Relevant bibliographies by topics / Beremin model

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Beremin model'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Beremin model"

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Golisch, Georg, Sebastian Münstermann, and Wolfgang Bleck. "Influence of the Stress State on the Predictability of the Failure Probability in the Beremin Model." Applied Mechanics and Materials 784 (August 2015): 403–10. http://dx.doi.org/10.4028/www.scientific.net/amm.784.403.

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The influence of the local state of stress on the predictability of the Beremin model is investigated. For this purpose, the Beremin model is used on a series of tensile experiments with varying constraints. One specimen series is used to calibrate the Beremin parameters. These are afterwards applied to all specimen series. For all series the test results are compared to the predicted 5% to 95% failure probability corridor calculated by the Beremin model. The results are then discussed in concern of the influence of the stress state on the predictability of the Beremin model.
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Qian, Guian, V. F. González-Albuixech, and Markus Niffenegger. "Calibration of Beremin model with the Master Curve." Engineering Fracture Mechanics 136 (March 2015): 15–25. http://dx.doi.org/10.1016/j.engfracmech.2015.02.003.

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Pan, Jianhua, and Mengle Yin. "Investigation on Beremin parameters based on the toughness scaling model." Engineering Fracture Mechanics 247 (April 2021): 107697. http://dx.doi.org/10.1016/j.engfracmech.2021.107697.

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Lefevre, W., G. Barbier, R. Masson, and G. Rousselier. "A modified Beremin model to simulate the warm pre-stress effect." Nuclear Engineering and Design 216, no. 1-3 (July 2002): 27–42. http://dx.doi.org/10.1016/s0029-5493(02)00067-5.

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Koundy, V., S. Renevey, B. Marini, and A. Combescure. "Effects of Torsional Buckling on the Cleavage Failure of Low-Alloy Steel Tension Pipe Specimens." Journal of Pressure Vessel Technology 120, no. 3 (August 1, 1998): 256–61. http://dx.doi.org/10.1115/1.2842055.

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The local approach criterion of fracture mechanics, initially developed by Beremin for brittle cleavage fracture, is applied here to A508 class 3 low-alloy ferritic steel. This criterion, based on the maximum principal stress and Weibull statistics, has previously been verified in the case of uniaxial tests. In this study, it is extended to multiaxial loading tests, that can lead to more significant levels of plastic strain, and thus permit a study of the effect of plastic strain on cleavage fracture. Uniaxial tests on axisymmetric notched tensile bars (AE2-6) were used to determine Beremin’s model parameters m and σu. The cleavage fracture behavior, described by these parameters, was then verified by multiaxial tension-torsion tests carried out on thin tubular specimens. Numerical simulations of the tension-torsion tests, by the finite element method, were also performed, taking into account the nonlinear geometrical effects and the specimen plastic buckling. The buckling critical loads were calculated and used to ascertain whether fracture was associated with the instability phenomenon. Beremin’s model is shown to correctly describe experimental data which are not affected by buckling.
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Cao, Yupeng, Hu Hui, Guozhen Wang, and Fu-Zhen Xuan. "Inferring the temperature dependence of Beremin cleavage model parameters from the Master Curve." Nuclear Engineering and Design 241, no. 1 (January 2011): 39–45. http://dx.doi.org/10.1016/j.nucengdes.2010.11.009.

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Andrieu, A., A. Pineau, J. Besson, D. Ryckelynck, and O. Bouaziz. "Bimodal Beremin-type model for brittle fracture of inhomogeneous ferritic steels: Theory and applications." Engineering Fracture Mechanics 95 (November 2012): 84–101. http://dx.doi.org/10.1016/j.engfracmech.2011.10.016.

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Andrieu, A., A. Pineau, J. Besson, D. Ryckelynck, and O. Bouaziz. "Beremin model: Methodology and application to the prediction of the Euro toughness data set." Engineering Fracture Mechanics 95 (November 2012): 102–17. http://dx.doi.org/10.1016/j.engfracmech.2011.10.019.

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Mathieu, Jean-Philippe, Karim Inal, Sophie Berveiller, and Olivier Diard. "A micromechanical interpretation of the temperature dependence of Beremin model parameters for french RPV steel." Journal of Nuclear Materials 406, no. 1 (November 2010): 97–112. http://dx.doi.org/10.1016/j.jnucmat.2010.02.025.

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Burstow, M. C. "A re-assessment of parameter tuning for the Beremin model using the toughness scaling technique." International Journal of Pressure Vessels and Piping 80, no. 11 (November 2003): 797–805. http://dx.doi.org/10.1016/j.ijpvp.2003.01.004.

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Dissertations / Theses on the topic "Beremin model"

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Amzil, Aboubakr. "Compréhension et modélisation des mécanismes et des effets de géométrie dans la partie basse de la transition ductile-fragile." Thesis, Université Paris sciences et lettres, 2021. http://www.theses.fr/2021UPSLM002.

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Cette thèse a pour objectif principal d’étudier l’effet de la température et de la géométrie sur la ténacité d’un acier ferritique dans la partie basse de la zone de transition ductile-fragile. Ce travail propose de modéliser les mécanismes de rupture observés dans cette zone à l’aide d’une approche locale de rupture. Bien que conformément à l’expérience, la rupture dans la zone de transition résulte d’un couplage entre la rupture fragile et la rupture ductile, la présente thèse se consacre principalement à l’étude du bas de la zone de transition dans laquelle le mécanisme de rupture est principalement fragile. Une étude expérimentale du matériau, un acier ferritique 18MND5, est tout d’abord effectuée. Une base expérimentale, s’appuyant en partie sur des essais existants, a été construite afin de disposer, à différentes températures, d’essais sur des éprouvettes non fissurées et sur des éprouvettes fissurées. Les éprouvettes non fissurées (TC et AE) sont utilisées pour l’étude du comportement élasto-plastique tandis que les éprouvettes fissurées (CT et SENT) sont utilisées pour étudier le comportement à rupture. Une étude fractographique au MEB des faciès de rupture permet dans un premier temps de décrire les mécanismes de rupture en fonction de la géométrie et de la température et dans un deuxième temps, de distinguer les éprouvettes purement fragiles des éprouvettes qui ont une certaine avancée ductile de la fissure. Ensuite, à partir des résultats des observations précédentes, la plasticité et la rupture fragile du matériau sont modélisées. Une nouvelle méthodologie du calcul de la contrainte de Weibull permettant de s’assurer que celle-ci est correctement évaluée est proposée. En particulier, on vérifie que le calcul est convergé en maillage et on filtre les fortes fluctuations de contrainte. Le clivage est décrit à l’aide d’une version modifiée du modèle de Beremin qui permet de prendre en compte l’effet de la déformation plastique sur la contrainte de Weibull. Cette formulation permet d’identifier, à une température donnée, un jeu de paramètre unique pour modéliser la probabilité de rupture sur différentes géométries (CT d’épaisseurs différentes et SENT). Par contre, les paramètres identifiés dépendent de la température. En complément, la thèse a aussi été l’occasion d’initier un travail sur l’endommagement ductile dans la transition tant au niveau de la base expérimentale construite, qui couvre l’ensemble de la zone de transition, qu’au niveau de modélisation de l’endommagement ductile avec l’identification des paramètres du modèle non local GTN sur les éprouvettes axisymétriques. Ces travaux pourront constituer un point de départ pour une modélisation futur du couplage entre la rupture ductile et fragile dans la transition
The main goal of this thesis is to study the effect of temperature and geometry on the toughness of a ferritic steel in the lower part of the brittle to ductile transition zone. This work proposes to model the failure mechanisms observed in this zone using a local approach to failure. Although, according to experimental evidences, fracture in the transition zone results from a coupling between brittle and ductile fracture, the present thesis is mainly focused on the study of the lower part of the transition zone in which the fracture mechanism is mainly brittle. An experimental study of the material, a ferritic 18MND5 steel, is first proposed. An experimental database, consisting partially of existing tests was carried in order to have, at different temperatures, tests on uncracked specimens (TC and AE) mainly used for the study of elasto-plastic behaviour and tests on cracked specimens (CT and SENT) to study the fracture behaviour. A fractographic SEM study of the fracture surfaces allows, firstly, to describe the fracture mechanisms as a function of geometry and temperature and, secondly, to distinguish purely brittle specimens from specimens with ductile crack advance. Based on the results of the previous observations, plasticity and brittle fracture of the material are modelled. A new methodology for Weibull stress computation is proposed so as to ensure that it is correctly evaluated. Particularly, it is verified that Weibull computation is converged with respect to the mesh size. A procedure is proposed to filter out strong stress fluctuations. Cleavage is described using a modified version of Beremin's model which takes into account the effect of plastic strains on the Weibull stress. This formulation allows fitting, at a given temperature, of a unique set of parameters to model the fracture probabilities on different geometries (CT of different thicknesses and SENT). The fitted parameters are temperature dependent. In addition, the thesis also provided the opportunity to initiate the modeling of ductile failure in the transition. This includes the construction of a relevant experimental database which now covers the entire transition zone and the use of a non-local GTN type model which is fitted on axisymmetric notched bars. This work could constitute a starting point for future modelling of the coupling between ductile and brittle fracture in the transition
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Book chapters on the topic "Beremin model"

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Lenkey, Gy B., Zs Balogh, and T. Thomázy. "On the Application of the Beremin Model for Predicting the Brittle Fracture Resistance." In Transferability of Fracture Mechanical Characteristics, 123–34. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0608-8_9.

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"Walter Model, Günther von Kluge, Henning von Tresckow – »Der sittliche Wert eines Menschen beginnt erst dort, wo er bereit ist, für seine Überzeugung sein Leben hinzugeben«." In "Das Recht mich zu richten, das spreche ich ihnen ab!", 288–301. Verlag Ferdinand Schöningh, 2017. http://dx.doi.org/10.30965/9783657786961_016.

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Conference papers on the topic "Beremin model"

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Masson, R., L. Nicolas, and D. Moinereau. "RPV Structural Integrity Assessment During a PTS Event: Application of an Extended Beremin Model Consistent With WPS Test Results." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1331.

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Starting from the pioneering work of Beremin, the classical Beremin-Weibull fracture probability’s model was extended recently to tackle with non-monotonic thermomechanical loadings. As a result of temperature effect on mechanical fields’ heterogeneity, an apparent temperature dependence of tile cleavage stress was also introduced to fit correctly the fragile to ductile transition. Considering the classical expression of the fracture probability, this extension consists in substituting the instantaneous opening stress by the maximum of the instantaneous opening stress versus cleavage stress ratio, this maximum being searched for previous active plastic time. This extended Beremin model was successfully applied to WPS tests experienced on low alloy ferritic steel compact tension specimens. Through this work, we aim at applying this approach to assess RPV structural integrity, assumed to be affected by a subclad flaw, during a simulated PTS event. The pressurized vessel is submitted to a thermal transient applied on the inner cladded surface. Considering a circumferential flaw, a two-dimensional elastic-plastic Finite Element calculation is performed. Therefore, the time evolution of elastic-plastic stress intensity factor KJ at the crack tip in base metal is calculated. Then, the time evolution of the cumulative fracture probability, as predicted by the extended Beremin model, is derived to evaluate the vessel integrity.
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Beardsmore, D. W., H. Teng, and Michael Martin. "On the Expected Errors in Calibration of the Beremin Cleavage Model Parameters." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26559.

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We present the detailed results of a series of Monte Carlo simulations of the Gao and Dodds calibration procedure that was carried out to determine the likely size in the errors in the Beremin cleavage model parameter estimates that might be expected for fracture toughness data sets of various sizes. The calibration process was carried out a large number of times using different sample sizes, and mean values and standard errors in the parameter estimates were determined. Modified boundary layer finite element models were used to represent high and low constraint conditions (as in the fracture tests) as well as the SSY condition. The “experimental” Jc values were obtained numerically by random sampling of a Beremin distribution function with known values of the true parameters. A number of cautionary remarks in the application of the calibration method are made.
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Guan, Kaishu, Linling Guo, and Mingxue Fu. "Evaluation of Weibull Parameters by Different Small Punch Tests Samples Based on Beremin Model." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65083.

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Small punch testing technology is used for quantifying the mechanical properties of bulk materials with greatly reduced volume. However, as the volume decrease, the ductile to brittle transition region of the specimen will move to lower temperature. That means a small punch specimen and a bulk specimen may fracture under different regime. For this case, it’s difficult to obtain fracture toughness of bulk materials from the small punch tests. In this paper, a new approach, which is based on Beremin local approach, to evaluate the Weibull parameters of bulk materials in the ductile to brittle transition region by small punch tests has been proposed. This paper focuses on the choice of specimen types of small punch test based on Beremin model. Four different types of specimens were tested at ductile to brittle transition region. i.e. ( a ) two kinds of linear notched small punch test specimen (LNSP), (b) two kinds of center holed small punch test specimen (CHSP). All notches of the specimens were machined by electric discharge method, and both sides of the specimens were grinded and polished. The results showed that 0.5mm CHSP (center holed small punch test specimen) is the best choice for small punch test based on Beremin model according to experimental curves, SEM (scanning electron microscope) analysis, and result of finite element simulation. Furthermore, the cumulative failure probability in ductile-to-brittle transition region by small punch tests was obtained and the method of calculating Weibull parameters (m,σu) is analyzed.
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Smith, Robin J., Andrew H. Sherry, Adam C. Bannister, and Anthony J. Horn. "Prediction of SENB Fracture Toughness From Charpy Data Using the Beremin Model in the Lower Transition Region." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97517.

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This work focuses on the application of a mechanistic local approach model to describe the statistical distribution of experimental Charpy (CVN) impact test data obtained at several temperatures in the ductile to brittle transition temperature range. The current objective is to develop a correlation in the lower transition regime between quasi-static CVN absorbed energy (CVE) and the J-integral fracture toughness (Jc) obtained from deeply pre-cracked Charpy (PCCVN) specimens tested quasi-statically to laboratory test standards. The Beremin model for cleavage fracture has been applied to a ferritic steel which has been comprehensively tested using standard CVN, shallow U-notched and PCCVN specimen types in the lower ductile to brittle transition. This has enabled a prediction to be made of the absorbed CVE at cleavage fracture initiation for a Charpy specimen tested quasi-statically in the lower part of the CVN transition curve. By applying the Beremin model to PCCVN single edge notch bend specimens at quasi-static rates it was possible to use the Weibull stress, to achieve a reliable correlation between CVE and Jc in the lower ductile to brittle transition region. The results from this work indicate that the Beremin model can provide a theoretically based correlation for CVE to Jc fracture toughness for a ferritic steel under quasi-static loading conditions. The overall objective of the project remains to predict dynamic CVN absorbed energy using micromechanical modelling and which is valid for all ferritic steels.
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Lewis, S. J., C. E. Truman, and D. J. Smith. "Use of Local Approach Methods With Non-Proportional Load Histories." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77567.

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So-called ‘local approach’ methods for fracture analyses, such as the commonly used Beremin model, are attractive as a means to predict component failure due to their flexibility and applicability to a wide range of geometries. However, in cases where cyclic loading occurs, resulting in the accumulation of plastic strain and accompanying residual stress, the validity of the Beremin approach is questionable. This work investigates the applicability of a range of alternative local approach methods to model material failure behaviour in such cases, as well as commenting on the calibration and physical basis of such methods.
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Gao, Xiaosheng, Jason P. Petti, and Robert H. Dodds. "The Weibull Stress Model for Predicting Cleavage Fracture in the Ductile-to-Brittle Transition Region." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61080.

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Transgranular cleavage fracture in the ductile-to-brittle transition region of ferritic steels often leads to spectacular and catastrophic failures of engineering structures. Due to the strongly stochastic effects of metallurgical scale inhomogenieties together with the nonlinear mechanical response from plastic deformation, the measured fracture toughness data exhibit a large degree of scatter and a strong dependence on constraint. This has stimulated an increasing amount of research over the past two decades, among which the Weibull stress model originally proposed by the Beremin group has gained much popularity. This model is based on weakest link statistics and provides a framework to quantify the relationship between macro and microscale driving forces for cleavage fracture. It has been successfully applied to predict constraint effects on cleavage fracture and on the scatter of macroscopic fracture toughness values. This paper provides a brief review of the research conducted by the authors in recent years to extend the engineering applicability of the Weibull stress model to predict cleavage fracture in ferritic steels. These recent efforts have introduced a threshold value in the Weibull stress model, introduced more robust calibration methods for determination of model parameters, predicted experimentally observed constraint effects, demonstrated temperature and loading rate effects on the model parameters, and expanded the original Beremin model to include the effects of microcrack nucleation.
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Hojo, Kiminobu, Naoki Ogawa, Kentaro Yoshimoto, Takatoshi Hirota, and Yasuto Nagoshi. "Investigation of Temperature Dependence of Weibull Parameters of the Beremin Model in Ductile-Brittle Transition Temperature Region." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21651.

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Abstract The Beremin model can handle both the plastic constraint effect and data scatter for brittle fracture. Many researchers have been investigating its applicability for more than 30 years and are still discussing the temperature dependence of Weibull parameters used in this model. The authors have already presented the experimental and analytical investigation results for low alloy steel using C(T) specimens in several temperature conditions. The analysis suggested that the Weibull parameters are constant for temperature. In this paper fracture toughness tests of carbon steel using SE(B) specimens at −120°C and −50°C were performed and the Weibull parameters were determined by the test results at −120°C. KJc of the 5% lower bound and the 95% upper bound confidence limit at −50°C were predicted using the Weibull parameters from −120°C. As a result, the predicted 5% lower bound confidence limit was close to the lowest experimental KJc value, whose fracture mode was nearly cleavage fracture. This means there is no temperature dependency of the Weibull parameters and the results are similar to those of low alloy steel. On the other hand the predicted 95% upper bound confidence limit had a large gap when compared with the experimental upper KJc value. One of the reasons of large gap was estimated that the parameter fitting of the GTN model was performed without consideration of the parameters relating to the second void effect and a precise stress-strain field after a large ductile crack growth with several millimeters was not obtained.
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Jang, Youn-Young, Ji-Hee Moon, Nam-Su Huh, Ki-Seok Kim, Woo-Yeon Cho, Myeong-Woo Lee, and Yun-Jae Kim. "Evaluations of Ductile and Cleavage Fracture Using Coupled GTN and Beremin Model in API X70 Pipelines Steel." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96483.

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Abstract This paper is aimed to characterize ductile and cleavage fracture behavior of API X70 pipeline steel and investigate applicability of a micro-damage mechanics model to simulate static and dynamic crack propagation of single-edge notched tension (SENT) and drop-weight tear test (DWTT) specimens, as well as a local approach to describe cleavage fracture behavior. Gurson-Tvergaard-Needleman (GTN) model was applied to simulate ductile fracture behavior of SENT and DWTT specimens, where GTN model has been widely known for well-established model to characterize micro-damage process of void nucleation, growth and coalescence. As for a local approach, Beremin model was considered to estimate probability of cleavage fracture. In this regard, this study was especially focused on abnormal fracture appearance of DWTT specimen. In the present study, firstly, experiment data from tensile specimen test was used to obtain plastic flow curve (i.e. stress and strain curve). And load-CMOD and J-integral/CTOD resistance curves obtained from SENT test were used to characterize static ductile fracture and calibrate GTN model parameters for X70 pipeline steel. And the calibrated GTN model parameters were verified by comparing experiment data from DWTT test such as load-displacement and crack length-time curves with those from FE analysis. To accommodate dynamic effect on material properties, rate-dependent stress-strain curves were considered in FE analyses. To describe cleavage fracture, the Weibull stress was calculated from FE analyses of DWTT and Weibull parameters were calibrated by comparing with probability distribution of cleavage fracture from experiment data of DWTT specimen. Using Weibull parameters, the whole of cleavage fracture probability can be estimated as ductile shear area of DWTT specimen increases.
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Parrot, A., P. Forget, and A. Dahl. "Evaluation of Fracture Toughness From Instrumented Charpy Impact Tests for a Reactor Pressure Vessel Steel." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1982.

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The monitoring of neutron induced embrittlement of nuclear power plants is provided using Charpy impact test in the surveillance program. However structural integrity assessments require the fracture toughness. Some empirical formulas have been developed but no direct relationship was found. The aim of our study is to determine the fracture toughness of a Reactor Pressure Vessel steel from instrumented Charpy impact test using local approach to fracture. This non-empirical method has been applied in the brittle domain as well as in the ductile to brittle transition for an A508 C1.3 steel. In the brittle domain, fracture occurs by cleavage and can be modeled with the Beremin model. Fracture toughness has been successfully determined from Charpy impact tests results and the influence of several parameters (mesh design, Beremin model with one or two parameters, number of Charpy impact tests results) on the results was considered. In the ductile to brittle transition, cleavage fracture is preceded by ductile crack growth. Ductile tearing has been accounted for in the simulations with the Rousselier model whereas cleavage fracture is still described with the Beremin model. The determination of fracture toughness from Charpy impact tests gave encouraging results but finite element simulations have to be refined in order to improve predictions.
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Hojo, Kiminobu, Takatoshi Hirota, Naoki Ogawa, Kentaro Yoshimoto, Yasuto Nagoshi, and Shinichi Kawabata. "Fracture Analysis of Ductile-Brittle Transition Temperature Region Considering Specimens With Different Constraints." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84385.

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Fracture toughness from a CT specimen is used as a material constant for fracture evaluation, but it has a large constraint, which provides too conservative evaluation results. In ductile to brittle transition temperature (DBTT) region ferritic steel which is material of RPV has a large scatter and it becomes important to know the accurate scatter of an irradiated material because of less margin of RPV’s integrity after a long term operation. In this paper to establish a more precise fracture evaluation method in DBTT region for an irradiated RPV with a postulated surface flaw, fracture analysis procedures considering constraint effect, the Beremin model and damage mechanics model and a coupled model of these models were applied to the specimens with different constraints, which were 1/2TCT specimens and flat plate specimens with a semicircular flaw under tensile load. For evaluation of pure cleavage fracture of flat plate specimens, a Beremin model with plastic strain effect was applied with incorporation of plastic strain effect. Further, for ductile fracture, the local strain criterion of ASME Section VIII was applied to the specimens with different geometries and its applicability was discussed.
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