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Journal articles on the topic 'Multilinear Kinematic Hardening Curves'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Venkata, Sai Prashanth Sudula. "Multilinear Isotropic and Multilinear Kinematic Hardening on AZ31 Magnesium Alloy." International Journal of Engineering and Advanced Technology (IJEAT) 10, no. 5 (2021): 259–68. https://doi.org/10.35940/ijeat.E2790.0610521.

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Magnesium and its alloys are turning out to be increasingly more utilized in the aviation and automobile industry due to its low weight. The technology has endured numerous enhancements enabling magnesium alloys to have a mechanical performance close to aluminium alloys and prevention from corrosion. This enables numerous potential applications for magnesium alloys subjected to multiaxial fatigue. To perform the plastic deformation on AZ31 alloy, we have utilised two techniques of multilinear hardening methods. i) isotropic hardening, ii) Kinematic hardening. To come up with an accurate result

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2

Sudula, Venkata Sai Prashanth. "Multilinear Isotropic and Multilinear Kinematic Hardening on AZ31 Magnesium Alloy." International Journal of Engineering and Advanced Technology 10, no. 5 (2021): 259–68. http://dx.doi.org/10.35940/ijeat.e2790.0610521.

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Magnesium and its alloys are turning out to be increasingly more utilized in the aviation and automobile industry due to its low weight. The technology has endured numerous enhancements enabling magnesium alloys to have a mechanical performance close to aluminium alloys and prevention from corrosion. This enables numerous potential applications for magnesium alloys subjected to multiaxial fatigue. To perform the plastic deformation on AZ31 alloy, we have utilised two techniques of multilinear hardening methods. i) isotropic hardening, ii) Kinematic hardening. To come up with an accurate result

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3

Amalia, Aniendhita Rizki, and Kenshi Ochi. "Kinematic Hardening Model Comparison of Square Hollow Section Under Cyclic Bending." Applied Research on Civil Engineering and Environment (ARCEE) 3, no. 02 (2022): 88–103. http://dx.doi.org/10.32722/arcee.v3i02.4530.

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This study compares the different linearity of the kinematic hardening model of the Square Hollow Section (SHS) under cyclic bending loading. Four specimens of a simple support beam cyclically tested in previous research are listed as hot-rolled, hot-finished, and two cold-formed. Using the bilinear, multilinear, and Chaboche models, each specimen is modeled in kinematic hardening. The variables or node sets for each linearity model are estimated using tensile test data, and Chaboche variables are obtained using the least-square fitting method. Each linearity model for each specimen is built-i

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Josefson, B. L., U. Stigh, and H. E. Hjelm. "A Nonlinear Kinematic Hardening Model for Elastoplastic Deformations in Grey Cast Iron." Journal of Engineering Materials and Technology 117, no. 2 (1995): 145–50. http://dx.doi.org/10.1115/1.2804521.

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A kinematic hardening model including an associated flow rule is proposed for elastoplastic deformations in graphitic grey cast iron. Quantitatively good results are obtained when comparing with previously performed biaxial experiments. Use of a nonassociated flow rule is found to result in an undesirable weakening behavior that can be explained as a deficiency with the combination of kinematic hardening and the present choice of yield potential. The model proposed is also extended to include multilinear kinematic hardening. With this model qualitatively good agreement with experimental cyclic

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Zhang, Meijuan, Jose María Benítez, and Francisco Javier Montáns. "Capturing yield surface evolution with a multilinear anisotropic kinematic hardening model." International Journal of Solids and Structures 81 (March 2016): 329–36. http://dx.doi.org/10.1016/j.ijsolstr.2015.11.030.

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6

Lu, Chao, Yong Lin Kang, and Guo Ming Zhu. "Effect of Nonlinear Kinematic Hardening Model on Draw-Bend Springback Behavior of Dual Phase Steel." Advanced Materials Research 538-541 (June 2012): 448–52. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.448.

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The aim of this study is to evaluate the effects of two nonlinear kinematic hardening models on springback prediction of dual phase steel. Young’s modulus degradation with plastic strain was also considered. Material parameters of both hardening models were identified by fitting the experimental tension-compression-tension stress-strain curves using optimization software LS-OPT. The results showed that the nonlinear kinematic hardening models gave good prediction compared with measured data. And a 2-D draw-bend springback benchmark was applied to assess the material models with identified para

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Sanomura, Yukio, and Mamoru Mizuno. "Viscoplastic Constitutive Equation of High-Density Polyethylene." Key Engineering Materials 340-341 (June 2007): 1097–102. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.1097.

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A viscoplastic constitutive equation based on the kinematic hardening creep theory of Malinin-Khadjinsky and the nonlinear kinematic hardening rule of Armstrong-Frederick is formulated to describe the inelastic behavior of high-density polyethylene under various loading. The gentle progress of back stress by the introduction of loading surface in the viscoplastic strain space and smaller material constant under unloading can be expressed. Material constants are identified by various stress-strain curves under compression at constant strain rate and creep curves under compression at constant st

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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 (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 appli

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KOBAYASHI, Mineo, and Nobutada OHNO. "314 Fully Implicit Integration for a Plasticity Model Based on Multilinear Kinematic Hardening Rule : Temperature Dependencies and Cyclic Hardening." Proceedings of Conference of Tokai Branch 2000.49 (2000): 159–60. http://dx.doi.org/10.1299/jsmetokai.2000.49.159.

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Ngo, Van-Linh, Changho Lee, Eun-haeng Lee, and Jae-Min Kim. "Semi-Automated Procedure to Estimate Nonlinear Kinematic Hardening Model to Simulate the Nonlinear Dynamic Properties of Soil and Rock." Applied Sciences 11, no. 18 (2021): 8611. http://dx.doi.org/10.3390/app11188611.

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The strain-dependent nonlinear properties of ground materials, such as shear modulus degradation (G/Gmax) and damping, are of significant importance in seismic-related analyses. However, the ABAQUS program lacks a comprehensive procedure to estimate parameters for a built-in model. In this study, a nonlinear kinematic hardening (NKH) model with three back-stress values was used, which allows better fitting to the backbone curves compared to the simplified nonlinear kinematic hardening (SNKH) model previously proposed. Instead of modeling in ABAQUS, a semi-automated procedure was implemented in

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Saleh Asheghabadi, Mohsen, Wenchang Shang, Junwei Liu, et al. "Seismic Behavior of Pile Group Foundations in Soft Clay: Insights from Nonlinear Numerical Modeling." Infrastructures 10, no. 6 (2025): 134. https://doi.org/10.3390/infrastructures10060134.

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Pile foundations are commonly used to support structures subjected to complex loading conditions. In seismic-prone regions, understanding the soil–pile interaction under cyclic loading is essential for ensuring the stability and safety of these foundations. Numerical modeling is an effective tool for predicting the nonlinear behavior of soil under seismic excitation, but selecting an appropriate constitutive model remains a significant challenge. This study investigates the seismic behavior of pile groups embedded in soft clay using advanced finite element analysis. The piles are modeled as al

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12

Paygozar, Bahman, S. A. Dizaji, and M. A. Saeimi Sadigh. "Combined hardening parameters of steel CK45 under cyclic strain-controlled loading: Calibration methodology and numerical validation." Journal of Mechanical Engineering and Sciences 14, no. 2 (2020): 6848–55. http://dx.doi.org/10.15282/jmes.14.2.2020.24.0536.

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This study is to indicate the methodology of investigating the behavior of materials in the plastic domain while bearing cyclic loading i.e. low cycle fatigue. Materials under such loading, which experience huge amount of plastic deformation, are affected by the hardening or softening effects of loading which should be taken into account in all applications and numerical simulations as well. This work investigates the methodology of obtaining the nonlinear isotropic and kinematic hardening of steel CK45. To find the parameters of the above mentioned combined nonlinear isotropic/kinematic harde

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Sanrutsadakorn, Apichat, Winai Lawong, and Weerapong Julsri. "Numerical Study of Predicting Forming Process Based on Different Hardening Models in Advanced High Strength Steel Sheets." Key Engineering Materials 951 (August 7, 2023): 21–32. http://dx.doi.org/10.4028/p-g0pkwh.

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Sheet metal shaping for advanced high strength (AHS) steel sheets is commonly utilized in the manufacturing of automobile components. This helps to decrease the weight of new structures and increase the crashworthiness performance of these structures. The phenomenon known as springback deviation plays a significant role in creating such components via deformation and fracture. This study investigated the production of an S-rail from components made of steel grade 780 with a thickness of 1 millimeter by employing appropriate simulations using finite elements (FE) and generation. The materials w

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14

Wang, Yuanqing, and Zhongxing Wang. "Experimental Investigation and FE Analysis on Constitutive Relationship of High Strength Aluminum Alloy under Cyclic Loading." Advances in Materials Science and Engineering 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/2941874.

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Experiments of 17 high strength aluminum alloy (7A04) specimens were conducted to investigate the constitutive relationship under cyclic loading. The monotonic behavior and hysteretic behavior were focused on and the fracture surface was observed by scanning electron microscope (SEM) to investigate the microfailure modes. Based on Ramberg-Osgood model, stress-strain skeleton curves under cyclic loading were fitted. Parameters of combined hardening model including isotropic hardening and kinematic hardening were calibrated from test data according to Chaboche model. The cyclic tests were simula

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Zhao, K. M., and J. K. Lee. "Material Properties of Aluminum Alloy for Accurate Draw-Bend Simulation." Journal of Engineering Materials and Technology 123, no. 3 (2001): 287–92. http://dx.doi.org/10.1115/1.1370371.

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The main objective of this paper is to simulate springback using a combined kinematic/isotropic hardening model. Material parameters in the hardening model are identified by an inverse method. A three-point bending test is conducted on 6022-T4 aluminum sheet. Punch stroke, punch load, bending strain, and bending angle are measured directly during the tests. Bending moments are then computed from these measured data. Bending moments are also calculated based on a constitutive model. Material parameters are identified by minimizing the normalized error between two bending moments. A micro geneti

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16

Servatan, M., S. M. Hashemi, and A. Varvani-Farahani. "Ratcheting–Fatigue Damage Assessment of Additively Manufactured SS304L and AlSi10Mg Samples under Asymmetric Stress Cycles." Metals 13, no. 9 (2023): 1534. http://dx.doi.org/10.3390/met13091534.

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The present study aims to investigate the interaction of ratcheting and fatigue phenomena for additively manufactured (AM) samples of SS304L and AlSi10Mg undergoing uniaxial asymmetric stress cycles. Overall damage was accumulated through fatigue and ratcheting on AM samples prepared from three-dimensional-printed plates along vertical and horizontal directions. Fatigue damage was evaluated based on the strain energy density fatigue approach and ratcheting damage was calculated through use of an isotropic–kinematic hardening framework. The isotropic description through the Lee–Zavrel (L–Z) mod

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Wójcik, Marta, and Andrzej Skrzat. "The application of Chaboche model in uniaxial ratcheting simulations." Advances in Manufacturing Science and Technology 44, no. 2 (2020): 57–61. http://dx.doi.org/10.2478/amst-2019-0010.

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AbstractThis article presents the application of Chaboche nonlinear kinematic hardening model in simulations of uniaxial ratcheting. First, the symmetrical strain-controlled cyclic tension/compression tests for PA6 aluminum samples were done. Using the experimental stress–strain curve, initial material hardening parameters were determined by the ABAQUS software. The experimental curve was compared with the numerical one. For better fitting of both curves, the optimization procedure based on the least-square method was applied. Using the determined hardening parameters, numerical simulations of

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18

Joo, Geun Su, and Hoon Huh. "Rate-Dependent Material Parameters of the Combined Isotropic/Kinematic Hardening Model for the TRIP980 Steel Sheet." Key Engineering Materials 725 (December 2016): 132–37. http://dx.doi.org/10.4028/www.scientific.net/kem.725.132.

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This paper is concerned with rate-dependent hardening behaviors of the TRIP980 steel sheet. In sheet metal forming, sheet metals experiences complicated loading at various strain rates. In order to predict deformed shape in sheet metal forming, accurate material properties and an appropriate constitutive model in numerical simulation are important to consider reverse loading and various strain rates simultaneously.This paper deals with rate-dependent material parameters of the isotropic/kinematic hardening model. Tension/compression tests of the TRIP980 steel sheet are performed with a newly d

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19

Frydrych, Karol, Maciej Tomczak, and Stefanos Papanikolaou. "Crystal Plasticity Parameter Optimization in Cyclically Deformed Electrodeposited Copper—A Machine Learning Approach." Materials 17, no. 14 (2024): 3397. http://dx.doi.org/10.3390/ma17143397.

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This paper describes an application of a machine learning approach for parameter optimization. The method is demonstrated for the elasto-viscoplastic model with both isotropic and kinematic hardening. It is shown that the proposed method based on long short-term memory networks allowed a reasonable agreement of stress–strain curves to be obtained for cyclic deformation in a low-cycle fatigue regime. The main advantage of the proposed approach over traditional optimization schemes lies in the possibility of obtaining parameters for a new material without the necessity of conducting any further

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20

Tong, Van-Canh, and Duc-Toan Nguyen. "A study on spring-back in U-draw bending of DP350 high-strength steel sheets based on combined isotropic and kinematic hardening laws." Advances in Mechanical Engineering 10, no. 9 (2018): 168781401879743. http://dx.doi.org/10.1177/1687814018797436.

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In this article, a numerical model for predicting spring-back in U-draw bending of DP350 high-strength steel sheet was presented. First, the hardening models were formulated based on combined isotropic–kinematic hardening laws, along with the traditional pure isotropic and kinematic hardening laws. A simplified method was proposed for determining the material parameters. Comparison of stress–strain curves of uniaxial tests at various pre-strains predicted by the numerical models and experiment showed that the combined isotropic–kinematic hardening model could accurately describe the Bauschinge

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21

Cianetti, Filippo, Claudio Braccesi, and Maria Cristina Valigi. "Numerical Modelling and Simulation of the Hot Rolling Mill Process." Advanced Engineering Forum 15 (February 2016): 64–74. http://dx.doi.org/10.4028/www.scientific.net/aef.15.64.

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In the design of the rolling mill plants, it is fundamental to study the behaviour of the deformation process to assess the main process variables (such as torque and rolling force) in all operating conditions.In this paper, a finite element model is developed and the numerical simulations of the plastic deformation process, in the hot rolling mill of AISI 304 stainless steel, are shown. In the proposed model a Multilinear Isotropic Hardening behaviour of material has been assumed and true stress-true strain curves have been found, taking into account temperature and strain rate. Numerical res

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Zhao, K. M., and J. K. Lee. "Generation of Cyclic Stress-Strain Curves for Sheet Metals." Journal of Engineering Materials and Technology 123, no. 4 (2000): 391–97. http://dx.doi.org/10.1115/1.1395021.

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The main objective of this paper is to obtain the first few stress-strain loops of sheet metals from reverse loading so that the springback can be simulated accurately. Material parameters are identified by an inverse method within a selected constitutive model that represents the hardening behavior of materials subjected to a cyclic loading. Three-point bending tests are conducted on sheet steels (mild steel and high strength steel). Punch stroke, punch load, bending strain, and bending angle are measured directly during the tests. Bending moments are then computed from these measured data. B

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23

Kiliclar, Yalin, Marcus Engelhardt, Ivaylo N. Vladimirov, et al. "On the Improvement of Formability and the Prediction of Forming Limit Diagrams at Fracture by Means of Constitutive Modelling." Key Engineering Materials 504-506 (February 2012): 29–34. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.29.

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Sheet metal forming processes are well-established in production technology for the manufacturing of large quantities. To increase the formability, the processing limit of a single forming process can be enhanced by a combination of quasi-static and high-speed forming process. The forming limits for both operations for the aluminum alloy EN AW 6082 T6 obtained via simulations and experiment are investigated in a research cooperation between the Institute of Materials Science (IW) and the Institute of Applied Mechanics (IFAM). Significant changes in forming limits with higher strain rates are i

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Brunet, M., F. Morestin, and S. Godereaux. "Nonlinear Kinematic Hardening Identification for Anisotropic Sheet Metals With Bending-Unbending Tests." Journal of Engineering Materials and Technology 123, no. 4 (2000): 378–83. http://dx.doi.org/10.1115/1.1394202.

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An inverse identification technique is proposed based on bending-unbending experiments on anisotropic sheet-metal strips. The initial anisotropy theory of plasticity is extended to include the concept of combined isotropic and nonlinear kinematic hardening. This theory is adopted to characterize the anisotropic hardening due to loading-unloading which occurs in sheet-metals forming processes. To this end, a specific bending-unbending apparatus has been built to provide experimental moment-curvature curves. The constant bending moment applied over the length of the specimen allows one to determ

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Nagentrau, Muniandy, Waluyo Adi Siswanto, and Abdul Latif Mohd Tobi. "Investigation on the Effect of Linear Kinematic Hardening Model on Plasticity Prediction of Reciprocating Sliding Contact." Applied Mechanics and Materials 773-774 (July 2015): 183–87. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.183.

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This paper discusses a finite element analysis of cylinder on flat contact configuration subjected to constant normal load and reciprocating tangential displacement with linear kinematic hardening models based on bi-modal Ti-6Al-4V cyclic stress-strain curves. The predicted evolution of plastic deformation such as the equivalent plastic strain, tangential plastic strain and shear plastic strain distributions on the contact region has been studied along with its respective predicted stress distributions. The effect of applied forward and backward sliding displacement movements on predicted stre

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Jiang, Nan, and Hui Fang Zhao. "Research on Horizontal Displacement and Torsion Coupling Effect of Structure-Soil System." Applied Mechanics and Materials 275-277 (January 2013): 1107–10. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1107.

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In this paper, the vibration equation of the structure-soil nonlinear interaction system was qualitatively analyzed by using the modern dynamic theory. Based on the multilinear kinematic hardening mode, the nonlinear finite element method was applied for the solution of the horizontal and torsional stiffness between the foundation and soil interaction system. And a mechanical model of the structure-soil nonlinear interaction system was established. The Lagrange energy method is used to build the coupling vibration equation of the structural horizontal displacement and torsion. The Primary reso

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Lee, Keum Oh, Seong Gu Hong, and Soon Bok Lee. "A Novel Description of Thermomechanical Behavior Using a Rheological Model." Key Engineering Materials 306-308 (March 2006): 205–10. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.205.

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Isothermal cyclic stress-strain deformation and thermomechanical deformation (TMD) of 429EM stainless steel were analyzed using a rheological model employing a bi-linear model. The proposed model was composed of three parameters: elastic modulus, yield stress and flow stress. Monotonic stress-strain curves at various temperatures were used to construct the model. The yield stress in the model was nearly same as 0.2% offset yield stress. Hardening relation factor, m, was proposed to relate cyclic hardening to kinematic hardening. Isothermal cyclic stress-strain deformation could be described we

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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 (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 comp

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Sajjad, Hafiz Muhammad, Stefanie Hanke, Sedat Güler, Hamad ul Hassan, Alfons Fischer, and Alexander Hartmaier. "Modelling Cyclic Behaviour of Martensitic Steel with J2 Plasticity and Crystal Plasticity." Materials 12, no. 11 (2019): 1767. http://dx.doi.org/10.3390/ma12111767.

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In order to capture the stress-strain response of metallic materials under cyclic loading, it is necessary to consider the cyclic hardening behaviour in the constitutive model. Among different cyclic hardening approaches available in the literature, the Chaboche model proves to be very efficient and convenient to model the kinematic hardening and ratcheting behaviour of materials observed during cyclic loading. The purpose of this study is to determine the material parameters of the Chaboche kinematic hardening material model by using isotropic J2 plasticity and micromechanical crystal plastic

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Arda Akşen, Toros, Emre Esener, and Mehmet Firat. "Characterizing the mechanical deformation response of AHSS steels: A comparative study of cyclic plasticity models under monotonic and reversal loading." Revista de Metalurgia 59, no. 4 (2024): e251. http://dx.doi.org/10.3989/revmetalm.251.

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This study evaluates the performance of a user-defined combined hardening modeling method for advanced high-strength steels (AHSS) under monotonic and reversal loading conditions. The plastic behavior of TWIP980 and TRIP980 AHSS sheet metals is investigated using a cyclic plasticity modeling approach. The model incorporates an isotropic von Mises yield criterion and a single-term Chaboche nonlinear kinematic hardening rule. Monotonic and reversal loading stress-strain curves are predicted and compared with experimental results. The model accurately captured the Bauschinger effect for both mate

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31

Hatami, F., and A. Varvani-Farahani. "Local Ratcheting at the Notch Region of Non-Press-Fitted and Press-Fitted Al 7075-T6 Samples Undergoing Asymmetric Stress Cycles." Metals 13, no. 9 (2023): 1549. http://dx.doi.org/10.3390/met13091549.

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The present study evaluated the ratcheting response of notched and press-fitted Al 7075-T6 specimens under stress-controlled asymmetric cycles. The degree of the interference fit (DIF) directly influenced the magnitude and the rate of progressive plastic strain at the notch edge region. Local ratcheting at the hole–pin interference region was analyzed by means of two kinematic-hardening rules—the Ahmadzadeh–Varvani (A–V) rule and the Chaboche rule—coupled with the Neuber rule. Ratcheting strains at the notch root of aluminum samples with DIF = 0 (non-press-fitting samples) were measured and fo

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Qu, Feijun, Zhengyi Jiang, Xiaogang Wang, and Cunlong Zhou. "Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials." Advances in Materials Science and Engineering 2018 (November 15, 2018): 1–14. http://dx.doi.org/10.1155/2018/5287945.

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This paper presents a constitutive modelling of the polycrystalline thin metal strip under a state of combined loading in microflexible rolling. The concept of grained inhomogeneity is incorporated into the classic Chaboche hardening model that accounts for the Bauschinger effect, in order to provide more precise description and analysis of the springback mechanism in the particular forming operation. The model is first implemented in the finite element program ABAQUS to numerically predict the stress-strain relationship of 304 stainless steel specimens over a range of average grain sizes. Aft

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Déprés, Christophe, Christian F. Robertson, Marc Fivel, and Suzanne Degallaix. "A Three Dimensional Discrete Dislocation Dynamics Analysis of Cyclic Straining in 316L Stainless Steel." Materials Science Forum 482 (April 2005): 163–66. http://dx.doi.org/10.4028/www.scientific.net/msf.482.163.

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The early stages of the formation of dislocation microstructures in low strain fatigue are analysed,using three-dimensional discrete dislocation dynamics modelling (DDD). A detailed analysis of the simulated microstructures provide a detailed scheme for the persistent slip band formation, emphasizing the crucial role of cross-slip for both the initial strain spreading inside of the grain and for the subsequent strain localization in the form of slip bands. A new ad-hoc posttreatment tool evaluates the surface roughness as the cycles proceed. Slip markings and their evolutions are analysed, in

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Liu, Zongcheng, Jianping Han, and Penghui Yang. "Low-Cycle Fatigue Behavior and the Combined Cyclic Hardening Material Model of Plate-Shaped Zn-22Al Alloy for Seismic Dampers." Materials 17, no. 9 (2024): 2141. http://dx.doi.org/10.3390/ma17092141.

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This study investigates the potential of the plate-shaped Zn-22 wt.% Al (Zn-22Al) alloy as an innovative energy dissipation material for seismic damping devices, since plate-shaped material is more suitable to fabricate large-scale devices for building structures. The research begins with the synthesis of Zn-22Al alloy, given its unavailability in the commercial market. Monotonic tensile tests and low-cycle fatigue tests are performed to analyze material properties and fatigue performance of plate-shaped specimens. Monotonic tensile curves and cyclic stress–strain curves, along with SEM microg

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Moslemi, Navid, Mohsen Gol Zardian, Amran Ayob, Norizah Redzuan, and Sehun Rhee. "Evaluation of Sensitivity and Calibration of the Chaboche Kinematic Hardening Model Parameters for Numerical Ratcheting Simulation." Applied Sciences 9, no. 12 (2019): 2578. http://dx.doi.org/10.3390/app9122578.

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Ratcheting failure of materials and structures subjected to low cycle fatigue in the presence of significant mean stress is of great interest to researchers. In this experimental and numerical study, the response of 316L stainless steel samples was observed in symmetric strain control uniaxial test followed by post-stabilized monotonic test, uniaxial and biaxial ratcheting tests, in order to determine the Chaboche model parameters and to evaluate ratcheting prediction using finite element analysis. The critical elastic limit was initially obtained from incremental uniaxial cyclic tests. The Ch

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Kartal, M. E. "Three-dimensional earthquake analysis of roller-compacted concrete dams." Natural Hazards and Earth System Sciences 12, no. 7 (2012): 2369–88. http://dx.doi.org/10.5194/nhess-12-2369-2012.

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Abstract. Ground motion effect on a roller-compacted concrete (RCC) dams in the earthquake zone should be taken into account for the most critical conditions. This study presents three-dimensional earthquake response of a RCC dam considering geometrical non-linearity. Besides, material and connection non-linearity are also taken into consideration in the time-history analyses. Bilinear and multilinear kinematic hardening material models are utilized in the materially non-linear analyses for concrete and foundation rock respectively. The contraction joints inside the dam blocks and dam–foundati

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Hashemi, Ehsan, and Behrooz Farshi. "FINITE ELEMENT BASED ELASTO-PLASTIC ANALYSIS OF CLASSICAL AND FIRST ORDER BEAMS WITH ARMSTRONG–FREDERICK KINEMATIC HARDENING MODEL." Transactions of the Canadian Society for Mechanical Engineering 38, no. 1 (2014): 1–14. http://dx.doi.org/10.1139/tcsme-2014-0001.

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This investigation is focused on the elasto-plastic behavior of classical and first order Timoshenko beams by a finite element formulation under two major kinematic hardening models. The approach consists of proposing a finite element formulation with variable stiffness matrix and optimized solution for the Armstrong–Frederick theory together with the Ziegler–Prager model under cyclic flexural and deformation controlled loading conditions. In symmetrical cyclic deformation and flexural controlled states of the first order beams, it was concluded that after several cycles, the total stress-stra

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Li, J., and M. Ostoja-Starzewski. "Fractals in elastic-hardening plastic materials." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 466, no. 2114 (2009): 603–21. http://dx.doi.org/10.1098/rspa.2009.0308.

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Plastic grains are found to form fractal patterns in elastic-hardening plastic materials in two dimensions, made of locally isotropic grains with random fluctuations in plastic limits or elastic/plastic moduli. The spatial assignment of randomness follows a strict-white-noise random field on a square lattice aggregate of square-shaped grains, whereby the flow rule of each grain follows associated plasticity. Square-shaped domains (comprising 256×256 grains) are loaded through either one of three macroscopically uniform boundary conditions admitted by the Hill–Mandel condition. Following an evo

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Lukhi, Mehul, Meinhard Kuna, and Geralf Hütter. "Characterising Fatigue Behaviour of Nodular Cast Iron Using Micromechanical Simulations." MATEC Web of Conferences 300 (2019): 13002. http://dx.doi.org/10.1051/matecconf/201930013002.

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Elastic-plastic porous materials experience an increase in the mean void volume fraction when they are subjected to cyclic loading. This behavior is known both from the experiments and simulations in the literature. The authors have first time used this mechanism for the evaluation of the fatigue life in nodular cast iron. In this contribution, the stress-life approach is presented for the characterization of fatigue failure. For this purpose, micromechanical finite-element simulations are carried out using the axisymmetric cell model. The cell model having isotropic/non-linear kinematic harde

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HE, Yuxin, and Yu'e MA. "The viscoplastic constitutive model of TC4 alloy under high temperature." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 41, no. 1 (2023): 65–72. http://dx.doi.org/10.1051/jnwpu/20234110065.

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TC4 alloy is widely used in the high temperature environment. This paper proposed an ununified viscoplastic constitutive model according to the uniaxial creep experiment and high temperature tensile experiment of TC4 alloy. The inelastic strain rate was decomposed into two parts: creep strain rate and plastic strain rate. The creep strain was calculated by multiaxial ductility exhaustion creep damage law, and the plastic strain was get from the yield function containing the damage and the kinematic hardening effect. The implicit stress integration algorithm and the consistent tangent modulus o

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Hashemi, Ehsan, Mani Sharifi, and Behrooz Farshi. "FEM Modeling of Beams Cyclic Loading Based on Ziegler-Prager and Armstrong-Frederick Kinematic Hardening Models." Applied Mechanics and Materials 110-116 (October 2011): 2838–46. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2838.

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In this investigation the behavior of classical beams are simulated by a finite element formulation of the plasticity problem under two major kinematic hardening models. Complete formulation is presented for both load and deformation controlled cases. The proposed finite element formulation uses a variable stiffness matrix in each incremental step reflecting the yield surface movement. Examples are worked out for both the Ziegler-Prager and the Armstrong-Frederick theories, to show the stress-strain behavior under cyclic symmetric and asymmetric flexural loading. The results have been graphica

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Frerichs, F., Th Lübben, U. Fritsching, et al. "Simulation of gas quenching." Journal de Physique IV 120 (December 2004): 727–35. http://dx.doi.org/10.1051/jp4:2004120084.

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The prediction of mechanical behaviour of specimen during heat treatment by means of numerical simulation requires numerous modules e.g. for heat transfer and mechanical behaviour. The quality of predictions depend on the quality of the applied models within the modules. In this paper the strain hardening model used in the mechanical module will be investigated. For simulation of mechanical behaviour during gas quenching it is first of all necessary to calculate the interaction between gas and specimen. Using simulated flow field and temperature distribution within the gas, the heat transfer c

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Guan, Peng, Yanting Ai, Chengwei Fei, and Yudong Yao. "Thermal Fatigue Life Prediction of Thermal Barrier Coat on Nozzle Guide Vane via Master–Slave Model." Applied Sciences 9, no. 20 (2019): 4357. http://dx.doi.org/10.3390/app9204357.

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The aim of this paper was to develop a master–slave model with fluid-thermo-structure (FTS) interaction for the thermal fatigue life prediction of a thermal barrier coat (TBC) in a nozzle guide vane (NGV). The master–slave model integrates the phenomenological life model, multilinear kinematic hardening model, fully coupling thermal-elastic element model, and volume element intersection mapping algorithm to improve the prediction precision and efficiency of thermal fatigue life. The simulation results based on the developed model were validated by temperature-sensitive paint (TSP) technology.

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Sajjad, Hafiz Muhammad, Hamad ul Hassan, Matthias Kuntz, Benjamin J. Schäfer, Petra Sonnweber-Ribic, and Alexander Hartmaier. "Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation." Materials 13, no. 14 (2020): 3126. http://dx.doi.org/10.3390/ma13143126.

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The application of instrumented indentation to assess material properties like Young’s modulus and microhardness has become a standard method. In recent developments, indentation experiments and simulations have been combined to inverse methods, from which further material parameters such as yield strength, work hardening rate, and tensile strength can be determined. In this work, an inverse method is introduced by which material parameters for cyclic plasticity, i.e., kinematic hardening parameters, can be determined. To accomplish this, cyclic Vickers indentation experiments are combined wit

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Kibets, A. I., and M. V. Bezhentseva. "ANALYSIS OF FINITE ELEMENT SOLUTION CONSERVATIVE SMOOTHING INFLUENCE ON THE ZERO ENERGY MODES SUPPRESSION." Problems of strenght and plasticity 83, no. 1 (2021): 101–10. http://dx.doi.org/10.32326/1814-9146-2021-83-1-101-110.

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The problem of high-speed penetration of a non-deformable cylinder into a steel plate is considered. The defining system of equations is formulated in Lagrange variables in a three-dimensional formulation. The equation of motion is derived from virtual work capacities balance. Kinematic relations are recorded in the metric of the current state. The relations of the flow theory with kinematic and isotropic hardening are used as equations of state. The contact interaction of the cylinder and the plate is modeled by non-penetration conditions. The numerical solution of the problem under given bou

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Luo, Silin, Gang Yang, Yanshan Lou, and Yongqian Xu. "Prediction of Strain Path Changing Effect on Forming Limits of AA 6111-T4 Based on a Shear Ductile Fracture Criterion." Metals 11, no. 4 (2021): 546. http://dx.doi.org/10.3390/met11040546.

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Strain path changing is a phenomenon in the stamping of complex panels or multiple-step stamping processes. In this study, the influence of the strain path changing effect was investigated and assessed for an aluminum alloy of 6111-T4 with a shear ductile fracture criterion. Plastic deformation of the alloy was modeled by an anisotropic Drucker yield function with the assumption of normal anisotropy. Then the shear ductile fracture criterion was calibrated by the fracture strains at uniaxial tension, plane strain tension and equibiaxial tension under proportional loading conditions. The calibr

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Modin, I. A., A. V. Kochetkov, and E. Yu Poverennov. "NUMERICAL AND EXPERIMENTAL STUDY NONLINEAR COMPRESSION PACKAGES OF METAL MESHS." Problems of Strength and Plasticity 84, no. 2 (2022): 236–46. http://dx.doi.org/10.32326/1814-9146-2022-84-2-236-246.

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The results of numerical simulation of elastoplastic compression of symmetrical fragments of a package of woven steel meshes are presented. The thickness of the symmetrical fragment is one and two layers. The study was carried out under dynamic loading conditions in the ANSYS LS-DYNA computer system. The mesh package is formed by superimposing layers on top of each other while maintaining the direction of the wires. The packet has a quasi-periodic structure; therefore, symmetrical fragments can be distinguished. For two mesh layers, a fragment is accepted, taking into account the shift of the

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Li, Yunli, Lugi Wang, Jiawei Li, and Wenping Wu. "An elastoplastic constitutive model of lunar soil simulant considering shear dilatancy and softening characteristics." Stavební obzor - Civil Engineering Journal 33, no. 1 (2024): 35–49. http://dx.doi.org/10.14311/cej.2024.01.0003.

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The study of the constitutive relationship of lunar soil is the key to a deep understanding of the mechanical properties of lunar soil and the subsequent construction of lunar bases. Previous models mostly focused on the strengthening behavior before the peak, while rarely reflected the post-peak softening and residual deformation stages during shear deformation. A new elastoplastic constitutive relation is derived with combining kinematic hardening model and initial shear stress, which effectively compensates for the shortcomings of existing constitutive models, and the validity of the model

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Silvestre, Elena, Eneko Sáenz de Argandoña, Lander Galdos, and Joseba Mendiguren. "Comparison of Three Methods for Material Hardening Parameter Identification under Cyclic Tension-Compression Loadings: Roll Levelling Case Study." Key Engineering Materials 651-653 (July 2015): 957–62. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.957.

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The roll levelling is a forming process used to remove the residual stresses and imperfections of metal strips by means of plastic deformations. The process is especially important to avoid final geometrical errors when coils are cold formed or when thick plates are cut by laser. In the last years, and due to the appearance of high strength materials such as Ultra High Strength Steels, machine design engineers are demanding a reliable tool for the dimensioning of the levelling facilities. In response to this demand, Finite Element Analysis is becoming an important technique able to lead engine

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Krobath, Martin, Roman Krobath, Christian Bernhard, and Werner Ecker. "Elasto-Viscoplastic Material Model of a Directly-Cast Low-Carbon Steel at High Temperatures." Materials 13, no. 10 (2020): 2281. http://dx.doi.org/10.3390/ma13102281.

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A model-based process control of material production processes demands realistic material models describing the local evolution of the thermal and mechanical state variables, i.e., temperature, stress, strain, or plastic strain, for the relevant microstructure state. In the present work, a material model for the specific microstructure in a continuously cast strand shell, viable for reproducing cyclic viscoplastic effects, was developed for a 0.17 wt.% C steel. Experimental data was generated using directly-cast samples and a well-controllable testing facility to apply representative loading c

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