Şimşir, Caner
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Name Variants
C.,Simsir
Simsir, Caner
Şimşir, Caner
C., Simsir
Simsir,C.
C.,Şimşir
S.,Caner
S., Caner
Caner, Simsir
Şimşir,C.
Caner, Şimşir
Ş.,Caner
Simsir, C.
Simsir, Caner
Şimşir, Caner
C., Simsir
Simsir,C.
C.,Şimşir
S.,Caner
S., Caner
Caner, Simsir
Şimşir,C.
Caner, Şimşir
Ş.,Caner
Simsir, C.
Job Title
Doktor Öğretim Üyesi
Email Address
caner.simsir@atilim.edu.tr
Main Affiliation
Manufacturing Engineering
Status
Former Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
1NO POVERTY
0
Research Products
2ZERO HUNGER
0
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3GOOD HEALTH AND WELL-BEING
2
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4QUALITY EDUCATION
0
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
0
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
0
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
3
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10REDUCED INEQUALITIES
0
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11SUSTAINABLE CITIES AND COMMUNITIES
0
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
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13CLIMATE ACTION
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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This researcher does not have a Scopus ID.
This researcher does not have a WoS ID.
Scholarly Output
33
Articles
14
Views / Downloads
0/0
Supervised MSc Theses
12
Supervised PhD Theses
0
WoS Citation Count
176
Scopus Citation Count
228
Patents
0
Projects
0
WoS Citations per Publication
5.33
Scopus Citations per Publication
6.91
Open Access Source
6
Supervised Theses
12
| Journal | Count |
|---|---|
| Computational Materials Science | 3 |
| Materialwissenschaft und Werkstofftechnik | 3 |
| Hittite Journal of Science and Engineering | 2 |
| Materials Performance and Characterization | 2 |
| International Conference on the Technology of Plasticity (ICTP) -- SEP 17-22, 2017 -- Cambridge, ENGLAND | 1 |
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21 results
Scholarly Output Search Results
Now showing 1 - 10 of 21
Article Citation - WoS: 7Citation - Scopus: 9Parameter Identification for an Armstrong-Frederick Hardening Law for Supercooled Austenite of Sae 52100 Steel(Elsevier, 2010) Wolff, Michael; Suhr, Bettina; Simsir, CanerThe mechanical properties of the supercooled austenite phase are sensitive parameters for the prediction of distortion of the components during heat treatments as the inelastic deformation occurs mostly on the soft austenite phase. Recent studies clarified that one of the overlooked issues related with the thermomechanical behavior of supercooled austenite during heat treatment and welding is its complicated cyclic hardening behavior (cf. Simsir et al., Acta Materialia, 2010). Based on those concerns, this article presents an optimization method for determination of temperature-dependent parameters for an Armstrong-Frederick model with combined non-linear kinematic and isotropic hardening, which can potentially pull the quality of simulations through. The results indicate that the proposed approach yields satisfactory results for simulation of heat treatments and welding even with a small and imperfect experimental data pool. (C) 2010 Elsevier B.V. All rights reserved.Article Citation - WoS: 6Citation - Scopus: 6Excessive Damage Increase in Dual Phase Steels Under High Strain Rates and Temperatures(Sage Publications Ltd, 2021) Cobanoglu, Merve; Ertan, Rasim K.; Simsir, Caner; Efe, MertDamage formation in dual phase steels is a complex process and it may be sensitive to the deformation conditions and mechanisms. In this study, the damage parameter is measured and compared under quasi-static and industrial forming conditions (temperatures: 25 vs 200, 300 degrees C and strain rates: 10(-3)vs 10 s(-1)) for DP590 and DP800 steels. Resonance frequency and ultrasonic sound velocity techniques are utilized for the measurements to test the effectiveness and validity of each technique. At a given strain, the damage values can be up to 700% higher at industrial forming conditions, under which dynamic strain aging (DSA) controls the deformation behavior. DSA results in lower formability and is the likely mechanism responsible from the abnormal damage evolution. Measured damage parameters are also confirmed with the void fraction characterization by microscopy, which also provided details on the void shape and distribution with respect to the deformation conditions.Conference Object Citation - Scopus: 2Fem Modeling of the Distortion of Blank/Case Hardened Gear Blanks Due To Chemical Banding(2012) Şimşir,C.; Hunkel,M.; Lütjens,J.; Rentsch,R.In this study, a FEM process-chain simulation model is presented for the prediction of distortion of blank and case-hardened SAE 5120 (EN 20MnCr5) steel gear blanks. For this purpose, the evolution of the banded microstructure stemming from the continuous casting process was traced by computer simulations of subsequent shape rolling, forging and machining steps. The calculated flow-net was imported into the in-house heat treatment simulation module empowered with the recently developed "Anisotropic Transformation Strain (ATS)" model which enables the inclusion of the effect of banded microstructure on distortion. Then, both blank and case-hardening processes were simulated and verified experimentally. The results indicate good predictions of the dishing directions and dishing-free cutting strategy in both cases; the dishing magnitude is predicted well in blank-hardening simulations while the quality of the prediction is reasonable in case-hardening. Copyright © 2012 ASM International® All rights reserved.Article Citation - WoS: 46Citation - Scopus: 51Multiscale modeling of tempering of AISI H13 hot-work tool steel - Part 1: Prediction of microstructure evolution and coupling with mechanical properties(Elsevier, 2016) Eser, A.; Broeckmann, C.; Simsir, C.In the first part of this two part study, the mechanical properties necessary for the simulation of tempering of an AISI H13 (DIN 1.2344, X40CrMoV5-1) tool steel was derived using physically based precipitation simulations and microstructure-property relationships. For this purpose, the precipitation of fine carbides were simulated using a thermo-kinetic software which allows prediction of the evolution of precipitation/dissolution reactions and the particle sizes. Then, those microstructural findings were coupled with physically based microstructure-property models to predict the yield stress, flow curve and creep properties. The predicted mechanical properties were verified with corresponding experiments and a good agreement was found. In the second part of this study, those properties were coupled with a Finite Element (FE) model in order to predict the relaxation of internal stresses and the evolution of deformations at the macroscopic scale. (C) 2015 Elsevier B.V. All rights reserved.Editorial Citation - WoS: 2Citation - Scopus: 2Simulation and Optimization in Materials Technology(Hindawi Ltd, 2014) Guerrero, Martha; Simsir, Caner; Deus, Augusto; Sarler, Bozidar[No Abstract Available]Conference Object Citation - Scopus: 10The Prediction of the Distortion of Blank-Hardened Gear Blanks by Considering the Effect of Prior Manufacturing Operations(2011) Şimşir,C.; Eisbrecher,I.; Hunkel,M.; Lübben,T.; Hoffmann,F.This article presents a recently developed mathematical model for Integration of the effects of prior manufacturing steps into heat treatment simulations by considering the modification of the banded microstructure in forming and machining processes. The model was justified by simulating the heating, austenitizatlon and quenching of dilatometer specimens machined from the forged discs with distinct orientations to the banded microstructure. Then, It Is tested In prediction of dishing of blank-hardened gear blanks, which cannot be reproduced by previously available models. The model provides promising results for process chain simulation and development of system-oriented measures for the solution of heat treatment distortion problem. © 2011 Wiley-VCH Verlag GmbH & Co. KGaA. Weinheim.Article Citation - WoS: 13Citation - Scopus: 19Multiscale Modeling of Tempering of Aisi H13 Hot-Work Tool Steel - Part 2: Coupling Predicted Mechanical Properties With Fem Simulations(Elsevier Science Bv, 2016) Eser, A.; Broeckmann, C.; Simsir, C.Simulation of austenitization and quenching of steel using the Finite Element Method (FEM) is nowadays a common tool to predict residual stresses and deformations during these processes. However the simulation of tempering, which determines the final residual stresses and distortions has been often neglected or performed in a purely phenomenological and highly simplified way. The objective of this study is to precisely predict the relaxation of internal stresses during tempering, taking explicitly into account the evolution of the microstructure. Mechanical properties which determine the relaxation of stress; namely the drop of the yield stress and the creep mechanism are the key factors for the success of the simulation. These mechanical parameters can be determined experimentally for a specific tempering temperature. However tempering temperature for most steels varies for each industrial application in order to adjust the desired hardness-toughness relation. Consequently, experimentally measurement of decisive mechanical properties which determine the amount of stress relaxation for each tempering temperature is very costly. Therefore, these material parameters were simulated from physically based material models with coupled microstructural simulations in the first part of this two-part investigation. In this part of the study, the simulated mechanical properties will be coupled with the FEM simulations using "Abaqus (R)", in order to simulate the stress relaxation during the tempering process of a thick-walled workpiece made of hot-work tool steel AISI H13 (DIN 1.2344, X40CrMoV5-1). Utilizing this methodology, different tempering conditions (soaking time, tempering temperature) can be considered in the model to predict the stress relaxation in macroscopic scale. (C) 2015 Elsevier B.V. All rights reserved.Article Strain Hardening Behavior Characterization of Dual Phase Steels(2018) Davut, Kemal; Şimşir, Caner; Çetin, BarişThe requirements for higher passenger safety, improved fuel economy and weight reductionin automobile industry necessitates the usage of advanced high strength steel (AHSS)grades. Dual phase (DP) steels are the most widely used one among AHSS. DP steels becomeincreasingly popular, since they provide a combination of sufficient formability at room temperatureand tensile strength over 1000 MPa. The current standards for DP steels only specifiesyield and tensile strength. Steels from various producers have considerably different compositionand microstructure; however they still have the same grade name. Combined withthe inherited heterogeneous microstructure, those steels exhibit different strain hardeningbehavior. The aim of this study is to evaluate the strain hardening behavior of DP800 steels,obtained from different vendors and thus having different compositions and microstructures.The strain hardening behavior was characterized with tensile tests performed along rollingand transverse directions. The microstructure has been characterized with optical andscanning electron microscopes. The martensite fraction, grain size of ferrite and chemicalcomposition has been correlated to the strain hardening behavior. The results show thatthe steel with more micro-alloying addition has finer ferritic grain size, which cause higherinitial strain hardening rate. The steel with higher Mn and Cr has higher martensite fraction,which cause strain hardening rate to be higher at higher strain levels.Article Citation - WoS: 17Citation - Scopus: 26Process-Chain Simulation for Prediction of the Distortion of Case-Hardened Gear Blanks(Wiley-v C H verlag Gmbh, 2012) Simsir, C.; Hunkel, M.; Luetjens, J.; Rentsch, R.; Lütjens, J.In this study, a process-chain simulation model is presented for the prediction of distortion of low-pressure gas carburised SAE 5120 (EN 20MnCr5) steel gear blanks. For this purpose, the evolution of the banded microstructure stemming from the continuous casting process was traced by computer simulations of subsequent shape rolling, forging and machining steps. Then, the simulated local orientation angles of the deformed banded microstructure are transferred to heat treatment simulation module as an input for the recently developed material model that exploits the Anisotropic Transformation Strain (ATS) concept to reproduce the dishing behaviour which cannot be reproduced by former models. The results indicate that the suggested procedure provides quite good predictions of the dishing directions and dishing-free cutting strategy, whereas; the dishing magnitude is predicted fairly reasonably considering large scatters in the experiments.Article Citation - Scopus: 2Simulation Trends in Quenching Technology for Automotive Components(Maney Publishing, 2014) Felde,I.; Simsir,C.Quenching technology is widely used in automotive industry from a simple immersion quenching of gears up to the complex production technology of press hardening. The selection of process parameters to develop the desired properties is challenging due to the complexity of the physical phenomena occurring during the manufacturing cycle. In the last decades several computational methods have been applied successful to optimise the heat treatment processes. This paper is focusing on some examples demonstrating the state of the art of the simulation tools, including the physical phenomena of quenching, the theoretical background of the coupled models used for estimation the microstructure, mechanical properties and deformation of heat treated automotive components. © 2014 IHTSE Partnership.
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