PHYSICS BASED MODELLING OF MATERIALS

The objective of the workshop, co-organized by Joint Research Centre (JRC) and TOBB University of Economics and Technology (TOBB ETU), is to discuss the present status of physics-based models to predict material degradation and failure of mechanical components. Such approaches allow a better understanding of how the material microstructure, environment and loadings affect degradation and failure mechanisms. Physics-based models are also necessary for extrapolation of data beyond operational experience and for correctly predicting the transferability between specimen tests and real components. The Workshop is funded through the EU Enlargement & Integration Action (E&IA).

WORKSHOP SCOPE

The structural integrity and functioning of mechanical components is affected by initial defects as well as by time dependent degradation mechanisms such as creep, fatigue, stress, corrosion, irradiation embrittlement and thermal ageing. The modeling and understanding of degradation mechanisms and the predictability of failure loads is constantly evolving. Recently, we have seen a trend towards physics-based models that simulate the degradation and failure processes and mechanisms that operate at different length and time scales. Such approaches allow us to make better prediction of longterm performance and safety margins, transferability between specimens and components.


This workshop will give an overview of different physicsbased models for fracture and degradation of metallic materials and how they can be used for improved understanding and more reliable predictions. Models of interest include cohesive zones to simulate fracture processes, ductile-brittle transition for ferritic steels, ductile fracture mechanisms such as void growth or localized shear, fatigue crack initiation and short crack growth, environmental assisted cracking. Experimental studies that support such models and case studies that illustrate their use are also within the scope. The Workshop is also an opportunity for scientists and engineers from EU Member States and target countries to discuss research activities that could be a basis for future collaborations.