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Kiefer Bjoern

Technical University of Bergakademie Freiberg

SCHOLARLY PAPERS

5

DOWNLOADS

192

TOTAL CITATIONS

1

Scholarly Papers (5)

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1.

A Phase-Field Regularization of Porous-Ductile Fracture

Number of pages: 27 Posted: 01 Jul 2025 Last Revised: 14 Jan 2026
Dimitrios Kavvadias, Omar El Khatib, Siddhi Avinash Patil, Kiefer Bjoern and Theocharis Baxevanis
University of Houston, Technical University Bergakademie Freiberg, affiliation not provided to SSRN, Technical University of Bergakademie Freiberg and University of Houston
Downloads 79 (809,932)

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Phase-field fracture, Porous ductile materials, Geometric regularization, Gurson-Tvergaard-Needleman model, Finite element analysis

2.

Homogenization of Phase Transforming Materials: The Concept of Phase-Morphology and Variable Scale Separations

Downloads 57 (989,921)
Citation 1

Homogenization of Phase Transforming Materials: The Concept of Phase-Morphology and Variable Scale Separations

Number of pages: 24 Posted: 23 Jul 2024
Vincent Ingo von Oertzen and Kiefer Bjoern
Technical University of Bergakademie Freiberg and Technical University of Bergakademie Freiberg
Downloads 30 (1,356,108)

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Homogenization, phase-field, Weighted Averaging, Variable Scale Separations

Homogenization of Phase Transforming Materials: The Concept of Phase-Morphology and Variable Scale Separations

Number of pages: 24 Posted: 13 Aug 2024
Vincent Ingo von Oertzen and Kiefer Bjoern
Technical University of Bergakademie Freiberg and Technical University of Bergakademie Freiberg
Downloads 27 (1,400,723)
Citation 1

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Homogenization, Variable Scale Separations, Weighted Averaging, Phase Transforming Materials, Phase-Field

3.

Experimental and Numerical Investigations of the Influence of Crack-Tip Constraint on the Ductile Fracture Behavior in Nodular Cast Iron

Number of pages: 22 Posted: 03 Oct 2024
Omar El Khatib, Rinh-Dinh Pham, Geralf Hütter, Sebastian Henkel, Lutz Zybell, Thilo F. Morgeneyer, Horst Biermann and Kiefer Bjoern
Technical University Bergakademie Freiberg, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Université Paris-Dauphine, PSL Research University - MINES ParisTech, affiliation not provided to SSRN and Technical University of Bergakademie Freiberg
Downloads 20 (1,448,301)

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Nodular cast iron, Crack-tip constraint, Ductile failure, J-R-curve, Experimental and numerical investigations

4.

Time Homogenization of Nonlinear Mechanically-Coupled Phase-Field Models Based on Low-Pass Convolution

Number of pages: 26 Posted: 20 May 2026
Vincent Ingo von Oertzen and Kiefer Bjoern
Technical University of Bergakademie Freiberg and Technical University of Bergakademie Freiberg
Downloads 18 (1,470,786)

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time-homogenization, convolution, phase-field modeling, cyclic loading

5.

A Modified Ehlers Model for the Description of Inelastic Behavior of Porous Structures

Number of pages: 33 Posted: 02 Dec 2023
Martin Abendroth, Alexander Mailk and Kiefer Bjoern
affiliation not provided to SSRN, affiliation not provided to SSRN and Technical University of Bergakademie Freiberg
Downloads 18 (1,470,786)

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porous structures, constitutive model, homogenization, data-driven approach