Explanipedia

Effect of loading rate, viscosity, and binder activation on the bending response of an infiltrated UD-NCF Open

Renan Miranda Portela, B.W. Schafer, Luise Kärger, Alfredo R. de Faria, John Montesano · 2025

Rate-dependent 3D forming simulation of thermoplastic composite materials using visco-hyperelastic material modeling and 3D hexahedral solid-shell elements Open

Johannes Mitsch, B.W. Schafer, Luise Kärger · 2025

How Usable is Automated Feature Engineering for Tabular Data? Open

B.W. Schafer, Lennart Purucker, Maciej Janowski, Frank Hutter · 2025

Tabular data, consisting of rows and columns, is omnipresent across various machine learning applications. Each column represents a feature, and features can be combined or transformed to create new, more informative features. Such feature…

3D solid-shell element for macroscopic composite forming simulation enabling thickness prediction Open

B.W. Schafer, Johannes Mitsch, Luise Kärger · 2025

Capabilities and limitations of pure-shear based macroscopic forming simulations for 0°/90° biaxial non-crimp fabrics Open

B.W. Schafer · 2025

Macroscopic modeling of a non-crimp fabric’s (NCF’s) forming behavior is challenging as it strongly depends on the textile architecture, fiber type, and stitching type. While shear is the main deformation mode of woven fabrics, membrane mo…

Experimental analysis of the forming behavior of uni- and bidirectional non-crimp fabrics for different geometries Open

B.W. Schafer, Ruochen Zheng, Julien Colmars, Auriane Platzer, Naïm Naouar , et al. · 2024

A hyperelastic approach for modeling the membrane behavior in finite element forming simulation of unidirectional non-crimp fabrics (UD-NCF) Open

B.W. Schafer, Dominik Dörr, Ruochen Zheng, Naïm Naouar, Luise Kärger · 2024

International audience

Investigation of the friction behavior of uni- and bidirectional non-crimp fabrics Open

B.W. Schafer · 2024

The friction behavior of engineering textiles directly affects the forming quality during composite molding processes. In forming tests of dry engineering textiles large relative slip between plies and the tools is observed. The resulting …

Mesoscopic finite element modeling of biaxial non-crimp fabric including representative stitch pattern Open

Ruochen Zheng, Naïm Naouar, Julien Colmars, Auriane Platzer, B.W. Schafer , et al. · 2024

International audience

Membrane behavior of uni- and bidirectional non-crimp fabrics in off-axis-tension tests Open

B.W. Schafer, Ruochen Zheng, Naïm Naouar, Luise Kärger · 2023

A unit-cell mesoscale modelling of biaxial non-crimp-fabric based on a hyperelastic approach Open

Ruochen Zheng, B.W. Schafer, Auriane Platzer, Colmars Julien, Naïm Naouar , et al. · 2023

Understanding the mechanical properties of carbon fiber reinforcements is necessary for the simulation of forming processes. A unit-cell mesoscopic model provides a tool to implement virtual material characterizations which can be served a…

Investigation of the compaction behavior of uni- and bidirectional non-crimp fabrics Open

B.W. Schafer · 2023

The through-thickness compaction behavior of engineering textiles significantly influences the resulting component properties during liquid composite molding processes (LCM). It determines the final fiber volume content and thus the necess…

Investigation of the Membrane Behavior of UD-NCF in Macroscopic Forming Simulations Open

B.W. Schafer, Stefan Haas, Philippe Boisse, Luise Kärger · 2022

Unidirectional non-crimp fabrics (UD-NCF) provide an exceptionally high lightweight potentialcompared to other dry fabrics. However, their defect-free formability is limited compared towoven or biaxial fabrics due to their susceptibility t…

Potential and challenges of a solid-shell element for the macroscopic forming simulation of engineering textiles Open

B.W. Schafer, Dominik Dörr, Luise Kärger · 2021

Finite element (FE) forming simulation offers the possibility of a detailed analysis of the deformation behaviour of engineering textiles during forming processes, to predict possible manufacturing effects such as wrinkling or local change…

Prediction of forming effects in UD-NCF by macroscopic forming simulation – Capabilities and limitations Open

Luise Kärger, Siegfried Galkin, Eckart Kunze, Μaik Gude, B.W. Schafer · 2021

Unidirectional non-crimp fabrics (UD-NCF) provide the highest lightweight potential among dry textile materials. Compared to multiaxial NCF, the fabric layers in UD-NCF enable a more targeted tailoring. Compared to woven fabrics, the fibre…

Reduced-Integrated 8-Node Hexahedral Solid-Shell Element for the Macroscopic Forming Simulation of Continuous Fibre-Reinforced Polymers Open

B.W. Schafer, Dominik Dörr, Luise Kärger · 2020

Experimental behaviour of stainless steel plate girders under combined bending and shear Open

X.W. Chen, Huanxin Yuan, E. Real, Xin Du, B.W. Schafer · 2019

Experimental and numerical investigation of cold-formed steel double angle members under compression Open

Wanderson Fernando Maia, Luiz Carlos Marcos Vieira, B.W. Schafer, Maximiliano Malite · 2016

Probing the characteristics of potential energy surfaces Open

B.W. Schafer · 2015

The potential energy surface of multi-atomic systems encodes important aspects such as thermodynamic and dynamic properties or the equilibrium geometries. Collections of low-energy minima and the reaction pathways that connect the minima w…

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