@article{63765,
abstract = {{Rubber-metal bushings (RMB) are critical components in multi-body systems, such as vehicles and industrial machinery, due to their ability to enable relative motion, dampen vibrations, and transmit forces. However, their nonlinear behavior challenges accurate modeling. Traditional physics-based models often fail to balance simplicity, accuracy, and computational efficiency. The growing availability of experimental data offers opportunities to improve RMB modeling through hybrid and data-driven approaches. This study evaluates physics-based, hybrid, and data-driven methods based on predictive accuracy, modeling effort, and computational cost. Hybrid approaches, combining machine learning techniques with physics-based models, are investigated to leverage their complementary strengths. Results show that hybrid methods enhance accuracy for simpler models with a modest increase in computational time. This highlights their potential to simplify RMB modeling while balancing accuracy and efficiency, offering insights for advancing multi-body system simulations. Building on these insights, data-driven methods are explored for their ability to provide surrogate models for dynamical systems without requiring expert knowledge. Experiments reveal that while simple data-driven methods approximate system behavior when data has low variance, they fail with trajectories of widely varying frequency and amplitude.}},
author = {{Wohlleben, Meike Claudia and Schütte, Jan and Berkemeier, Manuel Bastian and Sextro, Walter and Peitz, Sebastian}},
issn = {{1384-5640}},
journal = {{Multibody System Dynamics}},
pages = {{1–21}},
title = {{{Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings}}},
doi = {{10.1007/s11044-026-10146-9}},
year = {{2026}},
}
@article{64813,
abstract = {{This paper describes the development of a method concept for the mechanical characterisation of cathodic electrodeposition (CED) coatings in the context of adhesively bonded joints. The objective is to determine mechanical properties of coating layer in order to incorporate its influence into numerical simulation models for load-bearing adhesive joints. For this purpose, both single-lap joints (SLJ) and modified thick adherend shear specimens (TASS) with defined CED coating layers were produced and tested under quasi-static loading conditions. Additionally, the deposition process was analysed in terms of coating thickness evolution as a function of deposition time and applied voltage. The specimens were pre-cured to reduce gas inclusions from evaporating solvents in the CED coating layer. The pre-curing temperature was determined using DSC. The results indicate that the modified TASS configuration is particularly suited for the reproducible evaluation of the shear load-bearing capacity. In comparison to the SLJ, it favours the degassing of solvents through the installation of grooves. Furthermore, it is demonstrated that gas-induced defect zones originating from the electrochemical deposition process significantly compromise joint performance. The experimental and process methodology developed in this study enables isolated characterisation of the coating layer and provides a solid foundation for simulation of coated adhesive joints.}},
author = {{Hofmann, Julia and Teutenberg, Dominik and Meschut, Gerson}},
issn = {{0021-8464}},
journal = {{The Journal of Adhesion}},
pages = {{1--16}},
publisher = {{Informa UK Limited}},
title = {{{Method development for the mechanical characterisation of cathodic electrodeposition coatings for numerical simulation of bonded joints}}},
doi = {{10.1080/00218464.2026.2621198}},
year = {{2026}},
}
@inproceedings{64815,
author = {{Hofmann, Julia and Teutenberg, Dominik and Meschut, Gerson and Schulz, Paul and Gude, Maik}},
booktitle = {{26. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
title = {{{Entwicklung eines methodischen Ansatzes zur Gewährleistung der anforderungsgerechten Klebbarkeit von rezyklatbasierten Kunststoffen in der Kreislaufwirtschaft}}},
year = {{2026}},
}
@inproceedings{64814,
author = {{Hofmann, Julia and Teutenberg, Dominik and Meschut, Gerson}},
booktitle = {{26. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
title = {{{Methodenentwicklung zur numerischen Auslegung von Klebverbindungen mit lackierten Fügeteilen}}},
year = {{2026}},
}
@inproceedings{64826,
author = {{Kelber, Max and Brück, Steffen and Bhardwaj, Nishant and Aimiyekagbon, Osarenren Kennedy and Naumann, Rolf and Sextro, Walter}},
booktitle = {{Tagungsband Rad-Schiene-Tagung 2026}},
isbn = {{978-3-96892-332-1}},
location = {{Dresden}},
pages = {{206 – 208}},
publisher = {{DVV Media Group GmbH - Eurailpress}},
title = {{{Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle}}},
year = {{2026}},
}
@article{63665,
author = {{Gude, Maik and Meschut, Gerson and Flügge, Wilko and Fröck, Linda and Wald, Christopher and Neßlinger, Vanessa and Dobrindt-Tittmann, Karsten and Troschitz, Juliane and Neubert, Fynn and Hofmann, Martin and Ostwald, Richard and Mathiszik, Christian and Schmale, Hans Christian and Wallmersperger, Thomas and Grundmeier, Guido}},
issn = {{0143-7496}},
journal = {{International Journal of Adhesion and Adhesives}},
publisher = {{Elsevier BV}},
title = {{{Corrosion of adhesively bonded alloys in maritime environments: A review}}},
doi = {{10.1016/j.ijadhadh.2026.104264}},
volume = {{147}},
year = {{2026}},
}
@article{63391,
abstract = {{This study addresses the challenge of insufficient weld penetration in the outer thin low-carbon steel during
resistance spot welding of three-layer dissimilar stack-ups containing advanced high-strength steels. To overcome
thermal imbalance constraints, an innovative strategy leveraging plastic shell containment is proposed to elevate
the expulsion-free heat input threshold. By applying a combined preheating and ramping current profile, a coordinated “shell-first, nugget-second” sequence is achieved. This mechanism creates a solid-state barrier prior to
rapid fusion, effectively preventing expulsion. Experimental results demonstrate that while the reference
constant-current schedule fails to maintain a process window under a 2 mm initial gap (IG) disturbance, the
proposed strategy significantly enhances process stability. It increases the maximum expulsion-free heat input by
24 % (to 6338 J) under normal conditions and by 77 % (to 6482 J) under the IG condition. Crucially, the
increased heat input drives nugget growth across all interfaces, achieving a penetration depth of 0.38 mm (48 %
penetration ratio) in the low-carbon steel sheet under the gap condition. These findings validate the strategy’s
effectiveness in ensuring weld quality and robustness, which is further confirmed by its transferability to a lowerresistivity DX54D cover sheet.}},
author = {{Yang, Keke and Männer, Leonhard and Wang, Zhuoqun and Olfert, Viktoria and Böhm, Yannic and Hein, David and Meschut, Gerson}},
issn = {{1526-6125}},
journal = {{Journal of Manufacturing Processes}},
number = {{Special issue entitled: ‘Trends on spot joining’ published in Journal of Manufacturing Processes.}},
pages = {{984--1000}},
publisher = {{Elsevier BV}},
title = {{{Process window expansion with transferable applicability in three-layer dissimilar steel resistance spot welding via expulsion prevention}}},
doi = {{10.1016/j.jmapro.2025.12.036}},
volume = {{157}},
year = {{2026}},
}
@article{63418,
abstract = {{Manufacturing tolerances have a measurable influence on the structural integrity of self-piercing riveted (SPR) joints in automotive applications, yet their quantitative impact on load-bearing behavior remains insufficiently resolved. This study establishes a validated hierarchical methodology to predict tolerance-dependent failure behavior of SPR joints, progressing from coupon to sub-component scale through an integrated experimental–numerical approach. Five critical manufacturing tolerances, including rivet length (±0.5 mm), rivet head position (±0.3 mm), orthogonality deviation (2.8° and 5°), lateral offset (up to 1.2 mm), and flange overlap reduction (up to 7.5 mm), were investigated. Steel–steel joints exhibited a higher sensitivity to tolerances by a factor of 2–3 compared to steel–aluminum joints. A unified effective rivet length concept was developed to consolidate the geometric effects of all tolerances into a single physically meaningful parameter, enabling load-bearing capacity prediction with R2 > 0.95 across all evaluated loading directions. The sub-component validation employing T-joint specimens indicates a 2–3 fold amplification of tolerance effects at critical structural regions, providing experimental evidence for the hierarchical scaling principle. The methodology was implemented in a tolerance-dependent CONSTRAINED_SPR3 formulation, providing >99 % computational efficiency improvement while maintaining a deviation in maximum force prediction within ±7 %. This framework enables the physically consistent representation of manufacturing variation within large-scale simulations and establishes a transferable basis for tolerance-resilient virtual vehicle development.}},
author = {{Olfert, Viktoria and Yang, Keke and Rochel, Philip and Bähr, Philipp and Hein, David and Sommer, Silke and Meschut, Gerson}},
issn = {{1526-6125}},
journal = {{Journal of Manufacturing Processes}},
number = {{Special issue entitled: ‘Trends on spot joining’ published in Journal of Manufacturing Processes.}},
pages = {{1250--1273}},
publisher = {{Elsevier BV}},
title = {{{Predictive modeling of tolerance-dependent failure behavior of self-pierce riveted joints: From coupon-level tests to sub-component validation}}},
doi = {{10.1016/j.jmapro.2025.12.058}},
volume = {{157}},
year = {{2026}},
}
@article{64876,
abstract = {{ABSTRACT
This study shows the applicability of ultrasonic sensors for measuring two‐phase layer heights in sieve tray columns under dynamic operating conditions. Although these sensors are known for their precision in stationary systems, their reliability under fluctuating flow conditions has remained unclear. To validate their accuracy, ultrasonic measurements were compared with both automated image analysis via a Python algorithm and manual video evaluation. Results show that ultrasonic sensors maintain high precision at moderate gas loads and with small hole diameters. Increased gas loads and turbulence, however, reduced measurement accuracy due to signal scattering. The findings highlight the potential of ultrasonic sensing for real‐time, noninvasive monitoring in dynamic multiphase systems.}},
author = {{Breuer, Niklas and Grünewald, Marcus and Riese, Julia}},
issn = {{0009-286X}},
journal = {{Chemie Ingenieur Technik}},
publisher = {{Wiley}},
title = {{{Application of Ultrasonic Sensors for Determining the Height of Dynamic Two‐Phase Layers in Tray Columns}}},
doi = {{10.1002/cite.70087}},
year = {{2026}},
}
@article{64656,
abstract = {{ABSTRACT
The filament extension atomization is a promising process for spraying various materials with the potential to produce narrow droplet size distributions. This study systematically investigates the behavior of different fluids and suspensions in the process in order to determine its application limits and identify optimal process parameters. Particular attention was paid to the rheological properties, droplet size distributions, and circularity of the particles produced. The results show that the rotational speed of the rollers and the fluid loading are significant influencing parameters for the resulting particle properties.}},
author = {{Neukötter, Moritz and Aulbur, Nick and Neudorf, Julian and Jesinghausen, Steffen and Schmid, Hans‐Joachim}},
issn = {{0009-286X}},
journal = {{Chemie Ingenieur Technik}},
publisher = {{Wiley}},
title = {{{The Filament Extension Atomization Process for Powder Production of Elastic Fluids}}},
doi = {{https://doi.org/10.1002/cite.70073}},
year = {{2026}},
}
@article{64916,
abstract = {{The joining of dissimilar materials, such as steel and aluminum, entails significant challenges during thermal curing processes due to differing coefficients of thermal expansion. This study addresses the formation of “viscous fingering” instabilities in structural adhesive joints, which are induced by thermally driven relative displacements during the liquid phase of the adhesive. Using a component-like specimen “bridge specimen,” the dependency of this phenomenon on process temperature and structural stiffness (rivet distance) was characterized. Experimental results reveal that while the relative displacement scales cubically with the free buckling length, the resulting adhesive area reduction follows an exponential trend, leading to a loss of effective bond area of up to 79%, which significantly compromises the joint strength in automotive applications. To predict these process-induced defects, a thermo-chemo-viscoelastic-viscoplastic adhesive model implemented in LS-DYNA was applied. The model combines curing kinetics, viscoelastic relaxation, and pressure-dependent plasticity and features a geometric damage parameter (D) that captures the adhesive area reduction caused by viscous fingering as an exponential function of the accumulated normal strain in the liquid phase. This damage parameter, calibrated on base-specimen level, was transferred to the component geometry. The simulation demonstrated high predictive accuracy with a maximum deviation of the adhesive area reduction of 3.1% compared to experimental data. This validates the model’s capability to predict manufacturing-induced damage in complex hybrid structures solely based on thermal boundary conditions.}},
author = {{Al Trjman, Mohamad and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia}},
issn = {{0021-8464}},
journal = {{The Journal of Adhesion}},
keywords = {{Adhesive area reduction, CED coating process, delta alpha problem, epoxy structural adhesive, influence of manufacture, multi-material design, numerical simulation (FEM), relative displacements, viscous fingering (saffman-taylor-instability).}},
pages = {{1--24}},
publisher = {{Informa UK Limited}},
title = {{{Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures}}},
doi = {{10.1080/00218464.2026.2644394}},
year = {{2026}},
}
@article{64985,
abstract = {{Modern industrial development has necessitated a wide range of joining technologies. Self-pierce riveting has become a prevalent technique for sheet metal assembly, especially in automotive applications. Achieving proper joint geometry and adequate load-bearing capacity depends on appropriate tool selection and precise process control. Material properties and condition also play a significant role in process performance. To accommodate the inevitable variations in component characteristics during production, a robust and stable joining process is essential. The study focuses on investigating the influence of preformed joining partners on the joining process and the joint's load capacity. An EN AW-6014 in T4 condition, as well as an HCT590X, are used as materials for this study. For this purpose, an exemplary process chain consisting of the steps of performing, joining, and shear load testing is studied. Each process step is implemented using an FE model to predict the outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation software is used to plan and execute variations of the process. These variations are used to create a meta-model that can describe the relationships between pre-forming and characteristic parameters of subsequent process steps. The resulting model is validated by comparing simulation and experimental data. Finally, in a novel approach, the robustness of the presented process chain is analyzed in terms of a tolerable performance level for the joining partners.}},
author = {{Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson}},
issn = {{2666-3309}},
journal = {{Journal of Advanced Joining Processes}},
keywords = {{Self-pierce riveting, FE modelling, Plastic pre-deformation, Meta modelling}},
publisher = {{Elsevier BV}},
title = {{{Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners}}},
doi = {{10.1016/j.jajp.2026.100391}},
volume = {{13}},
year = {{2026}},
}
@article{64982,
author = {{Lingnau, Kai and Theile-Rasche, Chantal and Vissing, Klaus and Moritzer, Elmar and Grundmeier, Guido and Wiesing, Martin}},
issn = {{02578972}},
journal = {{Surface and Coatings Technology}},
keywords = {{Plasmabeschichtung, Spritzgießen, Spritzgießwerkzeug, Trennschicht, ultraTrenn, Werkzeugbeschichtung}},
pages = {{133280}},
title = {{{Mechanisms of deposit formation in injection moulding cavities and the role of tool coatings and internal release agents}}},
doi = {{10.1016/j.surfcoat.2026.133280}},
volume = {{524}},
year = {{2026}},
}
@misc{65010,
author = {{Landgräber, Jan and Schöppner, Volker and Brüning, Florian}},
booktitle = {{Kunststoffe}},
number = {{01}},
pages = {{22 -- 25}},
title = {{{Der Einzug als Schlüssel zum Erfolg: Untersuchung des Einzugsverhaltens bei Spritzgießaggregaten}}},
year = {{2026}},
}
@article{65037,
abstract = {{ABSTRACT
Homogenization methods simulate heterogeneous materials like composites effectively, but high computational demands can offset their benefits. This work balances accuracy and efficiency by assessing model and discretization errors of the finite element method (FEM) through an adaptive numerical scheme. Two model hierarchies are introduced, combining mean‐field and full‐field methods, and nonuniform transformation field analysis (NTFA) with full‐field methods. Both hierarchies use a full‐field FEM solution of the representative volume element (RVE) as reference. The study highlights the benefits of using effective constitutive equations from mean‐field and full‐field methods as well as NTFA methods, with a goal‐oriented a posteriori error estimator based on duality techniques controlling mesh and model errors in a forwards‐in‐time manner.}},
author = {{Simeu, Arnold Tchomgue and Caylak, Ismail and Ostwald, Richard}},
issn = {{0029-5981}},
journal = {{International Journal for Numerical Methods in Engineering}},
number = {{6}},
publisher = {{Wiley}},
title = {{{Mesh and Model Adaptivity for Multiscale Elastoplastic Models With Prandtl‐Reuss Type Material Laws}}},
doi = {{10.1002/nme.70294}},
volume = {{127}},
year = {{2026}},
}
@article{64997,
author = {{Trienens, Dorte and Brüning, Florian and Schöppner, Volker}},
journal = {{kunststoffland NRW report}},
keywords = {{extrusion, KI, Simulation}},
number = {{03-2025}},
pages = {{24–25}},
title = {{{Wo Forschung, KI und Praxis aufeinandertreffen}}},
year = {{2026}},
}
@inproceedings{65041,
author = {{Landgräber, Jan and Schöppner, Volker}},
title = {{{Verbesserung des Einzugsverhaltens im Spritzgießprozess - Numerik und Experiment}}},
year = {{2026}},
}
@article{65093,
author = {{Marten, Thorsten and Ostermann, Moritz and Behm, Jonathan and Leitenmaier, Samuel}},
issn = {{21991944}},
journal = {{Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog}},
number = {{1}},
pages = {{23--27}},
publisher = {{wbv Publikation}},
title = {{{NeMo.bil - Individualisierter öffentlicher Personennahverkehr - iÖV}}},
doi = {{10.3278/BB2601}},
volume = {{209}},
year = {{2026}},
}
@article{65104,
author = {{Hermelingmeier, Lucas and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson}},
issn = {{0143-7496}},
journal = {{International Journal of Adhesion and Adhesives}},
publisher = {{Elsevier BV}},
title = {{{Comparison of fixture-based and manual fiber integration in adhesive joints: Effects on strain signal quality}}},
doi = {{10.1016/j.ijadhadh.2026.104319}},
volume = {{149}},
year = {{2026}},
}
@article{65266,
abstract = {{ABSTRACT
This work is concerned with the modeling of a cold‐box sand, a composition of sand grains and a resin binder. To this end, experiments are performed, which show the following characteristics: localization phenomena in the form of a shear band, softening behavior in the force‐displacement curve, and asymmetric behavior for compression and tension. To model this complex material behavior, a micromorphic continuum is used. In the present contribution, we focus on the linear‐elastic regime and demonstrate the identifiability of micromorphic material parameters under deliberately induced inhomogeneous deformation states. In addition to the degrees of freedom of a classical continuum, the micromorphic model has additional degrees of freedom, introduced here in a phenomenological sense to represent kinematically enriched deformation modes associated with the granular microstructure. Accordingly, the micromorphic fields are not interpreted as a separate physical scale (e.g., “binder” vs. “grains”), but as an effective continuum description at the specimen scale. This contribution addresses parameter identification for a micromorphic model of cold‐box sand, with a clear separation between homogeneous deformation states governing classical elastic parameters and inhomogeneous states required to activate and identify micromorphic length‐scale parameters. The main challenge lies in identifying the micro material parameters. To determine these, the corresponding gradient terms in the constitutive formulation must be triggered via properly tuned experiments. Micro‐parameter identification is demonstrated using synthetic data generated from a boundary‐value problem with inhomogeneous displacement fields. The chosen benchmark enables controlled activation of gradient terms and thereby renders optimization‐based identification of micromorphic parameters feasible. The synthetic example is deliberately chosen to assess feasibility and identifiability under controlled conditions, thereby isolating micromorphic identifiability aspects from experimental uncertainties. The novelty of the contribution lies in explicitly linking micromorphic parameter identifiability to kinematic inhomogeneity, and in demonstrating this link within a tractable forward– inverse setting for a linear‐elastic micromorphic continuum.}},
author = {{Börger, Alexander and Mahnken, Rolf and Caylak, Ismail and Ostwald, Richard}},
issn = {{1617-7061}},
journal = {{Proceedings in Applied Mathematics and Mechanics}},
number = {{2}},
publisher = {{Wiley}},
title = {{{Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand}}},
doi = {{10.1002/pamm.70093}},
volume = {{26}},
year = {{2026}},
}