authors. Examples are given in Yoshida et al [23], Gawad et al [25], Hama et al [26], Pagenkopf [10], Hirsiger [27] and Habraken et al [28]. A possible explanation for this difference between crystal plasticity simulations and experiments can also be in the literature.…”

Section: Discussionmentioning

confidence: 99%

Prediction of texture-induced plastic anisotropy in AA6014-T4 aluminium sheets utilising two different crystal plasticity-based constitutive models

Wessel

Perdahcıoğlu

Butz

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Two crystal plasticity-based constitutive models that differ with respect to the flow rule (rate-dependent/rate-independent) and hardening law (phenomenological/physical-based), among other aspects, are compared with each other. To this end, both crystal plasticity-based constitutive models were deployed within a finite element framework to predict the texture-induced plastic anisotropy of an AA6014-T4 aluminium alloy considering uniaxial loading at 0°, 15°, 30°, 45°, 60°, 75° and 90° with respect to the rolling direction. The results of the stress-strain curves, the normalised yield stresses and the r-values demonstrate that both crystal plasticity-based constitutive models provide comparable results. Also, the experimental r-values were predicted with reasonable accuracy. Differences with respect to the experimental normalised yield stresses are discussed and were most likely caused by an additional direction-dependent mechanism.

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Section: Discussionmentioning

confidence: 99%

Prediction of texture-induced plastic anisotropy in AA6014-T4 aluminium sheets utilising two different crystal plasticity-based constitutive models

Wessel

Perdahcıoğlu

Butz

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…In this study, a crystal plasticity finite element analysis program same that in the previous research [9] was used. As the stainless steel tube drawn by hollow sinking in the experiments have a face-centered cubic structure (FCC), the FCC slip system {111}<101> was considered.…”

Section: Experimental Procedures and Analysismentioning

confidence: 99%

Investigation of the Behavior of Surface Roughness Suppression Orientation on the Inner Surface of Metal Microtubes Using Crystal Plasticity Finite Element Method

Sakaguchi,

Kishimoto,

Hama

et al. 2024

MSF

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The objective of this study was to clarify whether the surface roughness suppression orientation actually suppresses surface roughness by using the crystal plasticity finite element method (CPFEM), which is based on the relationship between the surface roughness suppression orientation and deformation in the inner surface direction that we have clarified in the past. In order to simplify the calculation and reduce the computational cost, a model was created by embedding cylinders in a rectangular body, which was then divided into 1/4 for the analysis. A dislocation density increase model that takes work hardening into account was applied to the model, and values obtained from tensile tests were used for material constants. The model was divided into 2130 elements. The simulation results show that the surface roughness suppression orientation is actually more difficult to deform than its surroundings.

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“…Punching is a kind of plastic forming technology, including deep drawing, bending, spinning, hydraulic bulging, creep age forming, blanking, and flanging, in which a metal sheet is deformed or detached under the impact force exerted by a die [ 4 , 5 , 6 ]. It is well known that the die-based manufacturing mode can meet the high efficiency and contour consistency demands of the mass production of single-variety products.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of 2D Ultrasonic Vibration Incremental Forming of a 1060 Aluminum Alloy Sheet

Lv,

Wang,

Wang

et al. 2024

Materials

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Currently, 1060 aluminum alloy is widely applied in the electronics industry, construction, the aerospace field, traffic engineering, decorations, and the consumer goods market for its good chemical, physical, and mechanical properties. In general, excellent processing property is necessary and important for the manufacturing of complicated panels. In this paper, a special 2D ultrasonic vibration incremental forming method is designed to improve its plasticity and mechanical properties. Three kind of processing methods, including traditional single-point incremental forming, longitudinal ultrasonic vibration incremental forming, and 2D ultrasonic vibration incremental forming, are used for the flexible manufacturing of cones and cylindrical cups of 1060 aluminum alloy sheet. Then, micro-hardness tests, residual stress tests, and scanning electron microscopy tests are carried out to probe the changes in micro-structure and mechanical properties and to analyze the effects of different types of ultrasonic vibration on the plasticity and fracture characteristic of 1060 aluminum alloy. It is proven that 2D ultrasonic vibration facilitates the improvement of plasticity and surface qualities of 1060 aluminum alloy better than the other two processing methods. Therefore, the novel 2D ultrasonic vibration incremental forming process possesses substantial application value for the flexible and rapid manufacturing of complicated thin-walled component of aluminum alloy.

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Evolution of plastic deformation behavior upon strain-path changes in an A6022-T4 Al alloy sheet

Cited by 29 publications

References 51 publications

Prediction of texture-induced plastic anisotropy in AA6014-T4 aluminium sheets utilising two different crystal plasticity-based constitutive models

Prediction of texture-induced plastic anisotropy in AA6014-T4 aluminium sheets utilising two different crystal plasticity-based constitutive models

Investigation of the Behavior of Surface Roughness Suppression Orientation on the Inner Surface of Metal Microtubes Using Crystal Plasticity Finite Element Method

Characteristics of 2D Ultrasonic Vibration Incremental Forming of a 1060 Aluminum Alloy Sheet

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