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Journal articles on the topic 'Aluminum alloys Bauschinger effect'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Jordon, J. B., M. F. Horstemeyer, K. Solanki, and Y. Xue. "Damage and stress state influence on the Bauschinger effect in aluminum alloys." Mechanics of Materials 39, no. 10 (October 2007): 920–31. http://dx.doi.org/10.1016/j.mechmat.2007.03.004.

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2

Zhu, Wen Feng, Jie Wang, Pei Jian Lin, and Bing Yang Zhang. "Numerical Simulation of Aluminum Alloy Welding for Butt-Joint of AA2024 Considering Surface Effect Element." Applied Mechanics and Materials 456 (October 2013): 478–81. http://dx.doi.org/10.4028/www.scientific.net/amm.456.478.

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Aluminum has higher conductivity, convection coefficient, and oxidability, which casuse low plasticity in high temperature compared to convectional low carbon steel. These properties make its welding numerical simulation much more difficult. Thermal simulation is the foundation of aluminums coupled calculations of thermo-elasto-plastic for welding. In this paper, a butt-joint of aluminum AA2024-T3s welding is numerical modeled based on surface effect element. And bilinear kinematic hardening is used to take into the Bauschinger effect. The simulation results agree well, which shows that node temperature calculation can be improved by this method.

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3

McCullough, R. R., J. B. Jordon, P. G. Allison, D. J. Bammann, Lyan Garcia, and T. W. Rushing. "Characterization of the Bauschinger effect in an extruded aluminum alloy." Strength, Fracture and Complexity 10, no. 3-4 (February 5, 2018): 175–90. http://dx.doi.org/10.3233/sfc-170208.

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4

Hidayetoglu, Tulin K., Paul N. Pica, and W. L. Haworth. "Aging dependence of the Bauschinger effect in aluminum alloy 2024." Materials Science and Engineering 73 (August 1985): 65–76. http://dx.doi.org/10.1016/0025-5416(85)90296-4.

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5

Reich, M., and O. Kessler. "Bauschinger effect in undercooled 6082 aluminium wrought alloy." HTM Journal of Heat Treatment and Materials 67, no. 5 (October 2012): 331–36. http://dx.doi.org/10.3139/105.110165.

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6

Horstemeyer, Mark F. "Damage influence on Bauschinger effect of a cast A356 aluminum alloy." Scripta Materialia 39, no. 11 (November 1998): 1491–95. http://dx.doi.org/10.1016/s1359-6462(98)00343-1.

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7

Gau, Jenn-Terng, and Gary L. Kinzel. "A New Model for Springback Prediction for Aluminum Sheet Forming." Journal of Engineering Materials and Technology 127, no. 3 (March 23, 2005): 279–88. http://dx.doi.org/10.1115/1.1924563.

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A new model for springback, based on isotropic and kinematic hardening models, the Mroz multiple surfaces model, and observations from experimental data, is proposed in this paper. In this model, a material parameter (CM), which is significant after reverse yielding, is suggested to handle the Bauschinger effect. A simple, low-cost, multiple-bending experiment has been developed to determine CM for aluminum alloys AA6022-T4 and AA6111-T4. The new model fits available experimental results better than the isotropic and kinematic hardening models and the Mroz multiple surfaces model.

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8

Uemori, Takeshi, Satoshi Sumikawa, Tetsuo Naka, Ninshu Ma, and Fusahito Yoshida. "Influence of Bauschinger Effect and Anisotropy on Springback of Aluminum Alloy Sheets." MATERIALS TRANSACTIONS 58, no. 6 (2017): 921–26. http://dx.doi.org/10.2320/matertrans.l-m2017812.

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9

Uemori, Takeshi, Satoshi Sumikawa, Tetsuo Naka, Ninshu Ma, and Fusahito Yoshida. "Influence of Bauschinger effect and anisotropy on springback of aluminum alloy sheets." Journal of Japan Institute of Light Metals 65, no. 11 (2015): 582–87. http://dx.doi.org/10.2464/jilm.65.582.

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10

Mendes Lima, Rodrigo, and Ernesto Massaroppi Jr. "Study of Aluminum Alloy 7050 T7451 Isotropic Hardening." Materials Science Forum 869 (August 2016): 526–31. http://dx.doi.org/10.4028/www.scientific.net/msf.869.526.

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This paper presents the yielding surface isotropic hardening study of the aluminum alloy 7050 T7451 submitted to monotonic loadings, considering the nonlinear constitutive model proposed by Voce. The stress state imposed characterizes a behavior whose plastic deformations cannot be neglected. The analysis depends on the segregation between the isotropic and the kinematic hardening that composes the material’s behavior during its transient life. Monotonic and cyclic tension-compression tests have been realized in order to allow the Bauschinger Effect understanding. The results have been compared to FEM simulations in order to validate the model.

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11

Guo, Xunzhong, Yanbo Gu, Hui Wang, Kai Jin, and Jie Tao. "The Bauschinger effect and mechanical properties of AA5754 aluminum alloy in incremental forming process." International Journal of Advanced Manufacturing Technology 94, no. 1-4 (August 29, 2017): 1387–96. http://dx.doi.org/10.1007/s00170-017-0965-y.

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12

Olfa, Daghfas, Znaidi Amna, Gahbiche Amen, and Nasri Rachid. "Identification of the anisotropic behavior of an aluminum alloy subjected to simple and cyclic shear tests." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 3 (March 15, 2018): 911–27. http://dx.doi.org/10.1177/0954406218762947.

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The main purpose of this paper is to study the behavior of the 2000 aluminum alloy series used particularly in the design of Airbus fuselage. The characterization of the mechanical behavior of sheet metal on 2024 aluminum alloy and its response to various loading directions under monotonic and cyclic tests are extremely considered. To solve this problem, first, an experimental platform which essentially revolves around mechanical tests and then a series of optical and transmission electronic visualizations have been carried out. These mechanical tests are monotonic and cyclic shear tests applied under the same conditions on the test specimens of 2024 aluminum alloy. Cyclic shear tests have been carried out in order to show the Bauschinger effect and then the kinematic hardening phenomenon. The hardening curves of the simple shear test showed the Portevin-Le Chatelier effect for all loading directions. Next, the experimental results obtained (Portevin-Le Chatelier and Bauschinger effects) are discussed and analyzed in relation to the microstructure of the studied alloy using an optical microscope and a transmission electron microscope. Thereafter, the plastic anisotropy is modeled using an identification strategy that depends on a plastic criterion, an isotropic hardening law, a kinematic hardening (linear and nonlinear) law, and an evolution law. More precisely, particular attention is paid to the isotropic power Hollomon law, the saturation Voce law, and the saturation Bron law. In the case of the cyclic tests, linear kinematic hardening described by the Prager law and nonlinear kinematic hardening expressed by the Armstrong–Frederick law are introduced. Finally, by smoothing the experimental hardening curves for the various simple and cyclic shear tests, a selection is made in order to choose the most appropriate law for the identification of the material behavior.

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13

Uemori, Takeshi, Kento Fujii, Toshiya Nakata, Shinobu Narita, Naoya Tada, Tetsuo Naka, and Fusahito Yoshida. "Springback Analysis of Aluminum Alloy Sheet Metals by Yoshida-Uemori Model." Key Engineering Materials 725 (December 2016): 566–71. http://dx.doi.org/10.4028/www.scientific.net/kem.725.566.

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During the last few decades, the enhancement of prediction capability of the sheet metal forming have been increasing dramatically. High accurate yield criteria and wokhardening model (especially, non-linear kinematic hardening model) have a great importance for the prediction of the final shapes of sheet metal. However, the predicted springback accuracy of aluminum alloy sheet metal is not still good due to their complicated plastic deformation behaviors.In the present research, the springback deformation of aluminum alloy sheet metals were investigated by finite element calculation with consideration of initial anisotropy and the Bauschinger effect. In order to examine the effect of the initial and deformation induced anisotropy on the springback deformation, several types of high accurate yield function and hardening rules are utilized in the present research. The calculated springback by Yoshida 6th yield function [1] and Yoshida-Uemori model [2] shows an excellent agreement with the corresponding experimental data, while the other models underestimate the springback.

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14

LUO, JUAN, GUOZHENG KANG, and MINGXING SHI. "SIMULATION TO THE CYCLIC DEFORMATION OF POLYCRYSTALLINE ALUMINUM ALLOY USING CRYSTAL PLASTICITY FINITE ELEMENT METHOD." International Journal of Computational Materials Science and Engineering 02, no. 03n04 (December 2013): 1350019. http://dx.doi.org/10.1142/s204768411350019x.

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A crystal plasticity based finite element model (i.e., FE model) is used in this paper to simulate the cyclic deformation of polycrystalline aluminum alloy plates. The Armstrong–Frederick nonlinear kinematic hardening rule is employed in the single crystal constitutive model to capture the Bauschinger effect and ratcheting of aluminum single crystal presented under the cyclic loading conditions. A simple model of latent hardening is used to consider the interaction of dislocations between different slipping systems. The proposed single crystal constitutive model is implemented numerically into a FE code, i.e., ABAQUS. Then, the proposed model is verified by comparing the simulated results of cyclic deformation with the corresponding experimental ones of a face-centered cubic polycrystalline metal, i.e., rolled 5083 aluminum alloy. In the meantime, it is shown that the model is capable of predicting local heterogeneous deformation in single crystal scale, which plays an important role in the macroscopic deformation of polycrystalline aggregates. Under the cyclic loading conditions, the effect of applied strain amplitude on the responded stress amplitude and the dependence of ratcheting strain on the applied stress level are reproduced reasonably.

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15

Karakaş, Özler, and Jarosław Szusta. "Bauschinger effect at elevated temperatures in a 2024-T3 aluminum alloy for designing wind turbine components." Materials Testing 59, no. 9 (September 2017): 735–43. http://dx.doi.org/10.3139/120.111064.

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16

Jiang, Shan, Wei Zhang, Xiaoyang Li, and Fuqiang Sun. "An Analytical Model for Fatigue Crack Propagation Prediction with Overload Effect." Mathematical Problems in Engineering 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/713678.

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In this paper a theoretical model was developed to predict the fatigue crack growth behavior under the constant amplitude loading with single overload. In the proposed model, crack growth retardation was accounted for by using crack closure and plastic zone. The virtual crack annealing model modified by Bauschinger effect was used to calculate the crack closure level in the outside of retardation effect region. And the Dugdale plastic zone model was employed to estimate the size of retardation effect region. A sophisticated equation was developed to calculate the crack closure variation during the retardation area. Model validation was performed in D16 aluminum alloy and 350WT steel specimens subjected to constant amplitude load with single or multiple overloads. The predictions of the proposed model were contrasted with experimental data, and fairly good agreements were observed.

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17

Grilo, Tiago Jordão, Nelson Souto, Robertt Angelo Fontes Valente, António Andrade-Campos, Sandrine Thuillier, and R. J. Alves de Sousa. "On the Development and Computational Implementation of Complex Constitutive Models and Parameters’ Identification Procedures." Key Engineering Materials 554-557 (June 2013): 936–48. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.936.

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Nowadays, the automotive industry has focused its attention to weight reduction of the vehicles to overcome environmental restrictions. For this purpose, new materials, namely, advanced high strength steels and aluminum alloys have emerged. These materials combine good formability and ductility, with a high tensile strength due to a multi-phase structure (for the steel alloys) and reduced weight (for the aluminum alloys). As a consequence of their advanced performances, complex constitutive models are required in order to describe the various mechanical features involved. In this work, the anisotropic plastic behavior of dual-phase steels and high strength aluminum alloys is described by the non-quadratic Yld2004-18p yield criterion, combined with a mixed isotropic-nonlinear kinematic hardening law. This phenomenological model allows for an accurate description of complex anisotropy and Bauschinger effects of the materials, which are essential for a reliable prediction of deep drawing and springback results using numerical simulations. To this end, an efficient computational implementation is needed, altogether with an inverse methodology to properly identify the constitutive parameters to be used as numerical simulation input. The constitutive model is implemented in the commercial finite element code ABAQUS as a user-defined material subroutine (UMAT). A multi-stage return mapping procedure, which utilizes the control of the potential residual, is implemented to integrate the constitutive equations at any instant of time (pseudo-time), during a deformation process. Additionally, an inverse methodology is developed to identify the constitutive model parameters of the studied alloys. The identification framework is based on an interface program that links an optimization software and the commercial finite element code. This methodology compares experimental data with the respective results numerically obtained. The implemented optimization process aims to minimize an objective function, which defines the difference between experimental and numerical results using the Levenberg-Marquardt gradient-based optimization method. The proposed integrated approach is validated in a number of benchmarks in sheet metal forming, including monotonic and cyclic loading, with the goal to infer about the modelling of anisotropic effects.

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18

El-Danaf, Ehab, and Tarek M. El-Hossainy. "Different Stress States Deformation of AA6082 Subjected to Different Artificially Aged Conditions." Advanced Materials Research 83-86 (December 2009): 421–28. http://dx.doi.org/10.4028/www.scientific.net/amr.83-86.421.

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The artificial aging response of Al-Mg-Si 6082 aluminum alloy is investigated over a wide temperature range. Samples aged to under aged, peak aged and over aged conditions are further subjected to plastic deformation by simple compression, plane strain compression and simple shear. The flow behavior and the corresponding hardening rates are documented. Equivalent stress – strain curves are generated for the three stress states for an aging temperature of 160oC. Strain reversal experiments in simple shear were carried out in order to characterize the Bauschinger effect. Strain path change experiments were also conducted, in which the gage section that was first deformed by simple shear was further deformed by simple compression.

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19

Zhu, Jie, Shang Yu Huang, Wei Liu, and Xi Fan Zou. "Semi-Analytical or Inverse Identification of Yoshida-Uemori Hardening Model." Key Engineering Materials 775 (August 2018): 531–35. http://dx.doi.org/10.4028/www.scientific.net/kem.775.531.

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The Yoshida-Uemori combined kinematic and isotropic hardening model is widely applied to numerical prediction of spring-back during sheet metal forming process. With the experimental plastic behavior of aluminum alloy AA5182-O sheet under single cyclic loading, the semi-analytical method was presented to calibrate the parameters of Yoshida-Uemori hardening model. Meanwhile, an inverse identification method was suggested by parameter optimization for minimizing the error between the experimental and predicted results. By comparing the two methods, the Yoshida-Uemori hardening model identified by inverse method is found to be more accurate for description of the Bauschinger effect than the one identified by semi-analytical method, especially for transient softening phenomenon.

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20

Torres Franco, David, Guillermo Urriolagoitia-Sosa, Guillermo Urriolagoitia-Calderón, Luis Hector Hernandez Gomez, Beatriz Romero Angeles, and Vistor Fernando Cedeño Verduzco. "Comparative Experimental Analysis of Different Bending Methods for the Mechanical Characterization of Materials with Previous Loading History (Stress-Strain Curves)." Advanced Materials Research 314-316 (August 2011): 1377–82. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.1377.

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Until now, the most common way to obtain the stress-strain curves for a material is through axial tensile testing. However, in recent years there have been developments on alternative methods for material characterization. In this sense, the bending procedure has proved to be a powerful technique, which allows simultaneous determination of tension and compression stress behavior by the use of bending moment and strain data. The characterization of materials by means of bending data was presented for the first time in 1910 by the German engineer Herbert. Some years later Nadai and Marin developed some research on this procedure. More recently, several researchers (Mayville and Finnie, Laws and Urriolagoitia-Sosa, et.al.) have developed diverse bending methods for the simultaneous determination of tension and compression stress-strain curves. In this paper, three bending methods are analyzed and compared against axial tensile and compressive results. It was decided to apply each one of the bending procedures to bent rectangular cross sections beams made from 6063-T5 Aluminum alloy. The specimens were annealed to eliminate previous loading history and axially pulled to induce a controlled anisotropic behavior (strain hardening and Bauschinger effect). The results obtained by two of the three methods provided great confidence and have certified the application of this new technique to characterize material.

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21

Rosenschon, Martin, Sebastian Suttner, and Marion Merklein. "Validation of Kinematic Hardening Parameters from Different Stress States and Levels of Plastic Strain with the Use of the Cyclic Bending Test." Key Engineering Materials 639 (March 2015): 385–92. http://dx.doi.org/10.4028/www.scientific.net/kem.639.385.

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The recent development of new lightweight sheet metal materials, like advanced high-strength steels or aluminium alloys, in combination with an increasing component complexity provides new challenges to the numerical material modelling in the FEM based process design. An auspicious approach to improve the quality of the numerical results – most notably in springback analysis – is the modelling of the so called Bauschinger effect achieved through implementation of kinematic hardening models. Within this paper the influence of the stress state and the level of pre-strain on the numerical simulation result of the advanced high strength steel DP-K45/78+Z will be analysed. For this purpose, a parameter identification of the kinematic hardening law according to Chaboche and Rousselier is performed at different pre-strains on the basis of experimental data from tension-compression tests as well as cyclic shear tests. Finally, the identified parameters are validated in a comparison between numerical and experimental results of a cyclic bending test.

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22

Tsutamori, Hideo, Toshiro Amaishi, Ray Rizaldi Chorman, Matthias Eder, Simon Vitzthum, and Wolfram Volk. "Evaluation of Prediction Accuracy for Anisotropic Yield Functions Using Cruciform Hole Expansion Test." Journal of Manufacturing and Materials Processing 4, no. 2 (May 3, 2020): 43. http://dx.doi.org/10.3390/jmmp4020043.

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To evaluate the prediction accuracy of the anisotropic yield function, we propose an original cruciform hole expansion test. Displacements on two axes were applied to the cruciform specimens with a hole in the center. The thickness strain in the region near the hole was compared to the simulation results. Because this forming test is free of friction and bending, it is an appropriate method to assess the anisotropic yield function without the influences of friction or the Bauschinger effect, or the need to consider the stress-strain curve in high-strain region. Hill1948, YLD2000-2D, and spline yield function which is an improved version of the Vegter model were selected, and 6000 series aluminum alloy sheets (A6116-T4) were used in this study. The parameter identification method of the spline yield function also proposed in this paper using the pseudo plane strain tensile test and optimization software. As a result, the spline yield function has better predictive accuracy than the conventional anisotropic yield functions Hill1948 and YLD2000-2D.

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23

Заруцкий, Анатолий Викторович. "АНАЛИЗ ОСТАТОЧНЫХ НАПРЯЖЕНИЙ ПРИ ПРИМЕНЕНИИ КОНСТРУКТИВНО-ТЕХНОЛОГИЧЕСКИХ МЕТОДОВ ПОВЫШЕНИЯ ДОЛГОВЕЧНОСТИ. СООБЩЕНИЕ 1. СВОБОДНОЕ ОТВЕРСТИЕ." Aerospace technic and technology, no. 3 (July 15, 2019): 42–49. http://dx.doi.org/10.32620/aktt.2019.3.05.

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Increasing the fatigue life of elements of aircraft structures by methods based on local plastic deformation of the material in the hole zone directly depends on the magnitude and sign of the residual stresses. This paper presents the results of the study of residual stresses, which are formed when using constructive-technological methods to improve the durability of elements of aircraft structures with a free hole. The processes of cold expansion and barrier compression of the material in the area of the hole are considered. The studies were performed using the finite element method for two aluminum alloys D16AT and V95pchT2, which are widely used in the domestic aircraft industry. Material properties are given in the form of monotonous strain diagrams obtained by tensile testing of standard samples. The contact problem was solved in a physically nonlinear formulation, taking into account the friction between the tool and the structural element. The nonlinear behavior of the material is modeled using a multilinear model with kinematic hardening, taking into account the Bauschinger effect. Characteristics of the stress-strain state arising in the structure after the completion of the process of refining and barrier compression have been obtained. Equivalent stresses calculated according to the energy theory of strength were analyzed as residual stresses. In this case, the sign of stress is taken to be equal to the sign of the largest in magnitude principal stress. In the study of the process of cold expansion, a variable parameter was interference fit. The dependence of the residual stress in the hole on the magnitude of the interference fit is obtained. In the case of barrier compression, the variable parameters were the geometry of the tool being introduced (width, grip angle), the thickness of the structural element and depth of implementation. The dependences of the change in residual stresses on the parameters considered are constructed. It is shown that such parameters can be selected, at which the effect of compression will be most significant. But this will increase the effort required to complete this process.

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24

Aran, Ahmet, Mehmet Demirkol, and Aykut Karabulut. "Bauschinger effect in precipitation-strengthened aluminium alloy 2024." Materials Science and Engineering 89 (May 1987): L35—L39. http://dx.doi.org/10.1016/0025-5416(87)90271-0.

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25

Koizumi, Takayuki, and Mitsutoshi Kuroda. "Measurement of Bauschinger Effect in Ultrafine-Grained A1070 Aluminum Rods." Key Engineering Materials 725 (December 2016): 202–7. http://dx.doi.org/10.4028/www.scientific.net/kem.725.202.

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In this study, the Bauschinger effect in ultrafine-grained pure aluminum rods (A1070) was investigated. The samples were produced by multipass equal-channel angular pressing (ECAP) with ‘route BC’, which is known to give nearly equiaxial-shaped crystal grains. Dumbbell-shaped specimens with a circular cross section were machined from the samples subjected to ECAP to carry out uniaxial tensile and compressive tests, which were followed by reversal of the loading direction at a prestrain of 1%. The influence of the grain size on the intensity of the Bauschinger effect was investigated. The Bauschinger effect is interpreted to be a manifestation of internal stresses produced near the grain boundaries by the accumulation of dislocations. On the basic of our experimental results, the roles of the grain boundaries, which are usually at least partially considered as barriers to dislocation motion, are reconsidered.

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26

Taya, M., K. E. Lulay, K. Wakashima, and D. J. Lloyd. "Bauschinger effect in particulate SiC-6061 aluminum composites." Materials Science and Engineering: A 124, no. 2 (April 1990): 103–11. http://dx.doi.org/10.1016/0921-5093(90)90140-x.

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27

Paul, Jonathan D. H., Roland Hoppe, and Fritz Appel. "On the Bauschinger effect in TiAl alloys." Acta Materialia 104 (February 2016): 101–8. http://dx.doi.org/10.1016/j.actamat.2015.10.036.

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28

Nguyen, V. T., Z. Chen, and P. F. Thomson. "Special Issue on Engineering Plasticity: Prediction of spring-back in anisotropic sheet metals." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 218, no. 9 (September 1, 2004): 1087. http://dx.doi.org/10.1243/0954406041991161.

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Constitutive equations for plane stress problems based on the modified form of a non-quadratic yield criterion suitable for aluminium alloy sheet were derived to account for the Bauschinger effect (BE). Numerical predictions of spring-back based on the original yield function and its modified form were performed and compared with the results of draw-bending tests. The results show the necessity of including the BE in the constitutive equations to enhance the accuracy in predicting spring-back.

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29

Nguyen, V. T., Z. Chen, and P. F. Thomson. "Prediction of spring-back in anisotropic sheet metals." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 218, no. 6 (June 2004): 651–61. http://dx.doi.org/10.1243/095440604774202295.

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Constitutive equations for plane stress problems based on the modified form of a non-quadratic yield criterion suitable for aluminium alloy sheet were derived by Barlat et al. to account for the Bauschinger effect (BE). Numerical predictions of spring-back based on the original yield function and its modified form wer performed and compared with the results of draw-bending tests. The results show the necessity of including the BE in the constitutive equations to enhance the accuracy in predicting spring-back.

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30

Kuruppu, M. D., J. F. Williams, N. Bridgford, R. Jones, and D. C. Stouffer. "Constitutive modelling of the elastic–plastic behaviour of 7050-T7451 aluminium alloy." Journal of Strain Analysis for Engineering Design 27, no. 2 (April 1, 1992): 85–92. http://dx.doi.org/10.1243/03093247v272085.

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This paper presents an extension of the Ramaswamy, Stouffer, and Laflen unified elastic–viscoplastic theory which uses internal state variables to represent a strain rate insensitive aluminium alloy namely 7050-T7451 alloy. The model constants are evaluated from the results of a uniaxial tensile test, with strain hold at saturation, and a fatigue loop. Strain holds in the saturated region of tensile monotonic curves resulted in significant amounts of stress relaxation. The material response is cyclically stable and reveals a strong Bauschinger effect. There is a significant reduction in the yield stress between the initial yield and the subsequent tensile yield stress observed after a fully reversed fatigue cycle. All of these material characteristics were predicted successfully.

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31

Oloyede, V. O. A., and C. E. Turner. "Prediction of settled cyclic behaviour of metals using first cycle data and combined hardening laws for reversed plasticity." Journal of Strain Analysis for Engineering Design 29, no. 2 (April 1, 1994): 105–16. http://dx.doi.org/10.1243/03093247v292105.

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This paper presents a generalized concept of combined hardening which is examined by experimental and computational methods. A ‘kinematic displacement parameter’, β, relating the movement of the yield function surface to the Bauschinger effect, is defined in terms of its dependence on material properties and loading state. Experimental relations between β and the plastic strain, εp, are prsented for three metals. The monotonic stress-strain and β data are used in a finite element program to show that settled cyclic hysteresis loops are soon established. Settled cyclic stress-strain curves computed in this way are in good agreement with the experimental results for an aluminium alloy, a stainless steel that shows cyclic hardening, and a titanium alloy that shows little cyclic effect.

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32

Li, Ling, Lu Ming Shen, and Gwénaëlle Proust. "Crystal Plasticity Simulation of the Bauschinger Effect of Polycrystalline AA7075 through a Texture-Based Representative Volume Element Model." Applied Mechanics and Materials 553 (May 2014): 22–27. http://dx.doi.org/10.4028/www.scientific.net/amm.553.22.

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A texture-based representative volume element (TBRVE) model is developed for the three-dimensional crystal plasticity (CP) finite element simulations of the Bauschinger effect (BE) of polycrystalline aluminium alloy 7075 (AA7075). In the simulations, the grain morphology is created using the Voronoi tessellation method with the material texture systematically discretised from experiment. A modified CP constitutive model, which takes into account the backstress, is used to simulate the BE during cyclic loading. The model parameters are calibrated using the first cycle stress-strain curve and used to predict the mechanical response to the cyclic saturation of AA7075. The results indicate that the proposed TBRVE CP finite element model can effectively capture the BE at the grain level.

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33

Gan, Wei, Hyuk Jong Bong, Hojun Lim, R. K. Boger, F. Barlat, and R. H. Wagoner. "Mechanism of the Bauschinger effect in Al-Ge-Si alloys." Materials Science and Engineering: A 684 (January 2017): 353–72. http://dx.doi.org/10.1016/j.msea.2016.12.020.

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34

Poussard, C., M. J. Pavier, and D. J. Smith. "Analytical and finite element predictions of residual stresses in cold worked fastener holes." Journal of Strain Analysis for Engineering Design 30, no. 4 (October 1, 1995): 291–304. http://dx.doi.org/10.1243/03093247v304291.

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Two-dimensional finite element (FE) studies, for plane stress, plane strain and axisymmetric conditions, were conducted to simulate 4 per cent cold working of a 6.35 mm diameter hole in a 6 mm thick plate of 2024 T 351 aluminium alloy. The simulations were used to assess the influence of strain hardening, the role of reversed yielding and through-thickness residual stress distributions. Experiments were also conducted to determine the tensile and compressive stress-strain response of the aluminium alloy, revealing a pronounced Bauschinger effect and non-linear strain hardening in compression. The FE simulations and results from several earlier analytical models were compared and substantial differnces found in the region of reversed yielding. Approximations used to model the compressive deformation behaviour of the material overestimate the compressive residual stresses at the hole edge. From the axisymmetric FE model a residual stress gradient through the plate thickness was found. The plane stress and plane strain assumptions used in the earlier analytical models did not satisfactorily approximate the three-dimensional residual stress fields obtained from the FE simulations.

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Khvan, A. D., D. V. Khvan, and A. A. Voropaev. "Bauschinger Effect during the Plastic Forming of Ferrous Metals." Russian Metallurgy (Metally) 2021, no. 5 (May 2021): 640–42. http://dx.doi.org/10.1134/s0036029521050086.

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Merson, D. L., E. V. Vasil’ev, and A. Yu Vinogradov. "Quantitative Assessment of the Bauschinger Effect in Magnesium Alloys with the Asymmetry Effect." Inorganic Materials 54, no. 15 (December 2018): 1532–36. http://dx.doi.org/10.1134/s0020168518150141.

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Pourboghrat, F., K. Chung, and O. Richmond. "A Hybrid Membrane/Shell Method for Rapid Estimation of Springback in Anisotropic Sheet Metals." Journal of Applied Mechanics 65, no. 3 (September 1, 1998): 671–84. http://dx.doi.org/10.1115/1.2789110.

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A semi-analytical method to predict springback in sheet metal forming processes has been developed for the case of plane strain. In the proposed hybrid method, for each deformation increment, bending, and unbending stretches are analytically superposed on membrane stretches which are numerically obtained in advance from a membrane finite element code. Springback is then obtained by the unloading of a force and a bending moment at the boundary of each element treated as a shell. Hill’s 1948 yield criterion with normal anisotropy is used in this theory along with kinematic and isotropic hardening laws during reverse loading. The method has been applied for the springback prediction of a 2008-T4 aluminum alloy in plane-strain draw-bending tests. The results indicate the necessity of including anisotropic hardening (especially Bauschinger effects) and elastoplastic unloading in order to achieve good agreement with experimental results.

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Lee, Won Oh, Dae Yong Kim, June Hyung Kim, Kwan Soo Chung, and Seung Hyun Hong. "Analysis of Forming Process of Automotive Aluminum Alloys Considering Formability and Springback." Key Engineering Materials 345-346 (August 2007): 857–60. http://dx.doi.org/10.4028/www.scientific.net/kem.345-346.857.

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Formability and springback of the automotive aluminum alloy sheet, 6K21-T4, in the sheet forming process were numerically investigated utilizing the combined isotropic-kinematic hardening law based on the modified Chaboche model. To account for the anisotropic plastic behavior, the non-quadratic anisotropic yield stress potential, Yld2004-18p was considered. In order to characterize the mechanical properties, uni-axial tension tests were performed for the anisotropic yielding and hardening behavior, while uni-axial tension/compression tests were performed for the Bauschinger and transient behavior. The Erichsen test was carried out to partially obtain forming limit strains and FLD was also calculated based on the M-K theory to complete the FLD. The failure location during simulation was determined by comparing strains with FLD strains. For verification purposes, the automotive hood outer panel was stamped in real. After forming, the amount of draw-in, thinning and springback were measured and compared with numerical simulation results.

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Arsenault, R. J., and U. T. S. Pillai. "The bauschinger effect in a SiC/Al composite." Metallurgical and Materials Transactions A 27, no. 4 (April 1996): 995–1001. http://dx.doi.org/10.1007/bf02649767.

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Liao, S. H., P. W. Kao, and C. P. Chang. "The bauschinger effect in fine-grained AlTi alloys prepared by mechanical alloying." Scripta Materialia 36, no. 11 (June 1997): 1227–32. http://dx.doi.org/10.1016/s1359-6462(97)00022-5.

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NISHIYAMA, Daigo, Takeshi UEMORI, Naoya TADA, and Junji SAKAMOTO. "Analytical Study on Evaluation of Bauschinger Effect of Aluminum Sheet by L-bending Test." Proceedings of Conference of Chugoku-Shikoku Branch 2021.59 (2021): 02b5. http://dx.doi.org/10.1299/jsmecs.2021.59.02b5.

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Pommier and Bompard. "Bauschinger effect of alloys and plasticity-induced crack closure: a finite element analysis." Fatigue Fracture of Engineering Materials and Structures 23, no. 2 (February 2000): 129–39. http://dx.doi.org/10.1046/j.1460-2695.2000.00259.x.

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Kobayashi, Takumi, Kohshiroh Kitayama, Takeshi Uemori, and Fusahito Yoshida. "Description of Planer Anisotropy and Cyclic Plasticity Behavior of Aluminum Sheet Based on Crystal Plasticity Theory." Applied Mechanics and Materials 117-119 (October 2011): 1397–401. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.1397.

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In sheet metal forming, the anisotropy and the Bauschinger effect of sheets affect greatly their formability. This paper discusses how the planar anisotropy and cyclic plastic behavior (the Bauschnger effect and cyclic workhardening characteristics) correlate with the crystallographic texture based on the crystal plasticity analysis on A5052-O sheet. The analytical predictions of r-values and the cyclic stress-strain responses are compared with the experimental observations (S. Tamura et al., Materials Trans, 52-5 (2011), pp.868-875).

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Pokoev, A. V., J. V. Osinskaya, S. G. Shakhbanova, and K. S. Yamtshikova. "The Magnetoplastic Effect in Aluminum Alloys." Bulletin of the Russian Academy of Sciences: Physics 82, no. 7 (July 2018): 870–73. http://dx.doi.org/10.3103/s106287381807033x.

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Ma, M. T., B. Z. Sun, and Y. Tomota. "Bauschinger effect and back stress in a dual phase steel." ISIJ International 29, no. 1 (1989): 74–77. http://dx.doi.org/10.2355/isijinternational.29.74.

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Kostryzhev, A. G., M. Strangwood, and C. L. Davis. "Bauschinger effect in Nb and V alloyed line-pipe steels." Ironmaking & Steelmaking 36, no. 3 (April 2009): 186–92. http://dx.doi.org/10.1179/174328109x401532.

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Sun, Qingqing, Haizheng Zhang, Huabing Li, and Shuai Wang. "Influence of near-surface dislocation cellular structure on Bauschinger effect." Journal of Materials Research and Technology 13 (July 2021): 2012–15. http://dx.doi.org/10.1016/j.jmrt.2021.06.010.

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Harjo, Stefanus, Yo Tomota, Dimitar Neov, Petr Lukas, Miroslav Vrana, and Pavel Mikula. "Bauschinger Effect in .ALPHA.-.GAMMA. Dual Phase Alloys Studied by In Situ Neutron Diffraction." ISIJ International 42, no. 5 (2002): 551–57. http://dx.doi.org/10.2355/isijinternational.42.551.

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Roy, Siddhartha, Jens Gibmeier, Vladimir Kostov, Kay André Weidenmann, Alwin Nagel, and Alexander Wanner. "Load Partitioning Study in a 3D Interpenetrating AlSi12/Al₂O₃ Metal/Ceramic Composite." Materials Science Forum 772 (November 2013): 103–7. http://dx.doi.org/10.4028/www.scientific.net/msf.772.103.

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Internal load transfer in an interpenetrating metal/ceramic composite has been studied in this work using energy dispersive synchrotron X-ray diffraction. One of the samples was loaded in tension and the other one in compression. In each case, the sample was first loaded into the elastic-plastic regime, unloaded to zero stress, and reloaded beyond the prior maximum stress. Results show that at stress amounts greater than 100 MPa aluminum deforms plastically and the load is transferred to alumina and silicon. Unloading and reloading typically show reverse plastic deformation, Bauschinger effect and strain hardening in aluminum.

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Chen, Zhongchun, Syuji Maekawa, and Takenobu Takeda. "Bauschinger effect and multiaxial yield behavior of stress-reversed mild steel." Metallurgical and Materials Transactions A 30, no. 12 (December 1999): 3069–78. http://dx.doi.org/10.1007/s11661-999-0217-3.

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