Relevant bibliographies by topics / Kinematic and isotropic hardening

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Kinematic and isotropic hardening'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Kinematic and isotropic hardening"

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Moosbrugger, J. C. "Anisotropic Nonlinear Kinematic Hardening Rule Parameters From Reversed Proportional Axial-Torsional Cycling." Journal of Engineering Materials and Technology 122, no. 1 (July 14, 1999): 18–28. http://dx.doi.org/10.1115/1.482760.

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A procedure for determining parameters for anisotropic forms of nonlinear kinematic hardening rules for cyclic plasticity or viscoplasticity models is described. An earlier reported methodology for determining parameters for isotropic forms of uncoupled, superposed Armstrong-Frederick type kinematic hardening rules is extended. For this exercise, the anisotropy of the kinematic hardening rules is restricted to transverse isotropy or orthotropy. A limited number of parameters for such kinematic hardening rules can be determined using reversed proportional tension-torsion cycling of thin-walled tubular specimens. This is demonstrated using tests on type 304 stainless-steel specimens and results are compared to results based on the assumption of isotropic forms of the kinematic hardening rules. [S0094-4289(00)00301-7]
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Jiang, Wei. "General Kinematic-Isotropic Hardening Model." Journal of Engineering Mechanics 125, no. 4 (April 1999): 487–90. http://dx.doi.org/10.1061/(asce)0733-9399(1999)125:4(487).

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HASHIGUCHI, Koichi, and Kazuo OKAMURA. "GS0301-107 Subloading crystal plasticity with isotropic and kinematic hardening." Proceedings of the Materials and Mechanics Conference 2015 (2015): _GS0301–10—_GS0301–10. http://dx.doi.org/10.1299/jsmemm.2015._gs0301-10.

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Chatterjee, Biplab, and Prasanta Sahoo. "Finite Element Based Unloading of an Elastic Plastic Spherical Stick Contact for Varying Tangent Modulus and Hardening Rule." International Journal of Surface Engineering and Interdisciplinary Materials Science 1, no. 1 (January 2013): 13–32. http://dx.doi.org/10.4018/ijseims.2013010102.

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Loading-unloading behavior of a deformable sphere with a rigid flat under full stick contact condition is investigated for varying strain hardening. The study considers various tangent modulus using the finite element software ANSYS. Both the bilinear kinematic hardening and isotropic hardening models are considered. Numerical simulation reveals the qualitative similarity between kinematic and isotropic hardening regarding the variation of interfacial parameters during loading-unloading for various tangent modulus. It is found that the material with kinematic hardening dissipates more energy than the material with isotropic hardening during unloading. However for elastic perfectly plastic material, the loading-unloading behavior is insensitive to hardening model.
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HAKANSSON, P., M. WALLIN, and M. RISTINMAA. "Comparison of isotropic hardening and kinematic hardening in thermoplasticity." International Journal of Plasticity 21, no. 7 (July 2005): 1435–60. http://dx.doi.org/10.1016/j.ijplas.2004.07.002.

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Muránsky, Ondrej, Cory J. Hamelin, Mike C. Smith, Phillip J. Bendeich, and Lyndon Edwards. "The Role of Plasticity Theory on the Predicted Residual Stress Field of Weld Structures." Materials Science Forum 772 (November 2013): 65–71. http://dx.doi.org/10.4028/www.scientific.net/msf.772.65.

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Constitutive plasticity theory is commonly applied to the numerical analysis of welds in one of three ways: using an isotropic hardening model, a kinematic hardening model, or a mixed isotropic-kinematic hardening model. The choice of model is not entirely dependent on its numerical accuracy, however, as a lack of empirical data will often necessitate the use of a specific approach. The present paper seeks to identify the accuracy of each formalism through direct comparison of the predicted and actual post-weld residual stress field developed in a three-pass 316LN stainless steel slot weldment. From these comparisons, it is clear that while the isotropic hardening model tends to noticeably over-predict and the kinematic hardening model slightly under-predict the residual post-weld stress field, the results using a mixed hardening model are quantitatively accurate. Even though the kinematic hardening model generally provides more accurate results when compared to an isotropic hardening formalism, the latter might be a more appealing choice to engineers requiring a conservative design regarding weld residual stress.
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Hu, Jing, Xiao Xing Li, Kwan Soo Chung, and Rao Yao. "Spring-Back Evaluation of Stretch Bending Process Based on Chaboche Combined Isotropic-Kinematic Hardening Laws." Advanced Materials Research 204-210 (February 2011): 1745–50. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.1745.

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We present a study on spring-back prediction in the stretching bending process using the Chaboche model combined isotropic-kinematic hardening law and Mises yielding criterion, and a material user subroutine (VUMAT, UMAT) program was developed base on the ABAQUS interface for the model. The effects of different hardening law on the spring-back in the stretch forming process was also analyzed and compared. The simulation results show that the combined isotropic-kinematic hardening law has the better spring-back prediction compared with the pure isotropic and kinematic hardening law in the stretch forming process, which is verified by the experimental results.
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Hayakawa, Kunio, Yukio Sanomura, Mamoru Mizuno, Yukio Kasuga, and Tamotsu Nakamura. "Finite Element Analysis of V-Bending of Polypropylene Using Hydrostatic-Pressure Dependent Plastic Constitutive Equation." Key Engineering Materials 340-341 (June 2007): 1103–8. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.1103.

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Finite element analysis of V-bending process of polypropylene was performed using hydrostatic-dependent elastic-plastic constitutive equations proposed by the present authors. Kinematic and isotropic hardening rule was employed for the plastic constitutive equations. The kinematic hardening rule was more suitable for the expression of the stress reversal in uniaxial stress - strain relation than the isotropic hardening. For the result of the finite element analysis of V-bending, the kinematic hardening rule was able to predict the experimental behavior of springback more properly than the isotropic hardening. Moreover, the effects of hydrostatic pressure-dependence were revealed by examining the calculated distribution of bending plastic strain, bending stress and the width of the bent specimen.
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Slota, Jan, Ivan Gajdos, Emil Spišák, and Marek Šiser. "Springback Prediction of Stretching Process using Finite Element Analysis for DP600 Steel Sheet." Acta Mechanica et Automatica 11, no. 1 (March 1, 2017): 5–8. http://dx.doi.org/10.1515/ama-2017-0001.

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Abstract Springback phenomenon is well predicted for some mild steel materials, but not for steels with higher strength. One of the most used tools to stamping optimization is usage of finite element analysis. In order to accurate describe the real behaviour of the materials for stamping of vehicle panels, the application of proper hardening rule seems to be crucial. Due to higher accuracy of predicted results, high strength steel sheets are usually modelled by means of kinematic or mixed isotropic-kinematic hardening models. In this paper the springback prediction of advanced high strength steel DP600 by numerical simulation was investigated. Through cyclic tension-compression tests, the material characterization has been performed for DP600 steel sheet. Different hardening models (isotropic, kinematic and mixed isotropic-kinematic) used in the simulations were compared with expreriment. The Yoshida–Uemori model succesfully describe the kinematic behaviour of the material and provided more accurate results than others.
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Yan, Xiangqiao. "Effect of Yield Surface Curvature on Local Necking in Biaxially Stretched Sheets in Porous Materials." Journal of Engineering Materials and Technology 114, no. 2 (April 1, 1992): 196–200. http://dx.doi.org/10.1115/1.2904161.

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In this paper, a recently proposed material model (Sun model) that is based on the lower bound approach of plasticity is extended by introducing a family of dilatant plasticity theories. The yield surfaces change by a combination of isotropic expansion and kinematic translation. The sensitivity of the local necking predictions in biaxially stretched sheets to the curvature of the yield surface in porous materials is addressed. The results of the present analysis obtained by using four material models, the isotropic hardening version of Sun, the kinematic hardening version suggested in this paper, the Gurson model, and the Mear and Hutchinson model, indicate that the local necking predictions are highly sensitive to the curvature of the yield surface, and the predictions given by the kinematic hardening model are more reasonable for local necking analysis than those by the isotropic hardening model.
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Dissertations / Theses on the topic "Kinematic and isotropic hardening"

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VALENTE, MARCELO MAGALHAES. "A THEORY OF ELASTIC-VISCOPLÁSTICAS BEAMS WITH KINEMATIC AND ISOTROPIC HARDENING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1993. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33229@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO
Este trabalho apresenta uma teoria de vigas para metais e ligas metálicas a altas temperaturas que leva em conta o endurecimento cinemático e isotrópico induzidos pela plastificação. Apesar da não linearidade das equações constitutivas consideradas, propõe-se uma técnica numérica extremamente simples de solução, válida para diferentes tipos de carregamentos. Desta forma, é possível se fazer a baixo custo uma avaliação das tensões atuantes e das deformações permanentes induzidas por carregamentos complexos, o que é um passo fundamental no estudo da integridade de certos equipamentos industriais.
This work presents a theory of beams for metals and alloys at elevated temperature which takes into account the kinematic and isotropic hardening induced by plastic deformation. In spite of the strong non linearity of the constitutive equations, it is proposed a very simple numerical technique of solution which is valid is valid for any kind of loading. Consequently, the theory allows a low cost analysis of the stresses and strains in many structural elements used in industrial applications.
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White, Charles Samuel. "A combined isotropic-kinematic hardening model for large deformation metal plasticity." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14400.

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Kpodekon, Crescent. "Effet du pré-écrouissage sur la durée de vie d'aciers austénitiques de type 304L." Phd thesis, INSA de Rouen, 2010. http://tel.archives-ouvertes.fr/tel-00581715.

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Le travail s'intéresse aux effets de l'histoire de chargement sur le comportement et la durée de vie en fatigue de deux nuances (THYSSEN et CLI)d'un acier inoxydable austénitique 304L à la température ambiante. Les essais ont été réalisés en utilisant deux catégories d'éprouvettes. Les éprouvettes de la première catégorie (vierges) ont été soumises à des essais classiques de fatigue,alors que celles de la deuxième ont subi, avant les essais de fatigue, un pré-écrouissage monotone ou cyclique en déformation imposée. Les éprouvettes vierges manifestent un adoucissement cyclique suivi d'un durcissement cyclique alors que les éprouvettes pré-écrouies ne présentent qu'un durcissement cyclique. Les résultats montrent une grande influence du pré-écrouissage qui semble bénéfique en contrainte imposée, mais néfaste en déformation imposée,même en présence d'une contrainte moyenne de compression. Ces résultats sont discutés en termes d'évolution cyclique du module d'élasticité, des écrouissages isotropes et cinématiques, et de la densité d'énergie absorbées par cycle, dans différentes configurations : avec ou sans pré-écrouissage, en contrainte ou déformation imposées...
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Lucchetta, Antoine. "Homogénéisation des composites élasto-viscoplastiques écrouissables par une double procédure variationnelle incrémentale." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS627.

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Dans cette thèse nous étudions le comportement de composites visco-élastiques linéaire, élasto-(visco)plastiques à écrouissages cinématique linéaire ou non linéaire et isotrope, ainsi que de composites plastiquement compressibles. Pour cela, nous nous appuyons sur les principes incrémentaux variationnels introduits par Lahellec et Suquet (2007). Nous tirons également parti d’une autre formulation récemment proposée par Agoras et al. (2016), consistant en une double application de la procédure variationnelle de Ponte-Castañeda (1991). La première application de la procédure variationnelle permet, après la résolution de conditions de stationnarité, de linéariser le comportement local en prenant en compte l’écrouissage. Ceci conduit à un Milieu Linéaire de Comparaison (MLC) thermo-élastique avec un champ de polarisation hétérogène par phase. La seconde application traite de l'hétérogénéité de la polarisation et donne lieu à un nouveau MLC thermo-élastique avec un champ de polarisation homogène par phase. Le comportement effectif peut ensuite être estimé par les schémas classiques d'homogénéisation linéaire, ici les bornes de Hashin et shtrikman. Les prévisions du modèle sont comparées aux résultats disponibles dans la littérature pour différents chargements. Un bon accord a été observé entre les prédictions du modèle proposé et les simulations numériques en champs complets. De nouveaux résultats pour les composites élasto-plastiques à écrouissage isotrope et à écrouissages cinématique linéaire ou non linéaire et isotrope sont également fournis. Ils sont en bon accord avec les calculs numériques que nous avons effectués, tant à l’échelle locale que macroscopique
In this thesis we investigate the behavior of linear viscoelastic composites, elasto-(visco)plastic composites with isotropic and linear or nonlinear kinematic hardening and plastically compressible composites. We first rely on the incremental variational principles introduced by Lahellec and Suquet (2007). We also take advantage of an alternative formulation, recently proposed by Agoras et al. (2016), which consists in a double application of the variational procedure of Ponte-Castañeda (1991). The first application of the variational procedure linearizes the local behavior, including hardening, and leads to a thermo-elastic Linear Comparison Composite (LCC) with a heterogeneous polarization field inside the phases. The second one deals with the heterogeneity of the polarization and results in a new thermo-elastic LCC with a per-phase homogeneous polarization field, which effective behavior can then be estimated by classical linear homogenization schemes, the Hashin et shtrikman bounds. The predictions of the model are compared with results available in the literature for different loadings. A good agreement has been observed between the predictions of the proposed model and numerical full field simulations. New results for elasto-plastic composites with isotropic and combined isotropic and linear or nonlinear kinematic hardening are also provided. They are in good agreement with the numerical computations we carried out, at both local and macroscopic scales
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Sehnal, Dominik. "Nízkocyklová životnost v podmínkách jaderné energetiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399581.

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Fatique life extension of nuclear powerplants lies in the search for project reserves. This work deals with the evaluation of low-cycle fatigue of nuclear installations of the VVER type and the assessment of the influence of the computational model level. Fatigue tests of austenitic steel using optical method of digital image correlation for which the evaluation procedure is designed and used is performed. Selected model of plasticity with kimenatic (Chaboche) and combinated hardening (Chaboche, Voce) are calibrated from the obtained data. Subsequently, the durability of the test specimen is determined by computational modeling for different material models. From the comparison of the results of fatigue tests with the calculation, the material models suitable for the description of fatigue life and their validity are determined.
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Belattar, Adel. "Analyses multi-échelles du comportement et la durée de vie d’aciers inoxydables 304L sous sollicitations cycliques avec pré-écrouissage." Thesis, Rouen, INSA, 2013. http://www.theses.fr/2013ISAM0004/document.

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Le travail s’intéresse aux effets d’un pré-écrouissage cyclique axial ou en torsion sur le comportement cyclique et la durée de vie en fatigue sous sollicitation axiale à température ambiante d’un acier inoxydable austénitique 304L. Les essais cycliques séquentiels à amplitude de déformation croissante ou décroissante montrent que la courbe cyclique du 304L est non-unique. Cette caractéristique est liée à la persistance de l’état microstructural généré pendant les cycles d’amplitude de déformation maximale de la première séquence. En augmentant le nombre des séquences, l’acier 304L montre une tendance vers une courbe cyclique asymptotique, l’écrouissage semble se stabiliser. Des essais de fatigue sous chargement axial ont été réalisés sur des éprouvettes vierges ou pré-écrouies en traction-compression ou en torsion. Les durées de vie ont été sensiblement réduites pour les éprouvettes pré-écrouies. Ce phénomène est lié à la formation de structures de dislocations denses héritées de la phase de pré-écrouissage. Cependant, l’augmentation de l’amplitude de déformation en fatigue réduit l’effet du pré-écrouissage
This study investigates the effects of loading history on the cyclic stress-strain curve and fatigue behavior of 304L stainless steel at room temperature. Tension-compression tests were performed ont the same specimen under controlled strain, using several loading sequences of increasing or decreasing amplitude. The results showed that fatigue life is significantly reduced by the previous loading history. A previously developed method for determining the effect of prehardening was evaluated. Microstructural analyses were also performed; the microstructures after preloading and their evolution during the fatigue cycles were characterized by TEM. The results of these analyses improve our understanding of the macroscopic properties of 304L stainless steel and can help us identify the causes of failure and lifetime reduction
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Geng, Lumin. "Application of plastic anisotropy and non-isotropic hardening to springback prediction /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488195154360632.

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Abdulla, Ali Abdulhussein 1967. "Constitutive modeling of dilatant soils with associative kinematic hardening plasticity." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277254.

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In this study, a set of rules is established, which when implemented in the modeling of dilatant soils, within the framework of associative plasticity, enables very successful shear and dilatancy predictions. The proposed approach is based on a number of principles, the most important of which are: (1) The plasticity model must have a loading surface that hardens kinematically, and a failure surface that is perfectly plastic. (2) Experimental evidence shows that uniformly deformed sand samples dilate with a constant rate when they reach their ultimate strength value, while critical state is only achieved at very large strains. There is a unique point A on the loading surface that corresponds to the experimentally observed dilatation rate. The hardening rule must, therefore, ensure that the stress point approaches A as it approaches the failure surface. These principles are implemented in a plasticity model and compared to numerous published monotonic and cyclic tests, with varied stress paths, performed on a true triaxial apparatus. The agreement between experimental data and theoretical predictions is excellent.
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Grammatikopoulou, Angeliki. "Development, implementation and application of kinematic hardening models for overconsolidated clays." Thesis, Imperial College London, 2004. http://hdl.handle.net/10044/1/45388.

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The pre-failure behaviour of overconsolidated clays is now well known to be highly non-linear and inelastic. Conventional constitutive soil models fail to predict this observed behaviour and recently a family of elasto-plastic soil models, the kinematic hardening models, has been developed to overcome these limitations. The kinematic hardening models allow for plasticity and non-linearity to be invoked within the conventionally defined yield surface, through the introduction of kinematic surfaces. The aim of this thesis is to improve the predictions of the behaviour of overconsolidated clays, particularly the pre-failure behaviour, through the study of elasto-plastic constitutive models based on this concept. Two existing kinematic hardening models, formulated within the framework of critical state soil mechanics, were chosen to be implemented into the Imperial College Finite Element Program (ICFEP), the two-surface model developed by Al-Tabbaa (1987), and the three-surface model developed by Stallebrass (1990). Both models were generalised in order to make their implementation into a finite element code possible. Although these models form a substantial improvement in modelling the behaviour of overconsolidated clays they cannot predict a smooth transition from elastic to elasto-plastic behaviour. This feature of behaviour, which proves to be an important drawback when simulating pre-failure non-linearity, was improved by changing the hardening modulus of each model and in this way two new generalised models were formulated. The implementation of the four models into ICFEP was validated through a number of single finite element analyses. The performance of the models was then evaluated through simulation of a series of laboratory tests on overconsolidated clays and comparison of the predictions with experimental data, where possible. The models were further used in the finite element analyses of two boundary value problems. The first of these modelled an embankment founded on a soft clay deposit. The second boundary value problem involved the analyses of tunnels excavated within the heavily overconsolidated London Clay. An analysis of the twin tunnels beneath St. James's Park, London, constructed as part of the Jubilee Line Extension of the London Underground network, is also presented. The predictions of the models were compared with field data, where available.
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Grilo, Tiago Jordão. "Development of computational anisotropic hypoelastic- and hyperelastic-based models including nonlinear kinematic hardening." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14428.

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Doutoramento em Engenharia Mecânica
In the present work, finite strain elastoplastic constitutive formulations suitable for advanced metallic materials are developed. The main goals are the correct description of the elastoplastic behaviour, including strong plastic anisotropy and cyclic hardening phenomena, in the large strain regime, as well as the development of numerically efficient algorithmic procedures for numerical implementation of the constitutive models into codes of numerical simulation by the Finite Element Method. Two different approaches are used in the derivation of the finite strain constitutive formulations, namely, hypoelasticity and hyperelasticity. On the one hand, regarding the hypoelastic-based model, particular attention is given to the development of computationally effcient forward- and backward-Euler algorithms considering distinct techniques. On the other hand, concerning the hyperelastic-based model, the focus is on the possibility of using any (quadratic or nonquadratic) yield criteria and on a new procedure that ensures that the anisotropy is correctly described in the finite strain regime. Moreover, the constitutive relations are solely expressed in the reference configuration, hence yielding symmetric tensor-valued quantities only. This symmetry, allied to an algorithm that preserves it, is crucial for the computational efficiency of the model's implementation since it reduces the storage effort and the required solver capacities when compared to the model's standard counterparts. For a better description of cyclic hardening phenomena, the developed models and corresponding algorithms, are extended to include several back stresses. This extension is carried out by considering a modified rheological model of nonlinear kinematic hardening and using additional state variables. The capabilities of the developed models for accurate reproduction of the plastic anisotropy and cyclic hardening phenomena are assessed by means of their implementation into material user subroutines of the commercial code Abaqus. The accuracy and computational efficiency of the models and numerical algorithms are compared by means of simulations of benchmarks. These benchmarks allow the models' assessment in the description of, e.g., metal forming defects such as earing and springback, as well as the comparison of the stability and precision of the numerical algorithms.
No presente trabalho, são desenvolvidas formulações constitutivas elastoplásticas para grandes deformações, adequadas a materiais metálicos avançados. Os principais objectivos deste estudo consistem na correcta descrição do comportamento elastoplástico, incluindo anisotropia plástica acentuada e fenómenos de endurecimento cíclico, no regime de grandes deformações, bem como o desenvolvimento de procedimentos algorítmicos eficientes para a implementação numérica dos modelos constitutivos em códigos de simulação numérica pelo Método dos Elementos Finitos. São usadas duas metodologias diferentes na derivação das formulações constitutivas de grandes deformações, nomeadamente, hipoelasticidade e hiperelasticidade. Por um lado, relativamente ao modelo baseado em hipoelasticidade, é dada particular atenção ao desenvolvimento de algoritmos eficientes do ponto de vista computacional, considerando técnicas particulares. Por outro lado, em relação ao modelo baseado em hiperelasticidade, a possibilidade de usar qualquer critério de cedência (quadrático ou não-quadrático) e a apresentação de um procedimento inovador, que garante a correcta descrição da anisotropia na presença de grandes deformaçães, são destacadas. Além disso, as relações constitutivas são expressas unicamente na configuração de referência, resultando no uso de apenas variáveis simétricas de segunda ordem. Esta simetria e o uso de um algoritmo que a preserva são cruciais no que diz respeito à eficiência numérica da implementação do modelo, uma vez que reduz significativamente o espaço de armazenamento e o custo computacional de cálculo, relativamente aos modelos hiperelásticos convencionais. Os modelos, e respectivos algoritmos de integração, são posteriormente alargados ao uso de múltiplos tensores das tensões inversas de modo a permitir uma melhor descrição dos fenómenos de endurecimento cíclico. Para tal, foi considerado um modelo reológico modificado de endurecimento cinemático e usadas variáveis de estado adicionais. O desempenho dos modelos desenvolvidos na reprodução precisa de anisotropia plástica e fenómenos de endurecimento cíclico é avaliado através da sua implementação no código comercial Abaqus usando subrotinas de utilizador. A precisão e eficiência computacional dos modelos e algoritmos desenvolvidos são comparados entre si através de simulações de benchmarks. Estes benchmarks permitem a avaliação dos modelos na descrição de, por exemplo, defeitos na conformação de chapas metálicas, tais como a formação de orelhas e o retorno elástico, bem como a comparação da estabilidade e precisão dos algoritmos numéricos.
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Books on the topic "Kinematic and isotropic hardening"

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Zbib, Hussein M. Size effects and shear banding in viscoplasticity with kinematic hardening. Pullman, Wash: Dept. of Mechanical and Materials Engineering, Washington State University, 1994.

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Freed, Alan David. A viscoplastic model with application of LiF-22%CaF₂ hypereutectic salt. [Washington, D.C.]: National Aeronautics and Space Administration, 1990.

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Book chapters on the topic "Kinematic and isotropic hardening"

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Håkansson, Paul, and Matti Ristinmaa. "Isotropic/Kinematic Hardening in Thermoplasticity." In Encyclopedia of Thermal Stresses, 2585–95. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-2739-7_887.

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da Costa Teixeira, Julien, Laure Bourgeois, Chad W. Sinclair, and Christopher R. Hutchinson. "Experimental Investigation of Isotropic and Kinematic Hardening in Al-3Cu-0.05Sn (wt%)." In Materials Science Forum, 1849–52. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.1849.

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Galdos, Lander, Julen Agirre, Nagore Otegi, Joseba Mendiguren, and Eneko Saenz de Argandoña. "Simulation of Cold Forging Processes Using a Mixed Isotropic-Kinematik Hardening Model." In Forming the Future, 773–87. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_64.

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Oka, Fusao, and Sayuri Kimoto. "Simulation of Isotropic Cyclic Compression by an Elasto-viscoplasitc Constitutive Model Based on the Nonlinear Kinematic Hardening Rules." In Springer Series in Geomechanics and Geoengineering, 215–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32814-5_27.

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Dubey, R. N., R. Sauve, and S. Bedi. "On Kinematic Hardening Rules." In Anisotropy and Localization of Plastic Deformation, 305–8. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_71.

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Stein, E., and Y. J. Huang. "Shakedown for systems of kinematic hardening materials." In Inelastic Behaviour of Structures under Variable Loads, 33–50. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0271-1_3.

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Boehler, J. P. "On a Rational Formulation of Isotropic and Anisotropic Hardening." In Applications of Tensor Functions in Solid Mechanics, 99–122. Vienna: Springer Vienna, 1987. http://dx.doi.org/10.1007/978-3-7091-2810-7_6.

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Matone, R., and B. Roth. "Designing Manipulators for Both Kinematic and Dynamic Isotropic Properties." In ROMANSY 11, 99–106. Vienna: Springer Vienna, 1997. http://dx.doi.org/10.1007/978-3-7091-2666-0_12.

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Stein, E., G. Zhang, and R. Mahnken. "Shake-Down Analysis for Perfectly Plastic and Kinematic Hardening Materials." In Progress in Computational Analysis of Inelastic Structures, 175–244. Vienna: Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-2626-4_4.

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Chaboche, J. L., and D. Nouailhas. "On Various Non-Linear Kinematic Hardening Rules in Cyclic Plasticity and Viscoplasticity." In Computational Mechanics ’88, 529–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61381-4_132.

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Conference papers on the topic "Kinematic and isotropic hardening"

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Chung, Kwansoo. "Consistency condition for isotropic-kinematic hardening of anisotropic yield functions." In THE 11TH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN INDUSTRIAL FORMING PROCESSES: NUMIFORM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4806809.

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Kirloskar, Sharang, Gurmeet Singh, and Avinash Kumar. "Necessity of Kinematic Strain Hardening in Simulating Impact Events." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4779.

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Impact events are very high speed and short duration events. Experimental analysis of such events tends to be extremely expensive and challenging to study because of the apparatus and measurement systems required to capture the event. Due to this, impact events are studied extensively through simulations. The ability to simulate these events is a dictating factor for developing better and more efficient designs. Traditionally, loads occurring due to impact events are assumed to monotonically increase and hence pure isotropic strain hardening is sufficient to model the material behavior. However, this assumption doesn’t hold true for all impact events. When the loads caused by an impact do not monotonically increase but instead oscillate causing tension and compression cycles, pure isotropic hardening could lead to unrealistic results. In this work, different strain hardening rules are studied and analyzed for a plate under impact loading. The process to obtain a parameter which sets a realistic combination of isotropic and kinematic strain hardening rules is demonstrated and discussed. Limitations of the existing practice of using isotropic hardening in impact loading cases are studied. An alternative approach to accommodate the kinematic hardening rule into material models using LS-DYNA, a finite element solver, is discussed.
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Fathi, A., J. J. Roger Cheng, Samer Adeeb, and Joe Zhou. "Critical Buckling Strain in High Strength Steel Pipes Using Isotropic-Kinematic Hardening." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31149.

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High strength steel pipes (HSSP) have become more popular recently for highly pressurized pipelines built to transport natural gas from remote fields to energy markets. Material tests on HSSP showed significant material anisotropy caused by the pipe making process, UOE. A combined isotropic-kinematic hardening material model is developed based on observations made on longitudinal and transverse stress strain data of HSSP. This material model combines linear isotropic hardening with Armstrong-Fredrick kinematic hardening and can be easily calibrated by longitudinal and transverse tension coupon test results. The proposed material model is used to show how considering material anisotropy affects the critical buckling strain of HSSP in the longitudinal direction. Finite element (FE) models are developed to simulate one pressurized and one unpressurised HSSP tested under monotonic displacement-controlled bending. Isotropic and anisotropic material modeling methods are used for each HSSP models. In the isotropic material model, longitudinal stress-strain data of HSSP material is used to define the stress-strain relationship. In the anisotropic model combined hardening material model, calibrated by longitudinal and transverse HSSP stress-strain data, is used. Critical buckling strain predictions by isotropic and anisotropic models of these pipes are compared with test results and also with some available criteria in standards and literatures. These comparisons show that anisotropic models give predictions closer to test results.
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Miranda Pino, L. F., Piaras A. Kelly, and Beatrice A. Baudet. "Modelling Isotropic and Kinematic Hardening of Granular Materials with a Thermodynamical Approach." In Sixth Biot Conference on Poromechanics. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480779.131.

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Vladimirov, Ivaylo N., and Stefanie Reese. "A finite strain isotropic/kinematic hardening model for springback simulation of sheet metals." In 10TH ESAFORM CONFERENCE ON MATERIAL FORMING. AIP, 2007. http://dx.doi.org/10.1063/1.2729501.

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Zhu, Xian-Kui, and Brian N. Leis. "Elastic-Plastic Finite Element Simulation and Fatigue Life Prediction for Beam and Elbow Under Cyclic Loading." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26273.

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Work hardening and Bauschinger effects on plastic deformation and fatigue life for a beam and an elbow under cyclic loading are examined using finite element analysis (FEA). Three typical material plastic hardening models, i.e. isotropic, kinematic and combined isotropic/kinematic hardening models are adopted in the FEA calculations. Based on the FEA results of cyclic stress and strain at a critical location and using an energy-based fatigue damage parameter, the fatigue lives are predicted for the beam and elbow. The results show that (1) the three material hardening models determine similar stress at the critical location with small differences during the cyclic loading, (2) the isotropic model underestimates the cyclic plastic strain and overestimates the fatigue life, (3) the kinematic model overestimates the cyclic plastic strain and underestimates the fatigue life, and (4) the combined model predicts the intermediate cyclic plastic strain and reasonable fatigue life.
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Mullins, Jonathan, and Jens Gunnars. "Welding Simulation: Relationship Between Welding Geometry and Determination of Hardening Model." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78599.

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It is generally acknowledged that the material hardening model exerts a considerable effect on predicted weld residual stress fields. For this reason the choice of hardening model has attracted interest among analysts, particularly during recent validation studies. Nevertheless there is still lack of evidence for a hardening model which is generally applicable for all welding geometries. In this work we examine the predictions of nonlinear kinematic, isotropic and mixed hardening models for two different geometries: a single bead on plate weld, and a multi-bead girth weld. Hardening parameters are based on the same openly available mechanical test data. Deformation histories for the two welding geometries are presented. Predicted residual stress profiles are compared with experimental measurements. It is noted that nonlinear kinematic hardening results in good predictions for the single bead welding simulation where hardening in the weld and HAZ is dominated by a single heating and cooling cycle. Isotropic hardening results in good predictions for the 42 bead girth weld, where hardening in the weld and HAZ is heavily influenced by several heating and cooling cycles from the addition of several weld beads and where some relaxation of residual stress is possible. Mixed hardening can result in good predictions for both welding geometries. Additional strategies for development of material models based on isotropic and kinematic hardening and relevant test data are discussed with particular attention paid to intermediate weld geometries.
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Nayebi, Ali, and Kourosh H. Shirazi. "Cyclic Loading of Beams Based on Kinematics Hardening Behavior Coupled With Isotropic Damage." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95239.

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The kinematic hardening theory of plasticity based on the Prager model and incremental isotropic damage is used to evaluate the cyclic loading behavior of a beam under the axial, bending, and thermal loads. This allows damage to be path-dependent. The damage and inelastic deformation are incorporated and they are used for the analysis of the beam. The beam material is assumed to follow linear strain hardening property coupled with isotropic damage. The material strain hardening curves in tension and compression are assumed to be both identical for the isotropic material. Computational aspects of rate independent model is discussed and the constitutive equation of the rate independent plasticity coupled with the damage model are decomposed into the elastic, plastic and damage parts. Return Mapping Algorithm method is used for the correction of the elastoplastic state and for the damage model the algorithm is used according to the governed damage constitutive relation. The effect of the damage phenomenon coupled with the elastoplastic kinematic hardening is studied for deformation and load control loadings.
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Chow, C. L., and X. J. Yang. "A Generalized Mixed Kinematic-Isotropic Hardening Plastic Model Coupled With Anisotropic Damage for Sheet Metal Forming." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33019.

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The paper presents a generalized mixed isotropic-kinematic hardening plastic model coupled with anisotropic damage for sheet metal forming. A nonlinear anisotropic kinematic hardening is developed. For the predication of limit strains at localized necking in stamping under complex strain history, the model and its associated damage criterion for localized necking are established and implemented into LS-DYNA3D by compiling it as a user subroutine. The finite element simulation of LS-DYNA3D based on the present model is carried out. The location of localized necking for sheet metal forming has been successfully identified.
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Eslami, M. R., and H. Mahbadi. "Elastic-Plastic-Creep Cyclic Loading of Structures." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93079.

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In this article, cyclic loading results of structures, such as cylindrical and spherical vessels are investigated. The structure’s material is assumed to be isotropic and homogeneous and obey a nonlinear strain hardening law in the plastic range. Two general plasticity theories, namely the isotropic and kinematic hardening theories with the von Mises associated flow rules are used to evaluate the cyclic results of these structures under various types of mechanical and thermal loads. Prager and Armstrong-Frederick kinematic hardening models are used to simulate the transformation of the yield surface in the stress space, due to imposed loads. A new iterative method is proposed and used to analyze the structural behavior under cyclic loading conditions. The results are verified with the known data given in the literature.
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Reports on the topic "Kinematic and isotropic hardening"

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Parker, Anthony P., Edward Troiano, John H. Underwood, and Charles Mossey. Characterization of Steels Using a Revised Kinematic Hardening Model Incorporating Bauschinger Effect. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada405842.

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Corona, Edmundo, Amanda Jones, and Jennifer A. Rees. FY18 Thermal Mechanical Failure: SS-304L calibration Taylor-Quinney parameter measurement and kinematic hardening plasticity. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1489541.

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