Johannes Friedlein (M. Sc.)

2026

• Friedlein J., Steinmann P., Mergheim J.:
  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

• Friedlein J., Lüder S., Kalich J., Schmale HC., Böhnke M., Schlichter M., Bobbert M., Meschut G., Steinmann P., Mergheim J.:
  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
• Friedlein J., Mergheim J., Steinmann P.:
  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

• Friedlein J., Böhnke M., Schlichter M., Bobbert M., Meschut G., Mergheim J., Steinmann P.:
  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

• Bielak CR., Böhnke M., Friedlein J., Bobbert M., Mergheim J., Steinmann P., Meschut G.:
  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
• Böhnke M., Bielak CR., Friedlein J., Bobbert M., Mergheim J., Meschut G., Steinmann P.:
  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
• Friedlein J., Bielak C., Böhnke M., Bobbert M., Meschut G., Mergheim J., Steinmann P.:
  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
• Friedlein J., Mergheim J., Steinmann P.:
  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

• Friedlein J., Mergheim J., Steinmann P.:
  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. Juli 2022 - 14. Juli 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
• Friedlein J., Mergheim J., Steinmann P.:
  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

• Friedlein J., Mergheim J., Steinmann P.:
  A finite plasticity gradient-damage model for sheet metals during forming and clinching
  19th International Conference on Sheet Metal, SheMet 2021 (Virtual, Online, 29. März 2021 - 31. März 2021)
  In: Key Engineering Materials 2021
  DOI: 10.4028/www.scientific.net/KEM.883.57
• Friedlein J., Wituschek S., Lechner M., Mergheim J., Steinmann P.:
  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