Results 1 to 10 of about 18 (18)

On the numerical homogenization of real polycrystalline microstructures

Proceedings in Applied Mathematics and Mechanics, Volume 22, Issue 1, March 2023., 2023
Abstract The FE2 method, cf. [1], a direct micro‐macro homogenization approach, has become a standard procedure for scale‐transition applications. Therein, the modeling of a micro‐heterogeneous material described by a representative volume element (RVE) based on realistic microstructures can give rise to a barely unmanageable computational effort ...
Lisa Scheunemann, Jörg Schröder
wiley   +1 more source

Berechnung von punktgestützten Verglasungen mit Senkkopfhaltern

ce/papers, Volume 5, Issue 1, Page 171-182, February 2022., 2022
Abstract Nach jetzigem Stand ist die Berechnung punktgestützter Verglasungen nach dem vereinfachten Verfahren der DIN 18008‐3 auf zylindrische Bohrungen mit Tellerhaltern beschränkt. Flächenbündige Senkkopfhalter mit konischer Bohrung im Glas werden nicht berücksichtigt.
Jochen Menkenhagen, Prasantha Lama
wiley   +1 more source

Remarks on a primal‐dual interior point algorithm for single crystal plasticity

Proceedings in Applied Mathematics and Mechanics, Volume 21, Issue 1, December 2021., 2021
Abstract In the field of single crystal plasticity, different algorithms exist for the solution of the constitutive equations. They can be grouped into rate independent and rate dependent approaches, where both classes are governed by inherent shortcomings, as discussed in, e.g., [3].
Lisa Scheunemann, Paulo S. B. Nigro, Jörg Schröder   +2 more
wiley   +1 more source

3D‐multilayer simulation of microstructure and mechanical properties of porous materials by selective sintering

GAMM-Mitteilungen, Volume 44, Issue 4, November 2021., 2021
Abstract This work presents multilayer phase‐field simulation of selective sintering process and the calculation of effective mechanical properties and residual stress of the microstructure using the finite element method. The dependence of the effective properties and residual stress on the process parameters, such as beam power and scan speed, are ...
Xiandong Zhou, Yangyiwei Yang, Somnath Bharech, Binbin Lin, Jörg Schröder, Bai‐Xiang Xu   +5 more
wiley   +1 more source

Experimental and Numerical Investigations of the Development of Residual Stresses in Thermo-Mechanically Processed Cr-Alloyed Steel 1.3505

Metals, 2019
Residual stresses in components are a central issue in almost every manufacturing process, as they influence the performance of the final part. Regarding hot forming processes, there is a great potential for defining a targeted residual stress state, as ...
Bernd-Arno Behrens, Jörg Schröder, Dominik Brands, Lisa Scheunemann, Rainer Niekamp, Alexander Chugreev, Mohammad Sarhil, Sonja Uebing, Christoph Kock   +8 more
doaj   +1 more source

A mixed least‐squares finite element formulation with explicit consideration of the balance of moment of momentum, a numerical study

GAMM-Mitteilungen, Volume 43, Issue 2, June 2020., 2020
Abstract Important conditions in structural analysis are the fulfillment of the balance of linear momentum (vanishing resultant forces) and the balance of angular momentum (vanishing resultant moment), which is not a priori satisfied for arbitrary element formulations.
Maximilian Igelbüscher, Jörg Schröder, Alexander Schwarz   +2 more
wiley   +1 more source

Verankerung eines digitalen Förderkonzepts in den Studienstart der Bauwissenschaften

, 2018
Das BMBF-Verbundforschungsprojekt FUNDAMENT (Förderung des individuellen Lernerfolgs mittels digitaler Medien im Bauingenieurstudium) hat die Zielsetzung, die individuellen Lernprozesse von Studierenden der Fachrichtung Bauwissenschaften zu fördern. Hierzu wurde ein digitales Förderkonzept entwickelt, welches in der Studienvor- und -eingangsphase in ...
Pelz, Marcel, Lang, Martin, Özmen, Yasemin, Schröder, Jörg, Walker, Felix, Müller, Ralf   +5 more
openaire   +2 more sources

Analysis of Dynamic Problems in Fully Saturated Porous Media Using an Embedded Velocity Integration Formulation With an Adaptive Runge–Kutta Method

International Journal for Numerical Methods in Engineering, Volume 126, Issue 1, 15 January 2025.
ABSTRACT This contribution presents a dynamic binary Theory of Porous Media (TPM) model using an embedded velocity integration (EVI) formulation. The inclusion of dynamic effects into a TPM model leads to an increase in the number of unknown quantities and may also limit the choice of fitting time integration methods.
J. Sunten, A. Schwarz, J. Bluhm, J. Schröder   +3 more
wiley   +1 more source

Elasto-plastic residual stress analysis of selective laser sintered porous materials based on 3D-multilayer thermo-structural phase-field simulations

npj Computational Materials
Residual stress and plastic strain in additive manufactured materials can exhibit significant microscopic variation at the powder scale, profoundly influencing the overall properties of printed components.
Yangyiwei Yang, Somnath Bharech, Nick Finger, Xiandong Zhou, Jörg Schröder, Bai-Xiang Xu   +5 more
doaj   +1 more source

Laudatio durch den Vertreter der Klasse für Bauwissenschaften Prof. Dr.-Ing. H. Duddeck

, 1983
openaire   +1 more source