Person

Dr.-Ing.

Johannes Lohmar

Oberingenieur - Flach- & Langprodukte, Werkstoffmodellierung

Institut für Bildsame Formgebung

Adresse

Raum: 101

Intzestraße 10

52072 Aachen

Kontakt

workPhone
Telefon: +49 241 80 95934
Fax: +49 241 80 92234
 

Publikationen

Quelle Autor(en)
[Beitrag zu einem Tagungsband]
Effiziente Richtstrategien basierend auf Data-Mining und Modellierung
In: [33. ASK Umformtechnik "Ideen Form geben", 2019-03-28 - 2019-03-29, Aachen, Germany], 245-254, 2019
Laugwitz, Marvin
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
Jochum, M.
Scheffler, T.
et al.
[Fachzeitschriftenartikel]
Vollautomatische Charakterisierung der Ebenheit von Grobblech
In: Stahl und Eisen, 138 (10), 39-44, 2018
Laugwitz, Marvin
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
Seuren, Simon
Jochum, Martin
[Fachzeitschriftenartikel]
Improving the thickness accuracy of cold rolled narrow strip by piezoelectric roll gap control at high rolling speed
In: CIRP annals, manufacturing technology, 67 (1), 313-316, 2018
[DOI: 10.1016/j.cirp.2018.04.107]
Stockert, Sven Matthias
Wehr, Matthias Ludwig
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
Abel, Dirk
[Buch, Doktorarbeit]
Untersuchungen zur inversen Identifikation der Parameter von Materialmodellen für das Grobblechwalzen, 155 Seiten : Illustrationen, Diagramme, 2018
Lohmar, Johannes
[Buchbeitrag, Beitrag zu einem Tagungsband]
Flatness characterisation of hot plates for plate levelling
In: European Steel Technology and Application Days 2017 - ESTAD 2017 : Monday 26 June 2017-Thursday 29 June 2017 : proceedings / ASMET, The Austrian Society for Metallurgy and Materials, 2097-2103, 2017
Laugwitz, Marvin
Seuren, Simon
Jochum, M.
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Development of levelling strategies for heavy plates via controlled FE models
In: International Conference on the Technology of Plasticity, ICTP 2017 : 17-22 September 2017, Cambridge, United Kingdom / Edited by Julian Allwood, 1349-1354, 2017
[DOI: 10.1016/j.proeng.2017.10.895]
Laugwitz, Marvin
Seuren, Simon
Jochum, Martin
Hojda, Stephan
Lohmar, Johannes
et al.
[Buchbeitrag, Beitrag zu einem Tagungsband]
Investigations on Springback in High Manganese TWIP-Steels using U-Profile Draw Bending
In: International Conference on the Technology of Plasticity, ICTP 2017 : 17-22 September 2017, Cambridge, United Kingdom / Edited by Julian Allwood, 1582-1587, 2017
[DOI: 10.1016/j.proeng.2017.10.1052]
Quadfasel, Angela
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Assessment of Flat Rolling Theories for the Use in a Model-Based Controller for High-Precision Rolling Applications
In: Proceedings of the 20th International ESAFORM Conference on Material Forming : ESAFORM 2017 : Dublin, Ireland, 26-28 April 2017 / editors: Dermot Brabazon, Sumsun Naher, Inam Ul Ahad. - B, 190005, 1-6, 2017
[DOI: 10.1063/1.5008218]
Stockert, Sven Matthias
Wehr, Matthias Ludwig
Lohmar, Johannes
Abel, Dirk
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Influence of transient strain rates on material flow stress and microstructure evolution
In: Proceedings of the 20th International ESAFORM Conference on Material Forming : ESAFORM 2017 : Dublin, Ireland, 26-28 April 2017 / editors: Dermot Brabazon, Sumsun Naher, Inam Ul Ahad. - B, 160004, 1-6, 2017
[DOI: 10.1063/1.5008179]
Dierdorf, Jens
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Model for texture evolution in cold rolling of 2.4 wt.-% Si non-oriented electrical steel
In: Proceedings of the 20th International ESAFORM Conference on Material Forming : ESAFORM 2017 : Dublin, Ireland, 26-28 April 2017 / editors: Dermot Brabazon, Sumsun Naher, Inam Ul Ahad. - B, 170005, 1-6, 2017
[DOI: 10.1063/1.5008203]
Wei, Xuefei
Hojda, Stephan
Dierdorf, Jens
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Investigation of Springback of High Manganese TWIP-Steels Using Three-Point-Bending
In: [3rd International Conference on High Manganese Steels, HMnS2016, 16.11.2016-18.11.2016, Chengdu, Peoples R China], 2016
Quadfasel, Angela
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Fachzeitschriftenartikel]
Investigation on Hardening and Softening Behavior of Steel after Rapid Strain Rate Changes
In: Key engineering materials : KEM, 716, 121-128, 2016
[DOI: 10.4028/www.scientific.net/KEM.716.121]
Dierdorf, Jens
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband, Fachzeitschriftenartikel]
Extended Conical Tube-Upsetting Test to Investigate the Evolution of Friction Conditions
In: Key engineering materials, 716, 157-164, 2016
[DOI: 10.4028/www.scientific.net/KEM.716.157]
Teller, Marco
Klubakov, Alexej
Franzke, Martin
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Precise Prediction of Microstructure Properties with Minimal Experimental Effort for the Nickel-Base Alloy Inconel 718
In: [WGP Congress 2016 / Edited by Jens P. Wulfsberg, Marc Fette, Tobias Montag], 43-50, 2016
[DOI: 10.4028/www.scientific.net/AMR.1140.43]
Krämer, Alexander
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
Development of a Laser Triangulation Gauge for High Precision Strip Thickness Control
In: [ WGP Congress 2016 / Edited by Jens P. Wulfsberg, Marc Fette, Tobias Montag], 107-114, 2016
[DOI: 10.4028/www.scientific.net/AMR.1140.107]
Stockert, Sven
Wehr, Matthias
Lohmar, Johannes
Hirt, Gerhard Kurt Peter
Abel, Dirk
[Buchbeitrag, Beitrag zu einem Tagungsband]
Crystal plasticity finite element analysis of texture evolution during cold rolling of a non-oriented electrical steel
In: 10th International Rolling Conference and the 7th European Rolling Conference : June 6-9, 2016 Graz, Austria / organised by ASMET - The Austrian Society for Metallurgy and Materials ; chairman: Bruno Buchmayr (Montanuniversitaet Loeben), 494-504, 2016
Wei, Xuefei
Hojda, Stephan
Dierdorf, Jens
Lohmar, Johannes
Hirt, Gerhard
[Buchbeitrag, Beitrag zu einem Tagungsband, Fachzeitschriftenartikel]
A New FE-Model for the Investigation of Bond Formation and Failure in Roll Bonding Processes
In: Materials science forum, 854, 152-157, 2016
Pietryga, Michael P.
Lohmar, Johannes
Hirt, Gerhard
[Buchbeitrag, Beitrag zu einem Tagungsband]
Using Data Sampling and Inverse Optimization for the Reduction of the Experimental Effort in the Characterization of Hot Working Behaviour for a Case Hardening Steel
In: Material Forming : ESAFORM 2015 / edited by Aldo Ofenheimer, Cecilia Poletti, Daniela Schalk-Kitting and Christof Sommitsch, 1351-1356, 2015
[DOI: 10.4028/www.scientific.net/KEM.651-653.1351]
Krämer, Alexander M.
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard Kurt Peter
[Buchbeitrag, Beitrag zu einem Tagungsband]
The inverse determination of material parameters for hot plate rolling exclusively from rolling mill data
In: Proceedings / METEC & 2nd ESTAD 2015, European Steel Technology and Application Days : Düsseldorf, Germany, CCD Congress Center Düsseldorf, 15 - 19 June 2015 / host and organizer: Steel Institute VDEh, 2015
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard
Seuren, Simon
[Fachzeitschriftenartikel]
A new method to determine isothermal flow curves for integrated process and microstructural simulation in metal forming
In: International journal of material forming, 8 (1), 59-66, 2013
[DOI: 10.1007/s12289-013-1147-6]
Xiong, Wei
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard
[Fachzeitschriftenartikel]
Using data sampling and inverse optimization for the reduction of the experimental effort in the characterization of hot working behavior for a case hardening steel
In: Key engineering materials, 651-653, 1351-1356, 2015
Krämer, Alexander
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard
[Fachzeitschriftenartikel]
Materials modelling in industrial bulk metal forming processes and process chains
In: Computer Methods in Materials Science, 15 (1), 5-12, 2015
Hirt, Gerhard
Bambach, Markus
Lohmar, Johannes
Güvenc, Onur
Henke, Thomas
et al.
[Beitrag zu einem Tagungsband]
Fast and Accurate Force Prediction for High Quality Heavy Plates by A State Of The Art Rolling Model Calibrated From Mill Data via Inverse Techniques
In: 1st European Steel Technology & Application Days and 31st Journ'ees Sid'erurgiques Internationales, 2014
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard Kurt Peter
Kiefer, T.
Kotliba, D.
et al.
[Fachzeitschriftenartikel]
The Precise Prediction of Rolling Forces in Heavy Plate Rolling Based on Inverse Modeling Techniques
In: Steel research international, 85 (11), 1525-1532, 2014
[DOI: 10.1002/srin.201300431]
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard
Kiefer, Thomas
Kotliba, Daniel
[Buchbeitrag, Beitrag zu einem Tagungsband]
Comparison of Semi-empirical and Dislocation Density based Material Equations for Fast Modeling of Multistage Hot Working of Steel
In: 11th International Conference on Technology of Plasticity : ICTP 2014 ; 19-24.October 2014, Nagoya, Japan / Edited by Takashi Ishikawa and Ken-ichiro Mori, 268-273, 2014
[DOI: 10.1016/j.proeng.2014.09.162]
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard
[Buchbeitrag, Beitrag zu einem Tagungsband]
Process and materials modelling in incremental bulk metal forming
In: 7th Forming Technology Forum 'Warm and Hot Forming' 15.-16.09.2014, Enschede, Niederlande / Herausgeber: Faculty of Engineering Technology, University of Twente, Enschede, the Netherlands. Ton van den Boogaard, 13-20, 2014
Hirt, Gerhard Kurt Peter
Lohmar, Johannes
Rosenstock, Dirk
Seitz, Joachim Friedhelm
[Beitrag zu einem Tagungsband]
Design and application of an advanced fast rolling model with through thickness resolution for heavy plate rolling
In: Ingot casting, rolling & forging : ICRF, ingot casting, rolling and forging 2014 ; 2nd International Conference ; Milan, Italy, 7 - 9 May 2014 / organised by AIM, Associazione Italiana di Metallurgia, 2014
Lohmar, Johannes
Seuren, Simon
Bambach, Markus
Hirt, Gerhard
[Buchbeitrag, Beitrag zu einem Tagungsband]
Inverse Modeling Techniques for the Precise Prediction of Rolling Forces and Torques in Heavy Plate Rolling
In: Rolling 2013 : 9th International Rolling Conference & 6th European Rolling Conference ; Venice (Italy), June 10 - 12, 2013 ; proceedings / organized by AIM, Associazione Italiana di Metallurgia, 1-8, 2013
Lohmar, Johannes
Bambach, Markus
Hirt, Gerhard Kurt Peter
Kiefer, Thomas
Kotliba, Daniel
[Buchbeitrag, Fachzeitschriftenartikel]
Influence of Different Interpolation Techniques on the Determination of the Critical Conditions for the Onset of Dynamic Recrystallisation
In: Materials science forum, 762, 331-336, 2013
[DOI: 10.4028/www.scientific.net/MSF.762.331]
Lohmar, Johannes
Bambach, Markus
[Buchbeitrag, Beitrag zu einem Tagungsband]
Recent developments in modeling of hot rolling processes: Part I - Fundamentals
In: The 11th International Conference on Numerical Methods in Industrial Forming Processes : NUMIFORM 2013 : Shenyang, China, 6-10 July 2013 / [Herausgeber: Shi-Hong Zhang, Xiang-Hua Liu, Ming Cheng, Juan Li, 06.-10.07.2013, Shenyang, China], 222-230, 2013
[DOI: 10.1063/1.4806828]
Hirt, Gerhard
Bambach, Markus
Seuren, Simon
Henke, Thomas
Lohmar, Johannes
[Buchbeitrag, Beitrag zu einem Tagungsband]
Recent developments in modeling of hot rolling processes: Part II - Applications
In: The 11th International Conference on Numerical Methods in Industrial Forming Processes : NUMIFORM 2013 : Shenyang, China, 6-10 July 2013 / [Herausgeber: Shi-Hong Zhang, Xiang-Hua Liu, Ming Cheng, Juan Li, 06.-10.07.2013, Shenyang, China], 231-238, 2013
[DOI: 10.1063/1.4806829]
Hirt, Gerhard
Bambach, Markus
Seuren, Simon
Henke, Thomas
Lohmar, Johannes
[Fachzeitschriftenartikel]
Influence of Microstructure Representation on Flow Stress and Grain Size Prediction in Through-Process Modeling of AA5182 Sheet Production
In: JOM, 65 (1), 93-98, 2013
[DOI: 10.1007/s11837-012-0485-z]
Lohmar, Johannes
Bambach, Markus
Karhausen, Kai-Friedrich