Han, F.; Diehl, M.; Roters, F.; Raabe, D.: Multi-scale modeling of plasticity. ICIAM 2019 - The 9th International Congress on Industrial and Applied Mathematics, Valencia, Spain (2019)
Liu, C.; Shanthraj, P.; Roters, F.; Raabe, D.: Phase-field/CALPHAD methods for multi-phase and multi-component microstructures. The 4th International Symposium on Phase Field Modelling in Materials Science (PF 19), Bochum, Germany (2019)
Sedighiani, K.; Diehl, M.; Roters, F.; Sietsma, J.; Raabe, D.: Obtaining constitutive parameters for a physics-based crystal plasticity model from macro-scale behavior. International Conference on Plasticity, Damage, and Fracture , Panama City, Panama (2019)
Diehl, M.; Shanthraj, P.; Eisenlohr, P.; Roters, F.; Raabe, D.: DAMASK - Düsseldorf Advanced Material Simulation Kit. Seminar of the Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA, USA (2018)
Diehl, M.; Shanthraj, P.; Eisenlohr, P.; Roters, F.; Raabe, D.: DAMASK - Düsseldorf Advanced Material Simulation Kit. Seminar of the Department of Mechanical Engineering, Villanova University, Villanova, PA, USA (2018)
Diehl, M.; Shanthraj, P.; Eisenlohr, P.; Roters, F.; Raabe, D.: DAMASK - The Düsseldorf Advanced Material Simulation Kit for Modeling Multi-Physics Crystal Plasticity, Thermal, and Damage Phenomena. WCCM 2018, 13th World Congress in Computational Mechanics, New York, USA (2018)
Han, F.; Diehl, M.; Roters, F.; Raabe, D.: Multi-scale modelling of sheet metal forming by coupling FEM with a CP-Spectral solver using the DAMASK modelling package. 10th European Solid Mechanics Conference (ESMC2018), Bologna, Italy (2018)
Roters, F.; Diehl, M.; Wong, S. L.; Shanthraj, P.; Raabe, D.: DAMASK: the Düsseldorf Advanced MAterial Simulation Kit for studying multi-physics crystal plasticity phenomena. 10 Years ICAMS - International Symposium, Bochum, Germany (2018)
Wong, S. L.; Laptyeva, G.; Brüggemann, T.; Karhausen, K.-F.; Roters, F.; Raabe, D.: An improved unified internal state variable model exploiting first principle calculations for flow stress modeling of aluminium alloys. International Conference on Aluminum Alloys (ICAA), Montreal, Canada (2018)
Roters, F.; Diehl, M.; Shanthraj, P.: Coupled Experimental-Numerical Analysis of Strain Partitioning in Metallic Microstructures: The Importance of a 3D Neighborhood. Schöntal Symposium on 'Dislocation based Plasticity, Schöntal, Germany (2018)
Roters, F.; Sharma, L.; Diehl, M.; Shanthraj, P.: Including Damage Modelling into Crystal Plasticity Simulations using the Düsseldorf Advanced Material Simulation Kit DAMASK. Symposium Nano and Micro Scale Damage in Metals, Utrecht, The Netherlands (2018)
Diehl, M.; Shanthraj, P.; Roters, F.; Raabe, D.: Simulation Study on Plasticity and Fracture in Aluminium Based on Real Microstructures. TMS 2018 Annual Meeting & Exhibition, Phoenix, AZ, USA (2018)
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.
Enabling a ‘hydrogen economy’ requires developing fuel cells satisfying economic constraints, reasonable operating costs and long-term stability. The fuel cell is an electrochemical device that converts chemical energy into electricity by recombining water from H2 and O2, allowing to generate environmentally-friendly power for e.g. cars or houses…
The project Hydrogen Embrittlement Protection Coating (HEPCO) addresses the critical aspects of hydrogen permeation and embrittlement by developing novel strategies for coating and characterizing hydrogen permeation barrier layers for valves and pumps used for hydrogen storage and transport applications.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.
In this project, we work on a generic solution to design advanced high-entropy alloys (HEAs) with enhanced magnetic properties. By overturning the concept of stabilizing solid solutions in HEAs, we propose to render the massive solid solutions metastable and trigger spinodal decomposition. The motivation for starting from the HEA for this approach…