Fracture across Scales

Welcome to the Website of the Research Training Group GRK 2423 FRASCAL!

Fracture across Scales

Integrating Mechanics, Materials Science, Mathematics, Chemistry, and Physics

FRASCAL aims to improve understanding of fracture behaviour in brittle heterogeneous materials by developing simulation methods that are able to capture the multiscale nature of failure. With (i) its rooting in different scientific disciplines, (ii) its focus on the influence of heterogeneity on fracture behaviour at different length and time scales as well as (iii) its integration of highly specialised approaches into a “holistic” concept, FRASCAL addresses a truly challenging interdisciplinary topic in mechanics of materials.

Although various simulation approaches describing fracture behaviour exist for particular types of materials and specific time and length scales, an integrated and all-encompassing approach that is able to capture fracture processes in different – and in particular heterogeneous – materials at various length and time resolutions is still lacking. Thus, the objective of this interdisciplinary Research Training Group (RTG) consisting of experts from mechanics, materials science, mathematics, chemistry, and physics is to develop the necessary methodology to investigate the mechanisms underlying brittle fracture and how they are influenced by heterogeneity in various materials.

The insights obtained together with the methodological framework will allow tailoring and optimising materials with regard to fracture behaviour. FRASCAL covers a representative spectrum of brittle materials and their composites, together with granular and porous materials. We study these at length and time scales relevant to science and engineering, ranging from sub-atomic via atomic and molecular over mesoscale to macroscopic dimensions. Our modelling approaches and simulation tools are based on concepts from quantum mechanics, molecular mechanics, mesoscopic approaches, and continuum mechanics. These are integrated into an overall framework, which represents an important step towards a virtual laboratory eventually complementing and minimising extensive and expensive experimental testing of materials and components.

Within FRASCAL, young researchers under the supervision of experienced PAs perform cutting-edge research on challenging scientific aspects of fracture. FRASCAL fosters synergies in research and advanced education and is intended to become a key element in FAU‘s interdisciplinary research areas “New Materials and Processes” and “Modelling–Simulation–Optimisation”

The 1st FRASCAL Autumn School 2022 on "Software Development" will take place for the first time. The two-day training course will cover the fundamentals and development of software architectures. The 1st FRASCAL Autumn School will be held from 13 to 14 October 2022 at the Hotel Fuchsbräu in the historic small town of Beilngries and is aimed at all FRASCAL doctoral researchers.

Inspired by the images of the doctoral researcher’s simulations, which are not only scientifically impressive but also extremely valuable from an artistic point of view, we have launched the project “FRASCAL goes ART".

On 01 August 2022, FRASCAL associate member Ms Ina Schmidt (TH Nürnberg Georg Simon Ohm) successfully defended her dissertation entitled "Modelling and Simulation of Bone Adaptation Processes" and received the title of Dr.-Ing. Congratulations, Ina!