Friedlein, Johannes, M.Sc.
Johannes Friedlein, M. Sc.
Department of Mechanical Engineering
Institute of Applied Mechanics (LTM, Prof. Steinmann)
Paul-Gordan-Straße 3
91052 Erlangen
- Phone number: +49 9131 85-64400
- Fax number: +49 9131 85-64413
- Email: johannes.friedlein@fau.de
- Website: https://www.ltm.tf.fau.de/person/friedlein-johannes-m-sc/
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Schädigungsmodellierung für die Simulation mechanischer Fügeprozesse (A05)
(Third Party Funds Group – Sub project)
Overall project: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten
Project leader: ,
Term: since 1. January 2019
Acronym: SFB/TRR 285 A05
Funding source: DFG / Sonderforschungsbereich / Transregio (SFB / TRR)
URL: https://trr285.uni-paderborn.de/teilprojekte-1/a05The aim of the subproject is to model the material behaviour during mechanical joining processes as accurately as possible. Challenges arise in the simulation of the strain rate and temperature dependency of the materials as well as in the coupling of plasticity, ductile damage, and temperature. Moreover, novel numerical approaches are investigated for joining process simulations and combined with the developed material models. Both will be implemented accurately and efficiently, and experimentally validated.
2026
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One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity
In: Finite Elements in Analysis and Design 253 (2026), Article No.: 104471
ISSN: 0168-874X
DOI: 10.1016/j.finel.2025.104471
2025
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Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations
In: Journal of Advanced Joining Processes 11 (2025), Article No.: 100299
ISSN: 2666-3309
DOI: 10.1016/j.jajp.2025.100299 - , , :
Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining
In: Journal of the Mechanics and Physics of Solids 196 (2025), Article No.: 106026
ISSN: 0022-5096
DOI: 10.1016/j.jmps.2025.106026
2024
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Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining
In: Journal of Manufacturing and Materials Processing 8 (2024), Article No.: 157
ISSN: 2504-4494
DOI: 10.3390/jmmp8040157
2023
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Numerical analysis of failure modeling in clinching process chain simulation
20th International Conference on Sheet Metal, SHEMET 2023 (Erlangen, DEU, 2. April 2023 - 5. April 2023)
In: Marion Merklein, Hinnerk Hagenah, Joost R. Duflou, Livan Fratini, Fabrizio Micari, Paulo Martins, Gerson Meschut (ed.): Materials Research Proceedings 2023
DOI: 10.21741/9781644902417-33 - , , , , , , :
A calibration method for failure modeling in clinching process simulations
20th International Conference on Sheet Metal, SHEMET 2023 (Erlangen, DEU, 2. April 2023 - 5. April 2023)
In: Marion Merklein, Hinnerk Hagenah, Joost R. Duflou, Livan Fratini, Fabrizio Micari, Paulo Martins, Gerson Meschut (ed.): Materials Research Proceedings 2023
DOI: 10.21741/9781644902417-34 - , , , , , , :
Influence of plastic orthotropy on clinching of sheet metal
20th International Conference on Sheet Metal, SHEMET 2023 (Erlangen, DEU, 2. April 2023 - 5. April 2023)
In: Marion Merklein, Hinnerk Hagenah, Joost R. Duflou, Livan Fratini, Fabrizio Micari, Paulo Martins, Gerson Meschut (ed.): Materials Research Proceedings 2023
DOI: 10.21741/9781644902417-17 - , , :
Efficient gradient enhancements for plasticity with ductile damage in the logarithmic strain space
In: European Journal of Mechanics A-Solids 99 (2023), Article No.: 104946
ISSN: 0997-7538
DOI: 10.1016/j.euromechsol.2023.104946
2022
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Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal
12th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2022 (Toronto, ON, CAN, 10. July 2022 - 14. July 2022)
In: Kaan Inal, Michael Worswick, Cliff Butcher, Julie Levesque (ed.): Minerals, Metals and Materials Series 2022
DOI: 10.1007/978-3-031-06212-4_31 - , , :
Observations on additive plasticity in the logarithmic strain space at excessive strains
In: International Journal of Solids and Structures 239 (2022)
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2021.111416
2021
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A finite plasticity gradient-damage model for sheet metals during forming and clinching
19th International Conference on Sheet Metal, SheMet 2021 (Virtual, Online, 29. March 2021 - 31. March 2021)
In: Key Engineering Materials 2021
DOI: 10.4028/www.scientific.net/KEM.883.57 - , , , , :
Inverse parameter identification of an anisotropic plasticity model for sheet metal
40th International Deep-Drawing Research Group Conference (IDDRG) (, ELECTR NETWORK)
In: INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2021), BRISTOL: 2021
DOI: 10.1088/1757-899X/1157/1/012004