Rezaei, S.; Jaworek, D.; Mianroodi, J. R.; Wulfinghoff, S.; Reese, S.: Atomistically motivated interface model to account for coupled plasticity and damage at grain boundaries. Journal of the Mechanics and Physics of Solids 124, pp. 325 - 349 (2019)
Mianroodi, J. R.; Hunter, A. G. M.; Beyerlein, I. J.; Svendsen, B.: Theoretical and computational comparison of models for dislocation dissociation and stacking fault/core formation in fcc crystals. Journal of the Mechanics and Physics of Solids 95, pp. 719 - 741 (2016)
Kochmann, J.; Wulfinghoff, S.; Reese, S.; Mianroodi, J. R.; Svendsen, B.: Two-scale FE–FFT- and phase-field-based computational modeling of bulk microstructural evolution and macroscopic material behavior. Computer Methods in Applied Mechanics and Engineering 305, pp. 89 - 110 (2016)
Mianroodi, J. R.; Peerlings, R.; Svendsen, B.: Strongly non-local modelling of dislocation transport and pile-up. Philosopical Magazine A 96 (12), pp. 1171 - 1187 (2016)
Mianroodi, J. R.; Svendsen, B.: Atomistically determined phase-field modeling of dislocation dissociation, stacking fault formation, dislocation slip, and reactions in fcc systems. Journal of the Mechanics and Physics of Solids 77, pp. 109 - 122 (2015)
Mianroodi, J. R.; Svendsen, B.: Modeling Dislocation-Stacking Fault Interaction Using Molecular Dynamics. Proceedings of Applied Mathematics and Mechanics 13 (1), pp. 11 - 14 (2013)
Rezaei, S.; Mianroodi, J. R.; Brepols, T.; Wulfinghoff, S.; Reese, S.: An interface model to account for damage and plasticity at grain boundaries. Proceedings of Applied Mathematics and Mechanics, Special Issue: 90th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) 19 (1), e201900214, (2019)
Mianroodi, J. R.; Peerlings, R.; Svendsen, B.: Strongly versus weakly non-local dislocation transport and pile-up. In: Contributions to the Foundations of Multidisciplinary Research in Mechanics, pp. 2464 - 2465 (Ed. Floryan, E. J.M.). 24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016) - XXIV ICTAM, Montreal, Canada, August 21, 2016 - August 26, 2016. IUTAM (2017)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…