16 citations · 23 across the 10 of their papers we have counts for
10 papers
Numerically optimized FROG results for the study of red-shifted spectra in multi-frequency Raman generation
Sakthi Priya Amirtharaj, Zujun Xu, Donna Strickland +7
When multifrequency Raman scattering is driven in the transient regime by two chirped pump pulses, the resulting anti-Stokes orders exhibit asymmetric spectral broadening toward lo…
Predicting temperature-dependent failure and transformation zones in 2D silica glass through quasistatic Gaussian Phase Packets
Miguel Spínola, Shashank Saxena, Franz Bamer +1
The athermal quasistatic (AQS) method is a powerful technique to study the mechanical behavior of disordered systems. However, its applicability is limited to temperatures near zer…
Parallel athermal quasistatic deformation stepping of molecular systems
Maximilian Reihn, Franz Bamer, Benjamin Stamm
The athermal quasistatic deformation method provides an elegant solution to overcome the limitation of short time spans in molecular simulations. It provides overdamped conditions,…
Geometrical fingerprints of shear transformation zones in network glasses
Franz Bamer, Zhao Wu, Somar Shekh Alshabab
Oxide glasses have the structure of disordered covalent networks that are accountable for their mechanical response. Identifying the topological phenomena of the elastic structural…
Stochastic evolution elasto-plastic modeling of a metallic glass
Bin Xu, Zhao Wu, Jiayin Lu +4
This paper develops a general data-driven approach to stochastic elastoplastic modelling that leverages atomistic simulation data directly rather than by fitting parameters. The ap…
Reliability Analysis of Complex Systems using Subset Simulations with Hamiltonian Neural Networks
Denny Thaler, Somayajulu L. N. Dhulipala, Franz Bamer +2
We present a new Subset Simulation approach using Hamiltonian neural network-based Monte Carlo sampling for reliability analysis. The proposed strategy combines the superior sampli…
Universality in the fracture of silica glass
Somar Shekh Alshabab, Bernd Markert, Franz Bamer
The presence of universality of avalanches characterizing the inelastic response of disordered materials has the potential to bridge the gap from micro- to macroscale. In this stud…
Constructing the Hamiltonian from the behaviour of a dynamical system by proper symplectic decomposition
Nima Shirafkan, Pierre Gosselet, Franz Bamer +3
The modal analysis is revisited through the symplectic formalism, what leads to two intertwined eigenproblems. Studying the properties of the solutions, we prove that they form a c…
Explainable artificial intelligence for mechanics: physics-informing neural networks for constitutive models
Arnd Koeppe, Franz Bamer, Michael Selzer +2
(Artificial) neural networks have become increasingly popular in mechanics to accelerate computations with model order reduction techniques and as universal models for a wide varie…
Origin of reversible and irreversible atomic-scale rearrangements in a model two-dimensional network glass
Firaz Ebrahem, Franz Bamer, Bernd Markert
In this contribution, we investigate the fundamental mechanism of plasticity in a model two-dimensional network glass. The glass is generated by using a Monte Carlo bond-switching…